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  Subjects -> EDUCATION (Total: 2211 journals)
    - ADULT EDUCATION (25 journals)
    - COLLEGE AND ALUMNI (9 journals)
    - E-LEARNING (30 journals)
    - EDUCATION (1881 journals)
    - HIGHER EDUCATION (136 journals)
    - INTERNATIONAL EDUCATION PROGRAMS (4 journals)
    - ONLINE EDUCATION (35 journals)
    - SCHOOL ORGANIZATION (13 journals)
    - SPECIAL EDUCATION AND REHABILITATION (39 journals)
    - TEACHING METHODS AND CURRICULUM (39 journals)

EDUCATION (1881 journals)                  1 2 3 4 5 6 7 8 | Last

Showing 1 - 200 of 857 Journals sorted alphabetically
#Tear : Revista de Educação, Ciência e Tecnologia     Open Access   (Followers: 3)
(Pensamiento), (palabra) y obra     Open Access   (Followers: 2)
21. Yüzyılda Eğitim Ve Toplum Eğitim Bilimleri Ve Sosyal Araştırmalar Dergisi     Open Access  
21st Century Pedagogy     Open Access  
@tic. revista d'innovació educativa     Open Access  
Abant İzzet Baysal Üniversitesi Eğitim Fakültesi Dergisi     Open Access   (Followers: 2)
ABDIMAS ALTRUIS : Jurnal Pengabdian Kepada Masyarakat     Open Access  
About Campus     Hybrid Journal   (Followers: 6)
Academic Medicine     Hybrid Journal   (Followers: 63)
Academic Psychiatry     Full-text available via subscription   (Followers: 28)
Academic Questions     Hybrid Journal   (Followers: 8)
Academy of Educational Leadership Journal     Full-text available via subscription   (Followers: 60)
Academy of Management Learning and Education     Full-text available via subscription   (Followers: 59)
Accounting & Finance     Hybrid Journal   (Followers: 55)
Accounting Education: An International Journal     Hybrid Journal   (Followers: 22)
Açıköğretim Uygulamaları ve Araştırmaları Dergisi     Open Access  
ACM Transactions on Computing Education (TOCE)     Hybrid Journal   (Followers: 8)
Acta Didactica Norge     Open Access   (Followers: 2)
Acta Educationis Generalis     Open Access  
Acta Paedagogica Vilnensia     Open Access  
Acta Scientiarum. Education     Open Access  
Action in Teacher Education     Hybrid Journal   (Followers: 67)
Action Learning: Research and Practice     Hybrid Journal   (Followers: 41)
Action Research     Hybrid Journal   (Followers: 48)
Active Learning in Higher Education     Hybrid Journal   (Followers: 315)
Actualidades Pedagógicas     Open Access  
Adelphi series     Hybrid Journal   (Followers: 14)
Adiyaman University Journal of Educational Sciences     Open Access   (Followers: 1)
Administração Educacional     Open Access  
Administration & Society     Hybrid Journal   (Followers: 13)
Administrative Science Quarterly     Full-text available via subscription   (Followers: 194)
Adult Education Quarterly     Hybrid Journal   (Followers: 187)
Advanced Education     Open Access   (Followers: 14)
Advances in Building Education     Open Access   (Followers: 4)
Advances in Health Sciences Education     Hybrid Journal   (Followers: 32)
Advances in High Energy Physics     Open Access   (Followers: 22)
Advances in School Mental Health Promotion     Partially Free   (Followers: 9)
AERA Open     Open Access   (Followers: 8)
Africa Education Review     Partially Free   (Followers: 25)
African Journal of Chemical Education     Open Access   (Followers: 4)
African Journal of Educational Studies in Mathematics and Sciences     Full-text available via subscription   (Followers: 7)
African Journal of Health Professions Education     Open Access   (Followers: 6)
African Journal of Research in Mathematics, Science and Technology Education     Full-text available via subscription   (Followers: 9)
