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Publisher: Springer-Verlag (Total: 2350 journals)

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Showing 1 - 200 of 2350 Journals sorted alphabetically
3D Printing in Medicine     Open Access  
3D Research     Hybrid Journal   (Followers: 20, SJR: 0.214, h-index: 10)
4OR: A Quarterly J. of Operations Research     Hybrid Journal   (Followers: 10, SJR: 1.073, h-index: 25)
AAPS J.     Hybrid Journal   (Followers: 21, SJR: 1.192, h-index: 74)
AAPS PharmSciTech     Hybrid Journal   (Followers: 7, SJR: 0.718, h-index: 54)
Abdominal Imaging     Hybrid Journal   (Followers: 14, SJR: 0.723, h-index: 60)
Abhandlungen aus dem Mathematischen Seminar der Universitat Hamburg     Hybrid Journal   (Followers: 4, SJR: 0.447, h-index: 12)
Academic Psychiatry     Full-text available via subscription   (Followers: 23, SJR: 0.492, h-index: 32)
Academic Questions     Hybrid Journal   (Followers: 8, SJR: 0.135, h-index: 6)
Accreditation and Quality Assurance: J. for Quality, Comparability and Reliability in Chemical Measurement     Hybrid Journal   (Followers: 26, SJR: 0.378, h-index: 30)
Acoustical Physics     Hybrid Journal   (Followers: 11, SJR: 0.355, h-index: 20)
Acoustics Australia     Hybrid Journal  
Acta Analytica     Hybrid Journal   (Followers: 7, SJR: 0.387, h-index: 6)
Acta Applicandae Mathematicae     Hybrid Journal   (Followers: 1, SJR: 0.624, h-index: 34)
Acta Biotheoretica     Hybrid Journal   (Followers: 4, SJR: 0.419, h-index: 25)
Acta Diabetologica     Hybrid Journal   (Followers: 16, SJR: 1.318, h-index: 46)
Acta Endoscopica     Hybrid Journal   (Followers: 1, SJR: 0.113, h-index: 8)
acta ethologica     Hybrid Journal   (Followers: 4, SJR: 0.465, h-index: 23)
Acta Geochimica     Hybrid Journal   (Followers: 6)
Acta Geodaetica et Geophysica     Hybrid Journal   (Followers: 2, SJR: 0.294, h-index: 13)
Acta Geotechnica     Hybrid Journal   (Followers: 7, SJR: 1.818, h-index: 22)
Acta Informatica     Hybrid Journal   (Followers: 5, SJR: 0.524, h-index: 32)
Acta Mathematica     Hybrid Journal   (Followers: 12, SJR: 8.021, h-index: 47)
Acta Mathematica Hungarica     Hybrid Journal   (Followers: 2, SJR: 0.53, h-index: 29)
Acta Mathematica Sinica, English Series     Hybrid Journal   (Followers: 6, SJR: 0.406, h-index: 30)
Acta Mathematica Vietnamica     Hybrid Journal   (SJR: 0.451, h-index: 5)
Acta Mathematicae Applicatae Sinica, English Series     Hybrid Journal   (SJR: 0.22, h-index: 20)
Acta Mechanica     Hybrid Journal   (Followers: 21, SJR: 0.898, h-index: 52)
Acta Mechanica Sinica     Hybrid Journal   (Followers: 5, SJR: 0.426, h-index: 29)
Acta Metallurgica Sinica (English Letters)     Hybrid Journal   (Followers: 7, SJR: 0.525, h-index: 18)
Acta Meteorologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.524, h-index: 14)
Acta Neurochirurgica     Hybrid Journal   (Followers: 6, SJR: 0.833, h-index: 73)
Acta Neurologica Belgica     Hybrid Journal   (Followers: 1, SJR: 0.348, h-index: 27)
Acta Neuropathologica     Hybrid Journal   (Followers: 5, SJR: 6.61, h-index: 117)
Acta Oceanologica Sinica     Hybrid Journal   (Followers: 3, SJR: 0.295, h-index: 17)
Acta Parasitologica     Hybrid Journal   (Followers: 10, SJR: 0.581, h-index: 28)
Acta Physiologiae Plantarum     Hybrid Journal   (Followers: 2, SJR: 0.551, h-index: 39)
Acta Politica     Hybrid Journal   (Followers: 13, SJR: 0.658, h-index: 20)
Activitas Nervosa Superior     Hybrid Journal  
adhäsion KLEBEN & DICHTEN     Hybrid Journal   (Followers: 6, SJR: 0.103, h-index: 4)
ADHD Attention Deficit and Hyperactivity Disorders     Hybrid Journal   (Followers: 22, SJR: 0.871, h-index: 15)
Adhesion Adhesives & Sealants     Hybrid Journal   (Followers: 9)
Administration and Policy in Mental Health and Mental Health Services Research     Partially Free   (Followers: 15, SJR: 0.795, h-index: 40)
Adsorption     Hybrid Journal   (Followers: 4, SJR: 0.774, h-index: 52)
Advances in Applied Clifford Algebras     Hybrid Journal   (Followers: 4, SJR: 0.319, h-index: 15)
Advances in Atmospheric Sciences     Hybrid Journal   (Followers: 36, SJR: 0.959, h-index: 44)
Advances in Computational Mathematics     Hybrid Journal   (Followers: 19, SJR: 1.255, h-index: 44)
Advances in Contraception     Hybrid Journal   (Followers: 3)
