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Publisher: Cambridge University Press   (Total: 387 journals)

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Showing 1 - 200 of 387 Journals sorted alphabetically
Acta Neuropsychiatrica     Hybrid Journal   (Followers: 6, SJR: 0.733, CiteScore: 2)
Acta Numerica     Hybrid Journal   (Followers: 5, SJR: 6.709, CiteScore: 10)
Advances in Animal Biosciences     Full-text available via subscription   (Followers: 14)
Advances in Applied Mathematics and Mechanics     Full-text available via subscription   (Followers: 2, SJR: 0.441, CiteScore: 1)
Aeronautical J., The     Hybrid Journal   (Followers: 7)
Africa     Hybrid Journal   (Followers: 20, SJR: 0.582, CiteScore: 1)
African Studies Review     Full-text available via subscription   (Followers: 20, SJR: 0.437, CiteScore: 1)
Ageing & Society     Hybrid Journal   (Followers: 44, SJR: 0.756, CiteScore: 2)
Agricultural and Resource Economics Review     Open Access   (Followers: 6, SJR: 0.414, CiteScore: 1)
AI EDAM     Hybrid Journal   (Followers: 2, SJR: 0.375, CiteScore: 1)
AJIL Unbound     Open Access  
AJS Review     Full-text available via subscription   (Followers: 4, SJR: 0.128, CiteScore: 0)
American Political Science Review     Hybrid Journal   (Followers: 319, SJR: 5.587, CiteScore: 4)
Anatolian Studies     Full-text available via subscription   (Followers: 5, SJR: 0.528, CiteScore: 1)
Ancient Mesoamerica     Hybrid Journal   (Followers: 12, SJR: 0.478, CiteScore: 1)
Anglo-Saxon England     Hybrid Journal   (Followers: 36, SJR: 0.1, CiteScore: 0)
animal     Hybrid Journal   (Followers: 3, SJR: 0.842, CiteScore: 2)
Animal Health Research Reviews     Hybrid Journal   (Followers: 3, SJR: 0.69, CiteScore: 2)
Animal Science     Full-text available via subscription   (Followers: 11)
Annals of Actuarial Science     Full-text available via subscription   (Followers: 1)
Annual of the British School at Athens     Full-text available via subscription   (Followers: 17, SJR: 0.177, CiteScore: 0)
Annual Review of Applied Linguistics     Hybrid Journal   (Followers: 43, SJR: 3.223, CiteScore: 4)
Antarctic Science     Hybrid Journal   (Followers: 1, SJR: 0.643, CiteScore: 1)
Antichthon     Full-text available via subscription   (Followers: 3, SJR: 0.101, CiteScore: 0)
Antiquaries J., The     Full-text available via subscription   (Followers: 12, SJR: 0.106, CiteScore: 0)
Antiquity     Hybrid Journal   (Followers: 33)
ANZIAM J.     Open Access   (Followers: 1, SJR: 0.216, CiteScore: 0)
Applied Psycholinguistics     Hybrid Journal   (Followers: 25, SJR: 0.945, CiteScore: 2)
APSIPA Transactions on Signal and Information Processing     Open Access   (Followers: 9, SJR: 0.404, CiteScore: 2)
Arabic Sciences and Philosophy     Hybrid Journal   (Followers: 9, SJR: 0.101, CiteScore: 0)
Arbor Clinical Nutrition Updates     Full-text available via subscription   (Followers: 5)
Archaeological Dialogues     Hybrid Journal   (Followers: 38, SJR: 0.898, CiteScore: 1)
Archaeological Reports     Full-text available via subscription   (Followers: 5, SJR: 0.128, CiteScore: 0)
Architectural History     Full-text available via subscription  
arq: Architectural Research Quarterly     Hybrid Journal   (Followers: 7, SJR: 0.123, CiteScore: 0)
Art Libraries J.     Full-text available via subscription  
Asian J. of Comparative Law     Hybrid Journal   (Followers: 11, SJR: 0.129, CiteScore: 0)
Asian J. of Intl. Law     Hybrid Journal   (Followers: 18, SJR: 0.135, CiteScore: 0)
Asian J. of Law and Society     Hybrid Journal   (Followers: 7, SJR: 0.195, CiteScore: 0)
Astin Bulletin     Full-text available via subscription   (Followers: 1, SJR: 0.878, CiteScore: 1)
Australasian J. of Organisational Psychology     Hybrid Journal   (Followers: 9, SJR: 0.154, CiteScore: 1)