Agora     Full-text available via subscription   (Followers: 5)
AGORA Magazine     Open Access  
Ahi Evran Üniversitesi Kırşehir Eğitim Fakültesi Dergisi     Open Access  
Ahmad Dahlan Journal of English Studies     Open Access   (Followers: 2)
AIDS Education and Prevention     Full-text available via subscription   (Followers: 8)
Ainedidaktiikka     Open Access  
Akadémiai Értesítö     Full-text available via subscription  
Akademos     Open Access  
Aksiologiya : Jurnal Pengabdian Kepada Masyarakat     Open Access  
AKSIOMA Journal of Mathematics Education     Open Access   (Followers: 2)
Aksis : Jurnal Pendidikan Bahasa dan Sastra Indonesia     Open Access  
Al-Idarah : Jurnal Kependidikan Islam     Open Access  
Al-Jabar : Jurnal Pendidikan Matematika     Open Access   (Followers: 1)
Al-Mudarris : Journal of Education     Open Access   (Followers: 1)
Al-Tadris : Jurnal Pendidikan Bahasa Arab     Open Access  
Al-Tadzkiyyah : Jurnal Pendidikan Islam     Open Access  
Alan Eğitimi Araştırmaları Dergisi     Open Access  
Alexandria : Revista de Educação em Ciência e Tecnologia     Open Access  
Alotrop     Open Access  
Alsic : Apprentissage des Langues et Systèmes d'Information et de Communication     Open Access   (Followers: 16)
Alteridad     Open Access  
Amasya Universitesi Egitim Fakültesi Dergisi     Open Access  
Ambiente & Educação : Revista de Educação Ambiental     Open Access  
American Annals of the Deaf     Full-text available via subscription   (Followers: 13)
American Educational Research Journal     Hybrid Journal   (Followers: 183)
American Journal of Business Education     Open Access   (Followers: 13)
American Journal of Distance Education     Hybrid Journal   (Followers: 35)
American Journal of Education     Full-text available via subscription   (Followers: 223)
American Journal of Educational Research     Open Access   (Followers: 64)
American Journal of Health Education     Hybrid Journal   (Followers: 32)
American Journal of Physics     Full-text available via subscription   (Followers: 54)
American String Teacher     Full-text available via subscription   (Followers: 2)
Ana Dili Eğitimi Dergisi / Journal of Mother Tongue Education     Open Access  
Anadolu Journal Of Educational Sciences International     Open Access  
Anadolu University Journal of Education Faculty     Open Access  
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 3)
Annales Universitatis Mariae Curie-Sklodowska, sectio N – Educatio Nova     Open Access  
Annali dell'Universita di Ferrara     Hybrid Journal  
Annals of Dyslexia     Hybrid Journal   (Followers: 10)
Annals of Modern Education     Full-text available via subscription   (Followers: 5)
Anuario Pilquen : Sección Divulgación Científica     Open Access  
Apertura. Revista de innovación educativa‏     Open Access   (Followers: 2)
Apex : New Zealand Journal of Gifted Children     Open Access   (Followers: 1)
Applied Environmental Education & Communication     Hybrid Journal   (Followers: 17)
Applied Measurement in Education     Hybrid Journal   (Followers: 10)
AR-RIAYAH : Jurnal Pendidikan Dasar     Open Access  
Arabia     Open Access  
Arabiyatuna : Jurnal Bahasa Arab     Open Access  
Archivos de Ciencias de la Educación     Open Access   (Followers: 1)
Areté, Revista Digital del Doctorado en Educación de la Universidad Central de Venezuela     Open Access  
Art Design & Communication in Higher Education     Hybrid Journal   (Followers: 24)
Arts and Humanities in Higher Education     Hybrid Journal   (Followers: 37)
Arts Education Policy Review     Hybrid Journal   (Followers: 5)