Advances in Data Analysis and Classification     Hybrid Journal   (Followers: 52, SJR: 1.113, h-index: 14)
Advances in Gerontology     Partially Free   (Followers: 8, SJR: 0.141, h-index: 3)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 27, SJR: 1.397, h-index: 42)
Advances in Manufacturing     Hybrid Journal   (Followers: 3, SJR: 0.2, h-index: 4)
Advances in Polymer Science     Hybrid Journal   (Followers: 43, SJR: 0.637, h-index: 89)
Advances in Therapy     Hybrid Journal   (Followers: 5, SJR: 0.79, h-index: 44)
Aegean Review of the Law of the Sea and Maritime Law     Hybrid Journal   (Followers: 6)
Aequationes Mathematicae     Hybrid Journal   (Followers: 2, SJR: 0.882, h-index: 23)
Aerobiologia     Hybrid Journal   (Followers: 3, SJR: 0.511, h-index: 36)
Aesthetic Plastic Surgery     Hybrid Journal   (Followers: 9, SJR: 0.821, h-index: 49)
African Archaeological Review     Hybrid Journal   (Followers: 16, SJR: 0.612, h-index: 24)
Afrika Matematika     Hybrid Journal   (Followers: 1, SJR: 0.248, h-index: 6)
AGE     Hybrid Journal   (Followers: 7, SJR: 1.358, h-index: 33)
Ageing Intl.     Hybrid Journal   (Followers: 7, SJR: 0.337, h-index: 10)
Aggiornamenti CIO     Hybrid Journal   (Followers: 1)
Aging Clinical and Experimental Research     Hybrid Journal   (Followers: 3, SJR: 0.529, h-index: 55)
Agricultural Research     Hybrid Journal   (Followers: 4)
Agriculture and Human Values     Hybrid Journal   (Followers: 14, SJR: 1.197, h-index: 49)
Agroforestry Systems     Hybrid Journal   (Followers: 19, SJR: 0.64, h-index: 56)
Agronomy for Sustainable Development     Hybrid Journal   (Followers: 11, SJR: 1.732, h-index: 59)
AI & Society     Hybrid Journal   (Followers: 8, SJR: 0.171, h-index: 19)
AIDS and Behavior     Hybrid Journal   (Followers: 13, SJR: 2.006, h-index: 71)
Air Quality, Atmosphere & Health     Hybrid Journal   (Followers: 4, SJR: 0.706, h-index: 19)
Akupunktur & Aurikulomedizin     Full-text available via subscription   (Followers: 1)
Algebra and Logic     Hybrid Journal   (Followers: 5, SJR: 0.566, h-index: 18)
Algebra Universalis     Hybrid Journal   (Followers: 2, SJR: 0.388, h-index: 22)
Algebras and Representation Theory     Hybrid Journal   (Followers: 1, SJR: 0.868, h-index: 20)
Algorithmica     Hybrid Journal   (Followers: 8, SJR: 0.898, h-index: 56)
Allergo J.     Full-text available via subscription   (Followers: 1, SJR: 0.183, h-index: 20)
Allergo J. Intl.     Hybrid Journal   (Followers: 2)
Alpine Botany     Hybrid Journal   (Followers: 5, SJR: 0.729, h-index: 20)
ALTEX : Alternatives to Animal Experimentation     Open Access   (Followers: 3, SJR: 1.392, h-index: 32)
AMBIO     Hybrid Journal   (Followers: 11, SJR: 1.094, h-index: 87)
American J. of Cardiovascular Drugs     Hybrid Journal   (Followers: 16, SJR: 0.864, h-index: 39)
American J. of Community Psychology     Hybrid Journal   (Followers: 27, SJR: 1.237, h-index: 83)
American J. of Criminal Justice     Hybrid Journal   (Followers: 8, SJR: 0.634, h-index: 13)
American J. of Cultural Sociology     Hybrid Journal   (Followers: 15, SJR: 0.283, h-index: 3)
American J. of Dance Therapy     Hybrid Journal   (Followers: 4, SJR: 0.175, h-index: 13)
American J. of Potato Research     Hybrid Journal   (Followers: 2, SJR: 0.558, h-index: 35)
American J. of Psychoanalysis     Hybrid Journal   (Followers: 20, SJR: 0.293, h-index: 13)
American Sociologist     Hybrid Journal   (Followers: 12, SJR: 0.18, h-index: 13)
Amino Acids     Hybrid Journal   (Followers: 8, SJR: 1.362, h-index: 83)
AMS Review     Partially Free   (Followers: 4)
Analog Integrated Circuits and Signal Processing     Hybrid Journal   (Followers: 7, SJR: 0.21, h-index: 37)
Analysis and Mathematical Physics     Hybrid Journal   (Followers: 5, SJR: 0.665, h-index: 7)
Analysis in Theory and Applications     Hybrid Journal   (Followers: 1)
Analysis of Verbal Behavior     Hybrid Journal   (Followers: 5)
Analytical and Bioanalytical Chemistry     Hybrid Journal   (Followers: 32, SJR: 1.096, h-index: 123)
Anatomical Science Intl.     Hybrid Journal   (Followers: 2, SJR: 0.301, h-index: 26)
Angewandte Schmerztherapie und Palliativmedizin     Hybrid Journal  
Angiogenesis     Hybrid Journal   (Followers: 3, SJR: 2.212, h-index: 69)
Animal Cognition     Hybrid Journal   (Followers: 18, SJR: 1.122, h-index: 55)