Australian J. of Environmental Education     Full-text available via subscription   (Followers: 9, SJR: 0.403, CiteScore: 1)
Australian J. of Indigenous Education, The     Full-text available via subscription   (Followers: 10, SJR: 0.26, CiteScore: 1)
Australian J. of Rehabilitation Counseling     Full-text available via subscription   (Followers: 6, SJR: 0.144, CiteScore: 0)
Austrian History Yearbook     Full-text available via subscription   (Followers: 11, SJR: 0.161, CiteScore: 0)
Behavioral and Brain Sciences     Hybrid Journal   (Followers: 39, SJR: 0.595, CiteScore: 1)
Behaviour Change     Full-text available via subscription   (Followers: 13, SJR: 0.508, CiteScore: 1)
Behavioural and Cognitive Psychotherapy     Hybrid Journal   (Followers: 180, SJR: 0.976, CiteScore: 2)
Bilingualism: Language and Cognition     Hybrid Journal   (Followers: 42, SJR: 1.446, CiteScore: 2)
Biofilms     Full-text available via subscription   (Followers: 1)
Bird Conservation Intl.     Hybrid Journal   (Followers: 25, SJR: 0.581, CiteScore: 1)
BJPsych Advances     Full-text available via subscription   (Followers: 57, SJR: 0.275, CiteScore: 0)
BJPsych Intl.     Open Access   (Followers: 2)
BJPsych Open     Open Access   (Followers: 3)
Brain Impairment     Full-text available via subscription   (Followers: 2, SJR: 0.321, CiteScore: 1)
Breast Cancer Online     Full-text available via subscription   (Followers: 4)
Britannia     Full-text available via subscription   (Followers: 11, SJR: 0.111, CiteScore: 0)
British Actuarial J.     Full-text available via subscription  
British Catholic History     Hybrid Journal   (Followers: 2, SJR: 0.133, CiteScore: 1)
British J. for the History of Science     Hybrid Journal   (Followers: 24, SJR: 0.235, CiteScore: 0)
British J. of Anaesthetic and Recovery Nursing     Full-text available via subscription   (Followers: 8)
British J. of Music Education     Hybrid Journal   (Followers: 24, SJR: 0.564, CiteScore: 1)
British J. Of Nutrition     Hybrid Journal   (Followers: 90, SJR: 1.612, CiteScore: 4)
British J. of Political Science     Hybrid Journal   (Followers: 216, SJR: 4.661, CiteScore: 4)
British J. of Psychiatry     Hybrid Journal   (Followers: 221, SJR: 2.844, CiteScore: 3)
Bulletin of Entomological Research     Hybrid Journal   (Followers: 13, SJR: 0.805, CiteScore: 2)
Bulletin of Symbolic Logic     Full-text available via subscription   (Followers: 2, SJR: 0.555, CiteScore: 1)
Bulletin of the Australian Mathematical Society     Full-text available via subscription   (Followers: 2, SJR: 0.44, CiteScore: 0)
Bulletin of the School of Oriental and African Studies     Hybrid Journal   (Followers: 21, SJR: 0.146, CiteScore: 0)
Business and Human Rights J.     Full-text available via subscription   (Followers: 4, SJR: 0.536, CiteScore: 1)
Business Ethics Quarterly     Full-text available via subscription   (Followers: 18, SJR: 1.098, CiteScore: 2)
Business History Review     Hybrid Journal   (Followers: 16, SJR: 0.347, CiteScore: 1)
Cambridge Archaeological J.     Hybrid Journal   (Followers: 150, SJR: 1.121, CiteScore: 1)
Cambridge Classical J.     Full-text available via subscription   (Followers: 24, SJR: 0.101, CiteScore: 0)
Cambridge J. of Postcolonial Literary Inquiry     Hybrid Journal   (Followers: 7)
Cambridge Law J.     Hybrid Journal   (Followers: 199, SJR: 0.213, CiteScore: 0)
Cambridge Opera J.     Hybrid Journal   (Followers: 4, SJR: 0.14, CiteScore: 0)
Cambridge Quarterly of Healthcare Ethics     Hybrid Journal   (Followers: 11, SJR: 0.299, CiteScore: 1)
Cambridge Yearbook of European Legal Studies     Full-text available via subscription  
Camden Fifth Series     Full-text available via subscription   (Followers: 3)