Artseduca : Revista electrónica de educación en las ARTES     Open Access  
ASHE Higher Education Reports     Hybrid Journal   (Followers: 19)
Asia Pacific Education Review     Hybrid Journal   (Followers: 13)
Asia Pacific Journal of Education     Hybrid Journal   (Followers: 22)
Asia-Pacific Education Researcher     Hybrid Journal   (Followers: 13)
Asia-Pacific Journal of Health, Sport and Physical Education     Hybrid Journal   (Followers: 9)
Asia-Pacific Journal of Teacher Education     Hybrid Journal   (Followers: 26)
Asian Association of Open Universities Journal     Open Access   (Followers: 1)
Asian Education and Development Studies     Hybrid Journal   (Followers: 6)
Asian Journal of English Language Teaching     Full-text available via subscription   (Followers: 14)
Asian Journal of Legal Education     Full-text available via subscription   (Followers: 4)
ASp     Open Access   (Followers: 3)
Assessing Writing     Hybrid Journal   (Followers: 11)
Assessment & Evaluation in Higher Education     Hybrid Journal   (Followers: 171)
Assessment for Effective Intervention     Hybrid Journal   (Followers: 14)
Assessment in Education: Principles, Policy & Practice     Hybrid Journal   (Followers: 45)
Assessment Update     Hybrid Journal   (Followers: 5)
AStA Wirtschafts- und Sozialstatistisches Archiv     Hybrid Journal   (Followers: 5)
At-Ta'dib Jurnal Kependidikan Islam     Open Access  
At-Taqaddum     Open Access  
At-Turats     Open Access  
Atenas : Revista Científico Pedagógica     Open Access   (Followers: 1)
Athenea Digital     Open Access  
ATIKAN : Jurnal Kajian Pendidikan (Journal of Educational Studies)     Open Access  
Aula Abierta     Open Access   (Followers: 1)
Aula de Encuentro     Open Access  
Australasian Journal of Educational Technology     Open Access   (Followers: 20)
Australasian Journal of Gifted Education     Full-text available via subscription   (Followers: 6)
Australasian Marketing Journal (AMJ)     Hybrid Journal   (Followers: 4)
Australian Art Education     Full-text available via subscription   (Followers: 8)
Australian Educational and Developmental Psychologist, The     Full-text available via subscription   (Followers: 9)
Australian Educational Computing     Open Access   (Followers: 1)
Australian Educational Researcher     Hybrid Journal   (Followers: 30)
Australian Journal of Adult Learning     Full-text available via subscription   (Followers: 16)
Australian Journal of Career Development     Hybrid Journal   (Followers: 3)
Australian Journal of Dyslexia and Learning Difficulties     Full-text available via subscription   (Followers: 8)
Australian Journal of Education     Hybrid Journal   (Followers: 41)
Australian Journal of Environmental Education     Full-text available via subscription   (Followers: 8)
Australian Journal of Indigenous Education, The     Full-text available via subscription   (Followers: 10)
Australian Journal of Learning Difficulties     Hybrid Journal   (Followers: 5)
Australian Journal of Music Education     Full-text available via subscription   (Followers: 4)
Australian Journal of Public Administration     Hybrid Journal   (Followers: 470)
Australian Journal of Teacher Education     Open Access   (Followers: 27)
Australian Mathematics Teacher, The     Full-text available via subscription   (Followers: 7)
Australian Primary Mathematics Classroom     Full-text available via subscription   (Followers: 5)
Australian Screen Education Online     Full-text available via subscription   (Followers: 3)
Australian TAFE Teacher     Full-text available via subscription   (Followers: 4)
Australian Universities' Review, The     Full-text available via subscription   (Followers: 4)