Annales françaises de médecine d'urgence     Hybrid Journal   (Followers: 1, SJR: 0.156, h-index: 4)
Annales Henri Poincaré     Hybrid Journal   (Followers: 3, SJR: 1.377, h-index: 32)
Annales mathématiques du Québec     Hybrid Journal   (Followers: 4)
Annali dell'Universita di Ferrara     Hybrid Journal   (SJR: 0.504, h-index: 14)
Annali di Matematica Pura ed Applicata     Hybrid Journal   (Followers: 1, SJR: 1.167, h-index: 26)
Annals of Biomedical Engineering     Hybrid Journal   (Followers: 18, SJR: 1.182, h-index: 94)
Annals of Combinatorics     Hybrid Journal   (Followers: 4, SJR: 0.849, h-index: 15)
Annals of Data Science     Hybrid Journal   (Followers: 11)
Annals of Dyslexia     Hybrid Journal   (Followers: 10, SJR: 0.857, h-index: 40)
Annals of Finance     Hybrid Journal   (Followers: 29, SJR: 0.686, h-index: 14)
Annals of Forest Science     Hybrid Journal   (Followers: 7, SJR: 0.929, h-index: 57)
Annals of Global Analysis and Geometry     Hybrid Journal   (Followers: 1, SJR: 1.136, h-index: 23)
Annals of Hematology     Hybrid Journal   (Followers: 16, SJR: 1.117, h-index: 62)
Annals of Mathematics and Artificial Intelligence     Hybrid Journal   (Followers: 12, SJR: 0.593, h-index: 42)
Annals of Microbiology     Hybrid Journal   (Followers: 10, SJR: 0.402, h-index: 26)
Annals of Nuclear Medicine     Hybrid Journal   (Followers: 4, SJR: 0.68, h-index: 45)
Annals of Operations Research     Hybrid Journal   (Followers: 10, SJR: 1.186, h-index: 78)
Annals of Ophthalmology     Hybrid Journal   (Followers: 12)
Annals of Regional Science     Hybrid Journal   (Followers: 7, SJR: 0.405, h-index: 42)
Annals of Software Engineering     Hybrid Journal   (Followers: 13)
Annals of Solid and Structural Mechanics     Hybrid Journal   (Followers: 9, SJR: 0.553, h-index: 8)
Annals of Surgical Oncology     Hybrid Journal   (Followers: 14, SJR: 1.902, h-index: 127)
Annals of Telecommunications     Hybrid Journal   (Followers: 9, SJR: 0.315, h-index: 25)
Annals of the Institute of Statistical Mathematics     Hybrid Journal   (Followers: 1, SJR: 0.931, h-index: 31)
Antonie van Leeuwenhoek     Hybrid Journal   (Followers: 5, SJR: 0.992, h-index: 87)
Apidologie     Hybrid Journal   (Followers: 4, SJR: 1.14, h-index: 57)
APOPTOSIS     Hybrid Journal   (Followers: 8, SJR: 1.554, h-index: 87)
Applicable Algebra in Engineering, Communication and Computing     Hybrid Journal   (Followers: 2, SJR: 0.354, h-index: 27)
Applications of Mathematics     Hybrid Journal   (Followers: 2, SJR: 0.274, h-index: 20)
Applied Biochemistry and Biotechnology     Hybrid Journal   (Followers: 42, SJR: 0.575, h-index: 80)
Applied Biochemistry and Microbiology     Hybrid Journal   (Followers: 16, SJR: 0.267, h-index: 26)
Applied Cancer Research     Open Access  
Applied Categorical Structures     Hybrid Journal   (Followers: 2, SJR: 0.361, h-index: 21)
Applied Composite Materials     Hybrid Journal   (Followers: 49, SJR: 0.705, h-index: 35)
Applied Entomology and Zoology     Partially Free   (Followers: 3, SJR: 0.554, h-index: 34)
Applied Geomatics     Hybrid Journal   (Followers: 3, SJR: 0.323, h-index: 9)
Applied Geophysics     Hybrid Journal   (Followers: 8, SJR: 0.541, h-index: 13)
Applied Intelligence     Hybrid Journal   (Followers: 11, SJR: 0.777, h-index: 43)
Applied Magnetic Resonance     Hybrid Journal   (Followers: 4, SJR: 0.358, h-index: 34)
Applied Mathematics & Optimization     Hybrid Journal   (Followers: 6, SJR: 0.955, h-index: 33)
Applied Mathematics - A J. of Chinese Universities     Hybrid Journal   (SJR: 0.275, h-index: 8)
Applied Mathematics and Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.37, h-index: 26)
Applied Microbiology and Biotechnology     Hybrid Journal   (Followers: 63, SJR: 1.262, h-index: 161)
Applied Physics A     Hybrid Journal   (Followers: 9, SJR: 0.535, h-index: 121)
Applied Physics B: Lasers and Optics     Hybrid Journal   (Followers: 24, SJR: 0.983, h-index: 104)
Applied Psychophysiology and Biofeedback     Hybrid Journal   (Followers: 8, SJR: 0.677, h-index: 47)
Applied Research in Quality of Life     Hybrid Journal   (Followers: 11, SJR: 0.288, h-index: 15)
Applied Solar Energy     Hybrid Journal   (Followers: 18, SJR: 0.251, h-index: 6)
Applied Spatial Analysis and Policy     Hybrid Journal   (Followers: 4, SJR: 0.351, h-index: 9)
Aquaculture Intl.     Hybrid Journal   (Followers: 22, SJR: 0.613, h-index: 40)