Canadian Entomologist     Hybrid Journal   (Followers: 5, SJR: 0.482, CiteScore: 1)
Canadian J. of Emergency Medicine     Hybrid Journal   (Followers: 13, SJR: 0.624, CiteScore: 1)
Canadian J. of Law & Jurisprudence     Full-text available via subscription   (Followers: 11, SJR: 0.237, CiteScore: 0)
Canadian J. of Law and Society     Hybrid Journal   (Followers: 20, SJR: 0.259, CiteScore: 1)
Canadian J. of Mathematics / J. canadien de mathématiques     Hybrid Journal  
Canadian J. of Neurological Sciences     Full-text available via subscription   (SJR: 0.549, CiteScore: 1)
Canadian J. of Political Science/Revue canadienne de science politique     Full-text available via subscription   (Followers: 25, SJR: 0.385, CiteScore: 1)
Canadian J. on Aging     Hybrid Journal   (Followers: 13, SJR: 0.426, CiteScore: 1)
Canadian Mathematical Bulletin     Hybrid Journal  
Canadian Yearbook of Intl. Law / Annuaire canadien de droit international     Full-text available via subscription   (Followers: 3)
Cardiology in the Young     Hybrid Journal   (Followers: 34, SJR: 0.372, CiteScore: 1)
Central European History     Full-text available via subscription   (Followers: 32, SJR: 0.159, CiteScore: 0)
Children Australia     Partially Free   (Followers: 2, SJR: 0.255, CiteScore: 0)
China Quarterly     Hybrid Journal   (Followers: 52, SJR: 2.289, CiteScore: 3)
Chinese J. of Agricultural Biotechnology     Full-text available via subscription   (Followers: 4)
Church History : Studies in Christianity and Culture     Full-text available via subscription   (Followers: 75, SJR: 0.106, CiteScore: 0)
Classical Quarterly     Full-text available via subscription   (Followers: 35, SJR: 0.204, CiteScore: 0)
Classical Review     Full-text available via subscription   (Followers: 29)
CNS Spectrums     Hybrid Journal   (Followers: 3, SJR: 1.391, CiteScore: 3)
Cognitive Behaviour Therapist     Hybrid Journal   (Followers: 14)
Combinatorics, Probability and Computing     Hybrid Journal   (Followers: 4, SJR: 0.839, CiteScore: 1)
Communications in Computational Physics     Full-text available via subscription   (Followers: 3, SJR: 1.048, CiteScore: 2)
Comparative Studies in Society and History     Full-text available via subscription   (Followers: 49, SJR: 0.585, CiteScore: 1)
Compositio Mathematica     Full-text available via subscription   (SJR: 3.139, CiteScore: 1)
Contemporary European History     Hybrid Journal   (Followers: 34, SJR: 0.263, CiteScore: 1)
Continuity and Change     Hybrid Journal   (Followers: 12, SJR: 0.107, CiteScore: 0)
Dance Research J.     Full-text available via subscription   (Followers: 15, SJR: 0.211, CiteScore: 0)
Development and Psychopathology     Hybrid Journal   (Followers: 9, SJR: 2.068, CiteScore: 4)
Dialogue Canadian Philosophical Review/Revue canadienne de philosophie     Full-text available via subscription   (Followers: 5, SJR: 0.156, CiteScore: 0)
Diamond Light Source Proceedings     Full-text available via subscription   (Followers: 1)
Disaster Medicine and Public Health Preparedness     Hybrid Journal   (Followers: 14, SJR: 0.471, CiteScore: 1)
Du Bois Review: Social Science Research on Race     Full-text available via subscription   (Followers: 10, SJR: 0.561, CiteScore: 1)
Early China     Hybrid Journal   (Followers: 3)
Early Music History     Hybrid Journal   (Followers: 9, SJR: 0.101, CiteScore: 0)
Earth and Environmental Science Transactions of the Royal Society of Edinburgh     Hybrid Journal   (Followers: 5)
East Asian J. on Applied Mathematics     Full-text available via subscription   (SJR: 0.418, CiteScore: 1)
Ecclesiastical Law J.     Full-text available via subscription   (Followers: 6, SJR: 0.114, CiteScore: 0)