Autism     Hybrid Journal   (Followers: 300)
Avaliação : Revista da Avaliação da Educação Superior (Campinas)     Open Access  
Azalea: Journal of Korean Literature & Culture     Full-text available via subscription   (Followers: 4)
Bahastra     Open Access  
Balkan Region Conference on Engineering and Business Education     Open Access   (Followers: 2)
Barn : Forskning om barn og barndom i Norden     Open Access   (Followers: 1)
BC TEAL Journal     Open Access  
BELAJEA : Jurnal Pendidikan Islam     Open Access  
BELIA : Early Childhood Education Papers     Open Access   (Followers: 9)
BELT - Brazilian English Language Teaching Journal     Open Access   (Followers: 4)
Berkeley Review of Education     Open Access   (Followers: 8)
Biblioteca Escolar em Revista     Open Access  
Biblioteka i Edukacja     Open Access   (Followers: 4)
Bildung und Erziehung     Hybrid Journal   (Followers: 5)
Bio-Lectura     Open Access  
Bioedukasi : Jurnal Pendidikan Biologi FKIP UM Metro     Open Access  
Bioma : Jurnal Ilmiah Biologi     Open Access  
Biosaintifika : Journal of Biology & Biology Education     Open Access   (Followers: 7)
Biosfer : Jurnal Biologi dan Pendidikan Biologi     Open Access  
Biosfer : Jurnal Tadris Biologi     Open Access  
Biuletyn Historii Wychowania     Open Access  
BMC Medical Education     Open Access   (Followers: 46)
BMJ Simulation & Technology Enhanced Learning     Hybrid Journal   (Followers: 10)
Boletim Cearense de Educação e História da Matemática     Open Access  
Boletim de Educação Matemática     Open Access  
Boletim Técnico do Senac     Open Access  
British Educational Research Journal     Hybrid Journal   (Followers: 211)
British Journal of Educational Studies     Hybrid Journal   (Followers: 177)
British Journal of Educational Technology     Hybrid Journal   (Followers: 177)
British Journal of Music Education     Hybrid Journal   (Followers: 24)
British Journal of Religious Education     Hybrid Journal   (Followers: 9)
British Journal of Sociology of Education     Hybrid Journal   (Followers: 61)
British Journal of Special Education     Hybrid Journal   (Followers: 49)
British Journal of Visual Impairment     Hybrid Journal   (Followers: 12)
Brookings Trade Forum     Full-text available via subscription   (Followers: 3)
Buletin Fisika     Open Access  
Bulletin of the Council for Research in Music Education     Full-text available via subscription   (Followers: 6)
Business, Management and Education     Open Access   (Followers: 19)
Caderno Brasileiro de Ensino de Física     Open Access  
Caderno de Educação     Open Access  
Caderno Intersabares     Open Access  
Cadernos CEDES     Open Access   (Followers: 1)
Cadernos de Educação     Open Access  
Cadernos de Estudos e Pesquisa na Educação Básica     Open Access  
Cadernos de Pesquisa     Open Access  
Cadernos de Pesquisa     Open Access   (Followers: 2)
Cadernos de Pesquisa em Educação     Open Access   (Followers: 1)
Cadmo     Full-text available via subscription   (Followers: 1)
Cahiers de la recherche sur l'éducation et les savoirs     Open Access   (Followers: 4)
Cakrawala Pendidikan     Open Access  
Calidad en la educación     Open Access   (Followers: 1)
Cambridge Journal of Education     Hybrid Journal   (Followers: 97)
Campus Legal Advisor     Hybrid Journal   (Followers: 2)
Campus Security Report     Hybrid Journal  
Canadian and International Education     Open Access   (Followers: 9)
Canadian Journal for New Scholars in Education/ Revue canadienne des jeunes chercheures et chercheurs en éducation     Open Access   (Followers: 7)