Aquarium Sciences and Conservation     Hybrid Journal   (Followers: 1)
Aquatic Ecology     Hybrid Journal   (Followers: 33, SJR: 0.646, h-index: 44)
Aquatic Geochemistry     Hybrid Journal   (Followers: 4, SJR: 0.764, h-index: 39)
Aquatic Sciences     Hybrid Journal   (Followers: 13, SJR: 1.172, h-index: 53)
Arabian J. for Science and Engineering     Hybrid Journal   (Followers: 5, SJR: 0.345, h-index: 20)
Arabian J. of Geosciences     Hybrid Journal   (Followers: 2, SJR: 0.417, h-index: 16)
Archaeological and Anthropological Sciences     Hybrid Journal   (Followers: 20, SJR: 1.056, h-index: 15)
Archaeologies     Hybrid Journal   (Followers: 12, SJR: 0.397, h-index: 13)
Archiv der Mathematik     Hybrid Journal   (Followers: 1, SJR: 0.597, h-index: 29)
Archival Science     Hybrid Journal   (Followers: 58, SJR: 0.804, h-index: 22)
Archive for History of Exact Sciences     Hybrid Journal   (Followers: 8, SJR: 0.28, h-index: 15)
Archive for Mathematical Logic     Hybrid Journal   (Followers: 2, SJR: 0.946, h-index: 23)
Archive for Rational Mechanics and Analysis     Hybrid Journal   (SJR: 4.091, h-index: 66)
Archive of Applied Mechanics     Hybrid Journal   (Followers: 5, SJR: 0.865, h-index: 40)
Archives and Museum Informatics     Hybrid Journal   (Followers: 140)
Archives of Computational Methods in Engineering     Hybrid Journal   (Followers: 5, SJR: 2.841, h-index: 40)
Archives of Dermatological Research     Hybrid Journal   (Followers: 7, SJR: 0.9, h-index: 65)
Archives of Environmental Contamination and Toxicology     Hybrid Journal   (Followers: 14, SJR: 0.846, h-index: 84)
Archives of Gynecology and Obstetrics     Hybrid Journal   (Followers: 16, SJR: 0.695, h-index: 47)
Archives of Microbiology     Hybrid Journal   (Followers: 8, SJR: 0.702, h-index: 85)
Archives of Orthopaedic and Trauma Surgery     Hybrid Journal   (Followers: 8, SJR: 1.039, h-index: 56)
Archives of Osteoporosis     Hybrid Journal   (Followers: 2, SJR: 1.092, h-index: 13)
Archives of Sexual Behavior     Hybrid Journal   (Followers: 10, SJR: 1.198, h-index: 74)
Archives of Toxicology     Hybrid Journal   (Followers: 17, SJR: 1.595, h-index: 76)
Archives of Virology     Hybrid Journal   (Followers: 5, SJR: 1.086, h-index: 90)
Archives of Women's Mental Health     Hybrid Journal   (Followers: 14, SJR: 1.264, h-index: 50)
Archivio di Ortopedia e Reumatologia     Hybrid Journal  
Archivum Immunologiae et Therapiae Experimentalis     Hybrid Journal   (Followers: 2, SJR: 1.2, h-index: 42)
ArgoSpine News & J.     Hybrid Journal   (SJR: 0.102, h-index: 3)
Argumentation     Hybrid Journal   (Followers: 5, SJR: 0.295, h-index: 18)
Arid Ecosystems     Hybrid Journal   (Followers: 2)
Arkiv för Matematik     Hybrid Journal   (Followers: 1, SJR: 0.948, h-index: 22)
Arnold Mathematical J.     Hybrid Journal   (Followers: 1)
Arthropod-Plant Interactions     Hybrid Journal   (Followers: 2, SJR: 0.797, h-index: 17)
Arthroskopie     Hybrid Journal   (Followers: 1, SJR: 0.145, h-index: 8)
Artificial Intelligence and Law     Hybrid Journal   (Followers: 11, SJR: 0.288, h-index: 25)
Artificial Intelligence Review     Hybrid Journal   (Followers: 14, SJR: 0.948, h-index: 48)
Artificial Life and Robotics     Hybrid Journal   (Followers: 9, SJR: 0.231, h-index: 14)
Asia Europe J.     Hybrid Journal   (Followers: 5, SJR: 0.247, h-index: 9)
Asia Pacific Education Review     Hybrid Journal   (Followers: 11, SJR: 0.371, h-index: 17)
Asia Pacific J. of Management     Hybrid Journal   (Followers: 16, SJR: 1.676, h-index: 50)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 12, SJR: 0.353, h-index: 13)
Asia-Pacific Financial Markets     Hybrid Journal   (Followers: 2, SJR: 0.19, h-index: 15)
Asia-Pacific J. of Atmospheric Sciences     Hybrid Journal   (Followers: 19, SJR: 1.006, h-index: 14)
Asian Business & Management     Hybrid Journal   (Followers: 9, SJR: 0.41, h-index: 10)
Asian J. of Business Ethics     Hybrid Journal   (Followers: 9)
Asian J. of Criminology     Hybrid Journal   (Followers: 5, SJR: 0.263, h-index: 8)
AStA Advances in Statistical Analysis     Hybrid Journal   (Followers: 2, SJR: 0.681, h-index: 15)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5, SJR: 0.195, h-index: 5)
ästhetische dermatologie & kosmetologie     Full-text available via subscription  