Econometric Theory     Hybrid Journal   (Followers: 18, SJR: 2.915, CiteScore: 1)
Economics and Philosophy     Hybrid Journal   (Followers: 18, SJR: 0.622, CiteScore: 1)
Edinburgh J. of Botany     Hybrid Journal   (SJR: 0.283, CiteScore: 1)
Educational and Developmental Psychologist     Full-text available via subscription   (Followers: 10, SJR: 0.146, CiteScore: 0)
Eighteenth-Century Music     Hybrid Journal   (Followers: 13, SJR: 0.113, CiteScore: 0)
English Language and Linguistics     Hybrid Journal   (Followers: 24, SJR: 0.52, CiteScore: 1)
English Profile J.     Hybrid Journal   (Followers: 2)
English Today     Hybrid Journal   (Followers: 13, SJR: 0.279, CiteScore: 0)
Enterprise & Society : The Intl. J. of Business History     Hybrid Journal   (Followers: 18, SJR: 0.245, CiteScore: 1)
Environment and Development Economics     Hybrid Journal   (Followers: 40, SJR: 0.617, CiteScore: 1)
Environmental Conservation     Hybrid Journal   (Followers: 60, SJR: 1.028, CiteScore: 2)
Environmental Practice     Full-text available via subscription   (Followers: 3, SJR: 0.145, CiteScore: 0)
Epidemiology & Infection     Hybrid Journal   (Followers: 18, SJR: 1.128, CiteScore: 2)
Epidemiology and Psychiatric Sciences     Hybrid Journal   (Followers: 3, SJR: 1.494, CiteScore: 2)
Episteme     Hybrid Journal   (Followers: 12, SJR: 0.756, CiteScore: 1)
Ergodic Theory and Dynamical Systems     Hybrid Journal   (Followers: 2, SJR: 1.193, CiteScore: 1)
Ethics & Intl. Affairs     Full-text available via subscription   (Followers: 17, SJR: 0.557, CiteScore: 1)
European Constitutional Law Review (EuConst)     Full-text available via subscription   (Followers: 35, SJR: 1.009, CiteScore: 1)
European J. of Applied Mathematics     Hybrid Journal   (SJR: 0.52, CiteScore: 1)
European J. of Intl. Security     Hybrid Journal   (Followers: 1)
European J. of Sociology     Hybrid Journal   (Followers: 36, SJR: 0.643, CiteScore: 1)
European Political Science Review     Hybrid Journal   (Followers: 27, SJR: 1.816, CiteScore: 2)
European Review     Hybrid Journal   (Followers: 19, SJR: 0.131, CiteScore: 0)
Evolutionary Human Sciences     Open Access  
Experimental Agriculture     Hybrid Journal   (Followers: 14, SJR: 0.542, CiteScore: 1)
Expert Reviews in Molecular Medicine     Hybrid Journal   (Followers: 1, SJR: 1.647, CiteScore: 4)
Fetal and Maternal Medicine Review     Hybrid Journal   (Followers: 6)
Financial History Review     Full-text available via subscription   (Followers: 15, SJR: 0.238, CiteScore: 1)
Foreign Policy Bulletin     Hybrid Journal   (Followers: 6)
Forum of Mathematics, Pi     Open Access   (Followers: 1)
Forum of Mathematics, Sigma     Open Access   (Followers: 1)
Genetics Research     Hybrid Journal   (Followers: 4, SJR: 0.483, CiteScore: 1)
Geological Magazine     Hybrid Journal   (Followers: 16, SJR: 0.966, CiteScore: 2)
Glasgow Mathematical J.     Full-text available via subscription   (SJR: 0.604, CiteScore: 0)
Global Constitutionalism     Hybrid Journal   (Followers: 17)
Global Mental Health     Open Access   (Followers: 9)
Global Sustainability     Open Access  
Government and Opposition     Full-text available via subscription   (Followers: 24, SJR: 0.965, CiteScore: 2)
Greece & Rome     Partially Free   (Followers: 30, SJR: 0.113, CiteScore: 0)
Hague J. on the Rule of Law     Full-text available via subscription   (Followers: 15, SJR: 0.271, CiteScore: 1)
Harvard Theological Review     Full-text available via subscription   (Followers: 80, SJR: 0.165, CiteScore: 0)
Health Economics, Policy and Law     Hybrid Journal   (Followers: 29, SJR: 0.745, CiteScore: 1)
Hegel Bulletin     Full-text available via subscription   (Followers: 2)
High Power Laser Science and Engineering     Open Access   (Followers: 3, SJR: 0.901, CiteScore: 3)