        1 2 3 4 5 6 7 8 | Last

Similar Journals
Journal Cover
Annali dell'Universita di Ferrara
Journal Prestige (SJR): 0.429
Number of Followers: 0  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 0430-3202 - ISSN (Online) 1827-1510
Published by Springer-Verlag Homepage  [2351 journals]
  • New perspectives of granular computing in relation geometry induced by
           pairings
    • Abstract: Given an arbitrary set \(\Omega \) , we call a triple \({\mathfrak {P}}=(U,F, \Lambda )\) , where U and \(\Lambda \) are two non-empty sets and F is a map from \(U\times \Omega \) into \(\Lambda \) , a pairing on \(\Omega \) . A pairing is an abstract mathematical generalization of the notion of information table, classically used in several scopes of granular computing and rough set theory. In this paper we undertake the study of pairings in relation to specific types of set operators, set systems and binary relations appearing in several branches of pure mathematics and information sciences. For example, an intersection-closed system \(MAXP({\mathfrak {P}})\) on \(\Omega \) can be canonically associated with any pairing \({\mathfrak {P}}\) on \(\Omega \) and we showed that for any intersection-closed system \(\mathfrak {S}\) on an arbitrary (even infinite) set \(\Omega \) there exists a pairing \({\mathfrak {P}}\) on \(\Omega \) such that \(MAXP({\mathfrak {P}})=\mathfrak {S}\) . Next, we introduce some classes of pairings whose properties have a close analogy with corresponding notions derived from topology and matroid theory. We describe such classifications by means of a binary relation \(\leftarrow _{{\mathfrak {P}}}\) on the power set \(\mathcal {P}(\Omega )\) canonically associated with any pairing \({\mathfrak {P}}\) . Using such a relation, we analyze new properties of intersection-closed systems and related operators, both within concrete models induced by metric spaces and also in connection with basic notions of common interest in several scopes of pure and applied mathematics and information sciences.
      PubDate: 2019-02-19
       
  • Zero-cycles on Cancian–Frapporti surfaces
    • Abstract: Abstract An old conjecture of Voisin describes how 0-cycles on a surface S should behave when pulled-back to the self-product \(S^m\) for \(m>p_g(S)\) . We show that Voisin’s conjecture is true for a 3-dimensional family of surfaces of general type with \(p_g=q=2\) and \(K^2=7\) constructed by Cancian and Frapporti, and revisited by Pignatelli–Polizzi.
      PubDate: 2019-01-29
       
  • Klein–Gordon equations with homogeneous time-dependent electric
           fields
    • Abstract: Abstract We consider a system associated to Klein–Gordon equations with homogeneous time-dependent electric fields. The upper and lower boundaries of a time-evolution propagator for this system were proven by Veselić (J Oper Theory 25:319–330, 1991) for electric fields that are independent of time. We extend this result to time-dependent electric fields.
      PubDate: 2018-11-01
       
  • Global existence for the nonlinear fractional Schrödinger equation
           with fractional dissipation
    • Abstract: Abstract We consider the initial value problem for the fractional nonlinear Schrödinger equation with a fractional dissipation. Global existence and scattering are proved depending on the order of the fractional dissipation.
      PubDate: 2018-11-01
       
  • Remarks on uniform bundles on projective spaces
    • Abstract: Abstract On projective spaces of dimension \(d\ge 2\) defined over a field of positive characteristic we construct rank \(d+1\) uniform toric but non-homogeneous bundles, which do not exists in characteristic zero. These bundles are obtained by choosing suitable equivariant extensions of the Frobenius pullbacks of \(T_{\mathbb {P}^d}\) by a line bundle.
      PubDate: 2018-11-01
       
  • New P – Q mixed modular equations and their applications
    • Abstract: Abstract In his second notebook, Ramanujan recorded total of seven P–Q modular equations involving theta-function \(f(-q)\) with moduli of orders 1, 3, 5 and 15. In this paper, modular equations analogous to those recorded by Ramanujan are obtained for higher orders. As a consequence, several values of quotients of theta-function are evaluated. The cubic singular modulus is evaluated at \(q=\exp (-2\pi \sqrt{n/3})\) for \(n\in \{5k, 1/5k, 5/k, k/5\}\) , where \(k\in \{4,7,16\}\) .
      PubDate: 2018-11-01
       