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Journal Cover Afrika Matematika
  [SJR: 0.248]   [H-I: 6]   [1 followers]  Follow
    
   Hybrid Journal Hybrid journal (It can contain Open Access articles)
   ISSN (Print) 1012-9405 - ISSN (Online) 2190-7668
   Published by Springer-Verlag Homepage  [2350 journals]
  • On the class of metrics g on $${\mathbb {S}}^2\times {\mathbb {S}}^2$$ S 2
           × S 2 conformal to the standard metric $$g_0$$ g 0 induced by $${\mathbb
           {R}}^6$$ R 6 and the Hopf conjecture
    • Authors: Athoumane Niang; Adama Thiandoum
      Pages: 29 - 32
      Abstract: The aim of this work is to prove that Hopf conjecture is true on the class of metrics g on \(M={\mathbb {S}}^2\times {\mathbb {S}}^2\) conformal to the standard metric \(g_0\) induced by \({\mathbb {R}}^6\) on M.
      PubDate: 2018-03-01
      DOI: 10.1007/s13370-017-0523-7
      Issue No: Vol. 29, No. 1-2 (2018)
       
  • Calculations of the drag coefficient of circular, square and rectangular
           cylinders using the lattice Boltzmann method with variable lattice speed
           of sound
    • Authors: Artem Ostapenko; Galina Bulanchuk
      Pages: 137 - 147
      Abstract: In this work, we studied the calculation of the drag coefficient using the lattice Boltzmann method with variable lattice speed of sound. The modified method of calculation the drag coefficient that includes the kinematic viscosity dependence was proposed. Calculations were based on the variable lattice speed of sound values that depend on the kinematic viscosity and the computational grid resolution. Shown the influence of the Reynolds number on the flow pattern and on the drag coefficient. The relation between the lattice Mach number and the computational grid resolution have been shown. The influence of the lattice Mach number on the accuracy of the numerical results was studied in detail. Shown that proposed method is more efficient because the researcher can set the kinematic viscosity of the fluid and the computational grid resolution at the same time. Therefore there is an opportunity to control the accuracy of the numerical results and the modeling time.
      PubDate: 2018-03-01
      DOI: 10.1007/s13370-017-0531-7
      Issue No: Vol. 29, No. 1-2 (2018)
       