Historical J.     Hybrid Journal   (Followers: 39, SJR: 0.247, CiteScore: 1)
History in Africa     Full-text available via subscription   (Followers: 9)
Horizons     Partially Free   (Followers: 1, SJR: 0.129, CiteScore: 0)
Industrial and Organizational Psychology     Hybrid Journal   (Followers: 27, SJR: 0.916, CiteScore: 1)
Infection Control and Hospital Epidemiology     Full-text available via subscription   (Followers: 41, SJR: 1.97, CiteScore: 3)
Intl. & Comparative Law Quarterly     Full-text available via subscription   (Followers: 251, SJR: 0.369, CiteScore: 1)
Intl. Annals of Criminology     Full-text available via subscription  
Intl. J. of Asian Studies     Hybrid Journal   (Followers: 13, SJR: 0.143, CiteScore: 0)
Intl. J. of Astrobiology     Hybrid Journal   (Followers: 4, SJR: 0.548, CiteScore: 1)
Intl. J. of Cultural Property     Full-text available via subscription   (Followers: 13, SJR: 0.253, CiteScore: 1)
Intl. J. of Disability Management Research     Full-text available via subscription   (Followers: 9, SJR: 0.105, CiteScore: 0)
Intl. J. of Law in Context     Hybrid Journal   (Followers: 17, SJR: 0.275, CiteScore: 1)
Intl. J. of Legal Information     Full-text available via subscription   (Followers: 343)
Intl. J. of Microwave and Wireless Technologies     Hybrid Journal   (Followers: 10, SJR: 0.184, CiteScore: 1)
Intl. J. of Middle East Studies     Hybrid Journal   (Followers: 72, SJR: 0.434, CiteScore: 0)
Intl. J. of Technology Assessment in Health Care     Hybrid Journal   (Followers: 14, SJR: 0.714, CiteScore: 1)
Intl. Labor and Working-Class History     Full-text available via subscription   (Followers: 14, SJR: 0.182, CiteScore: 0)
Intl. Organization     Full-text available via subscription   (Followers: 106, SJR: 8.527, CiteScore: 5)
Intl. Psychogeriatrics     Hybrid Journal   (Followers: 13, SJR: 1.048, CiteScore: 2)
Intl. Review of Social History     Full-text available via subscription   (Followers: 27, SJR: 0.315, CiteScore: 1)
Intl. Review of the Red Cross     Full-text available via subscription   (Followers: 13, SJR: 0.214, CiteScore: 0)
Intl. Theory: A J. of Intl. Politics, Law and Philosophy     Hybrid Journal   (Followers: 19, SJR: 2.293, CiteScore: 2)
Iraq     Full-text available via subscription   (Followers: 4)
Irish Historical Studies     Hybrid Journal   (Followers: 6, SJR: 0.103, CiteScore: 0)
Irish J. of Psychological Medicine     Hybrid Journal   (Followers: 2, SJR: 0.221, CiteScore: 0)
Israel Law Review     Hybrid Journal   (Followers: 2, SJR: 0.165, CiteScore: 0)
Italian Political Science Review / Rivista Italiana di Scienza Politica     Hybrid Journal  
Itinerario     Full-text available via subscription   (Followers: 11, SJR: 0.158, CiteScore: 0)
J. of African History     Hybrid Journal   (Followers: 21, SJR: 0.348, CiteScore: 1)
J. of African Law     Full-text available via subscription   (Followers: 3, SJR: 0.113, CiteScore: 0)
J. of Agricultural and Applied Economics     Open Access   (Followers: 2, SJR: 0.263, CiteScore: 1)
J. of Agricultural Science     Full-text available via subscription   (Followers: 8, SJR: 0.563, CiteScore: 1)
J. of American Studies     Hybrid Journal   (Followers: 20, SJR: 0.164, CiteScore: 0)
J. of Anglican Studies     Hybrid Journal   (Followers: 6, SJR: 0.101, CiteScore: 0)
J. of Applied Animal Nutrition     Hybrid Journal   (Followers: 4)
J. of Asian Studies     Full-text available via subscription   (Followers: 41, SJR: 0.591, CiteScore: 1)
J. of Benefit-Cost Analysis     Hybrid Journal   (Followers: 4)
J. of Biosocial Science     Hybrid Journal   (Followers: 4, SJR: 0.48, CiteScore: 1)
J. of British Studies     Full-text available via subscription   (Followers: 32, SJR: 0.246, CiteScore: 0)