  • Initial-boundary value problem of the Navier–Stokes equations in the
           half space with nonhomogeneous data
    • Abstract: Abstract This paper discusses the solvability (global in time) of the initial-boundary value problem of the Navier–Stokes equations in the half space when the initial data \( h\in {\dot{B}}_{q \sigma }^{\alpha -\frac{2}{q}}({{\mathbb {R}}}^n_+)\) and the boundary data \( g\in \dot{ B}_q^{\alpha -\frac{1}{q},\frac{\alpha }{2}-\frac{1}{2q}}({{\mathbb {R}}}^{n-1}\times {\mathbb R}_+) \) with \(g_n\in \dot{B}^{\frac{1}{2} \alpha }_q ({{\mathbb {R}}}_+; \dot{B}^{-\frac{1}{q}}_q ({{\mathbb {R}}}^{n-1}))\cap L^q({\mathbb R}_+;{\dot{B}}^{\alpha -\frac{1}{q}}({{\mathbb {R}}}^{n-1}))\) , for any \(0<\alpha <2\) and \(q =\frac{n+2}{\alpha +1}\) . Compatibility condition (1.3) is required for h and g.
      PubDate: 2018-11-01
       
  • On local Gevrey regularity for Gevrey vectors of subelliptic sums of
           squares: an elementary proof of a sharp Gevrey Kotake–Narasimhan theorem
           
    • Abstract: Abstract We study the regularity of Gevrey vectors for Hörmander operators $$\begin{aligned} P = \sum _{j=1}^m X_j^2 + X_0 + c \end{aligned}$$ where the \(X_j\) are real vector fields and c(x) is a smooth function, all in Gevrey class \(G^{s}.\) The principal hypothesis is that P satisfies the subelliptic estimate: for some \(\varepsilon >0, \; \exists \,C\) such that $$\begin{aligned} \Vert v\Vert _{\varepsilon }^2 \le C\left( (Pv, v) + \Vert v\Vert _0^2\right) \qquad \forall v\in C_0^\infty . \end{aligned}$$ We prove directly (without the now familiar use of adding a variable t and proving suitable hypoellipticity for \(Q=-D_t^2-P\) and then, using the hypothesis on the iterates of P on u,  constructing a homogeneous solution U for Q whose trace on \(t=0\) is just u) that for \(s\ge 1,\)   \(G^s(P,\Omega _0) \subset G^{s/\varepsilon }(\Omega _0);\) that is, $$\begin{aligned}&\forall K\Subset \Omega _0, \;\exists C_K: \Vert P^j u\Vert _{L^2(K)}\le C_K^{j+1} (2j)!^s, \;\forall j\\&\quad \implies \forall K'\Subset \Omega _0, \;\exists \tilde{C}_{K'}:\,\Vert D^\ell u\Vert _{L^2(K')} \le \tilde{C}_{K'}^{\ell +1} \ell !^{s/\varepsilon }, \;\forall \ell . \end{aligned}$$ In other words, Gevrey growth of derivatives of u as measured by iterates of P yields Gevrey regularity for u in a larger Gevrey class. When \(\varepsilon =1,\) P is elliptic and so we recover the original Kotake–Narasimhan theorem (Kotake and Narasimhan in Bull Soc Math Fr 90(12):449–471, 1962), which has been studied in many other classes, including ultradifferentiable functions (Boiti and Journet in J Pseudo-Differ Oper Appl 8(2):297–317, 2017). We are indebted to M. Derridj for multiple conversations over the years.
      PubDate: 2018-11-01
       
  • Direct and inverse problems for degenerate differential equations
    • Abstract: We are concerned with a general abstract equation that allows to handle various degenerate first and second order differential equations in Banach spaces. We indicate sufficient conditions for existence and uniqueness of a solution. Periodic conditions are assumed to improve previous approaches on the abstract problem to work on \((-\infty ,\infty )\) . Related inverse problems are discussed, too. All general results are applied to some systems of partial differential equations. Inverse problems for degenerate evolution integro-differential equations might be described, too.
      PubDate: 2018-11-01
       
  • Uncertainty principles and time frequency analysis related to the
           Riemann–Liouville operator
    • Abstract: Abstract We define and study the windowed Fourier transform, called also the Gabor transform, associated with singular partial differential operators defined on the half plane \(]0,+\infty [\times \mathbb {R}\) . We prove a Plancherel theorem and an inversion formula that we use to establish the classical Heisenberg uncertainty principle. Next, we study this transform on subsets of \(([0,+\infty [\times \mathbb {R})^2\) with finite measures, in particular we establish a well generalized Heisenberg–Pauli–Weyl uncertainty principle for this transform (with general magnitude). Also, we check a local uncertainty principle and we give nice applications.
      PubDate: 2018-10-29
       