  • Chebyshev polynomial coefficient estimates for a class of analytic
           bi-univalent functions related to pseudo-starlike functions
    • Authors: Nanjundan Magesh; Serap Bulut
      Pages: 203 - 209
      Abstract: In this paper, we obtain initial coefficient bounds for functions belong to a subclass of analytic bi-univalent functions related to pseudo-starlike functions by using the Chebyshev polynomials and also we find Fekete-Szegö inequalities for this class.
      PubDate: 2018-03-01
      DOI: 10.1007/s13370-017-0535-3
      Issue No: Vol. 29, No. 1-2 (2018)
       
  • A note on starlike functions associated with symmetric points
    • Authors: F. Al-Sarari; S. Latha; B. A. Frasin
      Abstract: The objective of the present paper is to study results that are defined using the notions of generalization of Janowski classes and k-symmetrical functions. A representation theorem, coefficients inequality, distortion properties and the result on radius of starlikeness are discussed.
      PubDate: 2018-04-27
      DOI: 10.1007/s13370-018-0593-1
       
  • Solution of the energy concentration problem and application
    • Authors: Tahar Moumni
      Abstract: In this paper, we show that the generalized prolate spheroidal wave functions (GPSWFs), called sometimes Slepian’s functions, can be defined as the most concentrated functions among functions in some reproducing kernel Hilbert spaces (RKHS for short). As a consequence, we use them the GPSWFs to approximate the sets of K-bandlimited functions that are essentially time limited to an interval (a, b).
      PubDate: 2018-04-25
      DOI: 10.1007/s13370-018-0581-5
       
  • On band orthodox semirings
    • Authors: R. Debnath
      Abstract: A semiring S is called a band orthodox semiring if \(E^+(S)\) of all additive idempotents of S is a band semiring. Here we show that every band orthodox semiring is a subdirect product of a left band orthodox semiring and a right band orthodox semiring. Also we introduce the concept of quasi-spined product of a left normal band semiring and a d-inversive semiring with respect to a distributive lattice to study the structure of left normal band orthodox semirings.
      PubDate: 2018-04-25
      DOI: 10.1007/s13370-018-0587-z
       
  • n -Fold Heyting, Boolean and pseudo-MV filters in residuated lattices
    • Authors: Saeed Rasouli; Zeinab Zarin
      Abstract: This paper is devoted to introduce the notions of n-fold left-(right-)Heyting, n-fold left-(right-)Boolean and n-fold left-(right-)MV filters in residuated lattices and to investigate their properties. Several characterizations of these notions are derived. The relations between n-fold left-(right-)Boolean filters and n-fold left-(right-)Heyting filters are investigated and we prove that an n-fold left-(right-)Boolean filter is an n-fold left-(right-)Heyting filter, respectively, and this implication is strict. Also, the relations between n-fold left-(right-)Boolean filters and n-fold left-(right-)MV filters are investigated and we show that a normal n-fold left-(right-)Boolean filter is a normal n-fold left-(right-)MV filter and each n-fold left-(right-)Heyting and n-fold left-(right-)MV filter is an n-fold left-(right-)Boolean filter.
      PubDate: 2018-04-24
      DOI: 10.1007/s13370-018-0592-2
       