  • An analog of Titchmarsh’s theorem for the q -Bessel transform
    • Abstract: Abstract In this paper, we prove an analog of Titchmarsh’s theorem for the q-Bessel Fourier transform using a generalized q-translation operator. Using the q-Bessel operator we define the Sobolev-type spaces, K-functionals and we give the proof of the equivalence theorem for a K-functional and a modulus of smoothness.
      PubDate: 2018-10-04
       
  • Boundary behaviour of hypersingular potentials
    • Abstract: Abstract In this article we study the boundary behaviour of surface potentials on the plane \(\mathbb {R}^{n-1}\) ( \(n\ge 2\) ) with hypersingular kernels. We show the existence of pointwise and “weak” one-sided limits for such hypersingular integrals. The pointwise result will be also expressed in terms of Hadamard finite-part integrals. Moreover, we determine a two-sided jump relation which yields necessary and sufficient conditions for the validity of a Lyapunov–Tauber property. The paper ends with some applications to harmonic, elastic and Stokes potentials.
      PubDate: 2018-10-01
       
  • A note on regularity of the pressure in the Navier–Stokes system
    • Authors: Sanja Friganović
      Abstract: Abstract In this note we improve the standard regularity of the dynamic part of the pressure in the Navier–Stokes system. Using the theory of elliptic equations with \(L^1\) right-hand side we prove that, in addition to be in \(L^2\) , the dynamic pressure belongs to \(W^{1,\alpha }_{loc} \) with \(1<\alpha <\frac{n}{n-1}\) , in case of Dirichlet boundary condition. For pressure boundary condition the dynamic pressure is proved to be in \(W^{1,\alpha } \) . As a consequence, for the force \(\mathbf{f} \in L^q (\Omega )^n \) and \(q>n /2 \) the pressure turns out to be continuous.
      PubDate: 2018-05-11
      DOI: 10.1007/s11565-018-0302-x
       
  • Stable hypersurfaces via the first eigenvalue of the anisotropic Laplacian
           operator
    • Authors: Jonatan Floriano da Silva; Henrique Fernandes de Lima; Marco Antonio Lázaro Velásquez
      Abstract: Abstract In this paper we provide a characterization for stable hypersurfaces with constant anisotropic mean curvature immersed in the Euclidean space \(\mathbb {R}^{n+1}\) through the analysis of the first eigenvalue of the anisotropic Laplacian operator.
      PubDate: 2018-04-11
      DOI: 10.1007/s11565-018-0301-y
       
  • Effective adjunction theory
    • Authors: Marco Andreatta; Claudio Fontanari
      Abstract: Abstract Here we investigate the property of effectivity for adjoint divisors. Among others, we prove the following results: A projective variety X with at most canonical singularities is uniruled if and only if for each very ample Cartier divisor H on X we have \(H^0(X, m_0K_X+H)=0\) for some \(m_0=m_0(H)>0\) . Let X be a projective 4-fold, L an ample divisor and t an integer with \(t \ge 3\) . If \(K_X+tL\) is pseudo-effective, then \(H^0(X, K_X+tL) \ne 0\) .
      PubDate: 2018-02-09
      DOI: 10.1007/s11565-018-0300-z
       
  • On $$\mathcal {SSH}$$ SSH -subgroups of finite groups
    • Authors: T. M. Al-Gafri; S. K. Nauman
      Abstract: Abstract Let G be a finite group. A subgroup H of G is s-permutable in G if H permutes with every Sylow subgroup of G. A subgroup H of G is called an \(\mathcal {SSH}\) -subgroup in G if G has an s-permutable subgroup K such that \(H^{sG} = HK\) and \(H^g \cap N_K (H) \leqslant H\) , for all \(g \in G\) , where \(H^{sG}\) is the intersection of all s-permutable subgroups of G containing H. We study the structure of finite groups under the assumption that the maximal or the minimal subgroups of Sylow subgroups of some normal subgroups of G are \(\mathcal {SSH}\) -subgroups in G. Several recent results from the literature are improved and generalized.
      PubDate: 2018-02-05
      DOI: 10.1007/s11565-018-0299-1
       