  • Boundedness and stability in third order nonlinear vector differential
           equations with bounded delay
    • Authors: Lynda D. Oudjedi; Moussadek Remili
      Abstract: In this paper, we investigate asymptotic stability of solutions of some nonlinear vector differential equations of third order with delay. Our results include and improve some well-known results in the literature.
      PubDate: 2018-04-20
      DOI: 10.1007/s13370-018-0590-4
       
  • A generalization of $$(\in , \in \vee q)$$ ( ∈ , ∈ ∨ q ) -fuzzy
           ternary subsemigroups
    • Authors: Noor Rehman; Jeong Gi Kang; Young Bae Jun
      Abstract: Using more general form of quasi-coincident fuzzy points, the notion of \(({\tilde{\alpha }},\) \({\tilde{\beta }})\) -fuzzy ternary subsemigroups is introduced. Several properties are discussed. Characterizations of \((\in ,\) \(\in \! \vee \, q^{\delta }_0)\) -fuzzy ternary subsemigroups are considered. Relations between \((\in ,\) \(\in )\) -fuzzy ternary subsemigroups and \((\in ,\) \(\in \! \vee \, q^{\delta }_0)\) -fuzzy ternary subsemigroups are provided.
      PubDate: 2018-04-16
      DOI: 10.1007/s13370-018-0586-0
       
  • Approximations of bipolar fuzzy $$\Gamma $$ Γ -hyperideals of $$\Gamma $$
           Γ -semihypergroups
    • Authors: Naveed Yaqoob; Inayatur Rehman; Muhammad Aslam
      Abstract: This paper studies relationship between bipolar fuzzy sets, rough sets and \(\Gamma \) -semihypergroups. We study the notion of rough bipolar fuzzy \(\Gamma \) -hyperideals in \(\Gamma \) -semihypergroups. Then we prove that the lower and upper approximation of a bipolar fuzzy \(\Gamma \) -hyperideal is a bipolar fuzzy \(\Gamma \) -hyperideal.
      PubDate: 2018-04-09
      DOI: 10.1007/s13370-018-0585-1
       
  • Superstability of a Van Vleck’s type functional equation for the
           sine
    • Authors: F. Lehlou; M. Moussa; A. Roukbi; S. Kabbaj
      Abstract: Let G be a group and let a be a fixed element of G, not necessarily belongs to the center of G. In this paper we study the superstability of the following functional equations $$\begin{aligned} f(ax\sigma (y))-f(axy)=2f(x)g(y),\quad x,\ y\in G, \end{aligned}$$ and $$\begin{aligned} f(ax\sigma (y))-f(axy)=2g(x)h(y),\quad x,\ y\in G, \end{aligned}$$ where \(\sigma : G \rightarrow G\) is an involution and f, g, h are unknown complex valued functions.
      PubDate: 2018-04-07
      DOI: 10.1007/s13370-018-0584-2
       
  • Mathematical model of fish, birds and tourists in wetlands: the impact of
           periodic fluctuations on the coexistence of species
    • Authors: Oumar Diop; Abdou Sène
      Abstract: The present paper deals with a harvested predator–prey model and the dynamics of tourists in wetlands. This model describes the coexistence and extinction of at least one of the species in the wetlands. By the Mahwin continuation theorem of coincidence degree theory, we prove the existence of a positive periodic solution (in place of an equilibrium) provided that the harvest rate of prey is in a suitable range. Further, by constructing a suitable Lyapunov functional, we obtain sufficient conditions for global asymptotic stability of the positive periodic solution. Finally numerical simulations are carried out to illustrate the feasibility of the mathematical results.
      PubDate: 2018-04-06
      DOI: 10.1007/s13370-018-0583-3
       
  • Bipolar soft rough sets and their applications in decision making
    • Authors: Faruk Karaaslan; Naim Çağman
      Abstract: In this study, concept of bipolar soft rough sets and set theoretical operations of bipolar soft rough sets are defined, and some of their properties are obtained. Also, a decision making method based on operations of bipolar soft rough sets is proposed to choose optimum element among alternatives. Finally, an illustrative example is given to show the method can be successfully applied to some problems.
      PubDate: 2018-03-29
      DOI: 10.1007/s13370-018-0580-6
       
  • Subordinating results for p -valent functions associated with the
           Srivastava–Saigo–Owa fractional differintegral operator
    • Authors: A. O. Mostafa; M. K. Aouf; H. M. Zayed
      Abstract: In this paper, by making use of the principle of subordination, we investigate some subordination and convolution properties of certain subclasses of \(\ p\) -valent analytic functions which are defined by the Srivastava–Saigo–Owa fractional differintegral operator.
      PubDate: 2018-03-24
      DOI: 10.1007/s13370-018-0582-4
       
  • Epiregular topological spaces
    • Authors: Samirah A. AlZahrani
      Abstract: A topological space (X, \(\tau \) ) is called epiregular if there is a coarser topology \(\tau \) \(^\prime \) on X such that (X, \(\tau \) \(^\prime )\) is \(T_3\) . We investigate this property and present some examples to illustrate the relationships between epiregular, epinormal, submetrizable, semiregular and almost regular.
      PubDate: 2018-03-21
      DOI: 10.1007/s13370-018-0577-1
       
  • Unpredictability of initial coefficient bounds for m -fold symmetric
           bi-univalent starlike and convex functions defined by subordinations
    • Authors: Murat Çağlar; Palpandy Gurusamy; Erhan Deniz
      Abstract: In this paper, we introduce certain new subclasses of the bi-univalent function class \(\sigma \) in which both f and \(f^{-1}\) are m-fold symmetric analytic with their derivatives in the class \({\mathcal {P}}\) of analytic functions. Furthermore, we obtain coefficient bounds of \( a_{m+1} \) and \( a_{2m+1} \) for these new subclasses.
      PubDate: 2018-03-21
      DOI: 10.1007/s13370-018-0578-0
       
  • Iteration process for solving a fixed point problem of nonexpansive
           mappings in Banach spaces
    • Authors: Sirintra Khoonyang; Mintra Inta; Prasit Cholamjiak
      Abstract: In this work, we introduce a new iteration process for solving the fixed point problem of a finite family of nonexpansive mappings. We then prove, in Banach spaces, the strong convergence theorem under some mild conditions. Finally, we give some numerical results to support our main result.
      PubDate: 2018-03-20
      DOI: 10.1007/s13370-018-0579-z
       
  • Fekete–Szegö problem for a class of $$\lambda $$ λ -convex and $$\mu
           $$ μ -starlike functions associated with k -th root transformation using
           quasi-subordination
    • Authors: N. Magesh; V. K. Balaji
      Abstract: In this paper, we obtain the estimates with k-th root transformation for certain classes of analytic univalent functions using quasi-subordination. Some interesting remarks of the results presented here are also discussed.
      PubDate: 2018-03-07
      DOI: 10.1007/s13370-018-0575-3
       
  • Steady fully developed non-Darcian mixed convection flow in an annulus
           partially filled with porous material
    • Authors: Basant K. Jha; Abbas Suleiman; Muhammad L. Kaurangini
      Abstract: In the present work, analytical solutions are developed to simulate the steady mixed convection flow in an annulus partially filled with porous material. Flow formation inside an annulus is due to temperature as well as pressure gradients. The Brinkman-extended Darcy model is used to simulate momentum transfer in the porous region while the Navier–Stokes equation is used to simulate the momentum transfer in the clear fluid region. The clear fluid and porous regions are coupled by equating the velocity, temperature, heat flux and by considering shear stress jump condition at the interface. The goal of the present work is to investigate the impact of dimensionless parameters controlling the present physical situation on the onset of flow reversal at the outer surface of the inner vertical cylinder and the inner surface of the outer vertical cylinder forming the annulus. A dimensionless temperature \( \theta_{0} \) is introduced. Moreover, this quantity is related to the usual Gr/Re parameter. Exact solutions for momentum and energy equations are obtained. Expressions for the fully developed velocity, temperature and mass flux are given. The impact of porous thickness and the adjustable coefficient in the stress-jump condition at the interface on flow formation inside the annulus is extensively discussed.
      PubDate: 2018-03-02
      DOI: 10.1007/s13370-018-0573-5
       
  • PD-sets for the codes from incidence matrices of triangular graphs
    • Authors: Washiela Fish; Khumbo Kumwenda; Eric Mwambene
      Abstract: We exhibit PD-sets for the binary and non-binary codes generated by incidence matrices of triangular graphs \(T_n\) where \(n\ge 5\) .
      PubDate: 2018-03-02
      DOI: 10.1007/s13370-018-0576-2
       
 
 
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