  • Comparing predator–prey models with hidden and explicit resources
    • Authors: Luciana Mafalda Elias de Assis; Malay Banerjee; Ezio Venturino
      Abstract: Abstract In this paper two mathematical models are proposed and analyzed to elucidate the influence on a generalist predator of its hidden and explicit resources. Boundedness of the system’s trajectories, feasibility, local and global stability of the equilibria for both models are established, as well as possible local bifurcations. The findings indicate that the relevant behaviour of the system, including switching of stability, extinction and persistence of the involved populations, depends mainly on the reproduction rate of the favorite prey. To achieve full ecosystem survival some balance between the respective grazing pressures exerted by the predator on the prey populations needs to be maintained, while higher grazing pressure just on one species always leads to its extinction.
      PubDate: 2018-01-22
      DOI: 10.1007/s11565-018-0298-2
       
  • Pairings and related symmetry notions
    • Authors: G. Chiaselotti; T. Gentile; F. Infusino
      Abstract: Abstract In this paper, we give a purely mathematical generalization of an information table. We call pairing on a given set \(\Omega \) a triple \(\mathfrak {P}=(U, F, \Lambda )\) , where U and \(\Lambda \) are non-empty sets and \(F:U\times \Omega \rightarrow \Lambda \) is a map. We provide several examples of pairings: graphs, digraphs, metric spaces, group actions and vector spaces endowed with a bilinear form. Moreover, we reinterpret the usual notion of indiscernibility (with respect to a fixed attribute subset of an information table) in terms of local symmetry on U and, then, we study a global version of symmetry, that we called indistinguishability. In particular, we interpret the latter relation as the symmetrization of a pre-order \(\le _{\mathfrak {P}}\) , that describes the symmetry transmission between subsets of \(\Omega \) . Hence, we introduce a global average of symmetry transmission and studied it for some basic digraph families. Finally, we prove that the partial order of any finite lattice can be described in terms of the above pre-order.
      PubDate: 2018-01-15
      DOI: 10.1007/s11565-018-0297-3
       
  • Stability of a Kirchhoff–Roe scheme for two-dimensional linearized
           Euler systems
    • Authors: Emmanuel Franck; Laurent Gosse
      Abstract: Abstract By applying Helmholtz decomposition, the unknowns of a linearized Euler system can be recast as solutions of uncoupled linear wave equations. Accordingly, the Kirchhoff expression of the exact solutions is recast as a time-marching, Lax–Wendroff type, numerical scheme for which consistency with one-dimensional upwinding is checked. This discretization, involving spherical means, is set up on a 2D uniform Cartesian grid, so that the resulting numerical fluxes can be shown to be conservative. Moreover, semi-discrete stability in the \(H^s\) norms and vorticity dissipation are established, along with practical second-order accuracy. Finally, some relations with former “shape functions” and “symmetric potential schemes” are highlighted.
      PubDate: 2017-12-06
      DOI: 10.1007/s11565-017-0296-9
       
  • Homological equivalence relations on an algebraic curve
    • Authors: Lucio Guerra
      Abstract: Abstract We study the collection of homological equivalence relations on a fixed curve. We construct a moduli space for pairs consisting of a curve of genus g and a homological equivalence relation of degree n on the curve, and a classifying set for homological equivalence relations of degree n on a fixed curve, modulo automorphisms of the curve. We identify a special type of homological equivalence relations, and we characterize the special homological equivalence relations in terms of the existence of elliptic curves in the Jacobian of the curve.
      PubDate: 2017-11-23
      DOI: 10.1007/s11565-017-0295-x
       
 
 
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