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Similar Journals
Journal Cover
Canadian Mathematical Bulletin
Number of Followers: 0  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 00084395 - ISSN (Online) 14964287
Published by Cambridge University Press Homepage  [387 journals]
  • BCM volume 62 Issue 4 Cover and Front matter
    • Pages: 1 - 2
      PubDate: 2019-11-07
      DOI: 10.4153/S0008439519000584
       
  • BCM volume 62 Issue 4 Cover and Back matter
    • Pages: 1 - 2
      PubDate: 2019-11-07
      DOI: 10.4153/S0008439519000596
       
  • On Differential Torsion Theories and Rings with Several Objects
    • Authors: Banerjee; Abhishek
      Pages: 703 - 714
      Abstract: Let be a small preadditive category, viewed as a “ring with several objects.” A right -module is an additive functor from to the category of abelian groups. We show that every hereditary torsion theory on the category of right -modules must be differential.
      PubDate: 2019-04-08
      DOI: 10.4153/S0008439518000656
       
  • Topological Properties of a Class of Higher-dimensional Self-affine Tiles
    • Authors: Deng; Guotai, Liu, Chuntai, Ngai, Sze-Man
      Pages: 727 - 740
      Abstract: We construct a family of self-affine tiles in ( ) with noncollinear digit sets, which naturally generalizes a class studied originally by Q.-R. Deng and K.-S. Lau in , and its extension to by the authors. We obtain necessary and sufficient conditions for the tiles to be connected and for their interiors to be contractible.
      PubDate: 2019-05-03
      DOI: 10.4153/S0008439519000237
       
  • Universal Entire Functions That Define Order Isomorphisms of Countable
           Real Sets
    • Authors: Gauthier P. M.
      Pages: 767 - 779
      Abstract: In 1895, Cantor showed that between every two countable dense real sets, there is an order isomorphism. In fact, there is always such an order isomorphism that is the restriction of a universal entire function.
      PubDate: 2019-04-10
      DOI: 10.4153/S0008439519000158
       
  • Perturbation Analysis of Orthogonal Least Squares
    • Authors: Geng; Pengbo, Chen, Wengu, Ge, Huanmin
      Pages: 780 - 797
      Abstract: The Orthogonal Least Squares (OLS) algorithm is an efficient sparse recovery algorithm that has received much attention in recent years. On one hand, this paper considers that the OLS algorithm recovers the supports of sparse signals in the noisy case. We show that the OLS algorithm exactly recovers the support of -sparse signal from in iterations, provided that the sensing matrix satisfies the restricted isometry property (RIP) with restricted isometry constant (RIC) , and the minimum magnitude of the nonzero elements of satisfies some constraint. On the other hand, this paper demonstrates that the OLS algorithm exactly recovers the support of the best -term approximation of an almost sparse signal in the general perturbations case, which means both and are perturbed. We show that the support of the best ...
      PubDate: 2019-03-22
      DOI: 10.4153/S0008439519000134
       
  • Rings whose Elements are the Sum of a Tripotent and an Element from the
           Jacobson Radical
    • Authors: Koşan; M. Tamer, Yildirim, Tülay, Zhou, Y.
      Pages: 810 - 821
      Abstract: This paper is about rings for which every element is a sum of a tripotent and an element from the Jacobson radical . These rings are called semi-tripotent rings. Examples include Boolean rings, strongly nil-clean rings, strongly 2-nil-clean rings, and semi-boolean rings. Here, many characterizations of semi-tripotent rings are obtained. Necessary and sufficient conditions for a Morita context (respectively, for a group ring of an abelian group or a locally finite nilpotent group) to be semi-tripotent are proved.
      PubDate: 2019-03-15
      DOI: 10.4153/S0008439519000092
       
  • Einstein–Maxwell Equations on Four-dimensional Lie Algebras
    • Authors: Koca; Caner, Lejmi, Mehdi
      Pages: 822 - 840
      Abstract: We classify up to automorphisms all left-invariant non-Einstein solutions to the Einstein–Maxwell equations on four-dimensional Lie algebras.
      PubDate: 2019-05-09
      DOI: 10.4153/S0008439519000249
       
  • The Shifted Turán Sieve Method on Tournaments
    • Authors: Kuo; Wentang, Liu, Yu-Ru, Ribas, Sávio, Zhou, Kevin
      Pages: 841 - 855
      Abstract: We construct a shifted version of the Turán sieve method developed by R. Murty and the second author and apply it to counting problems on tournaments. More precisely, we obtain upper bounds for the number of tournaments which contain a fixed number of restricted -cycles. These are the first concrete results which count the number of cycles over “all tournaments”.
      PubDate: 2019-04-11
      DOI: 10.4153/S000843951900016X
       
  • Chains of P-points
    • Authors: Raghavan; Dilip, Verner, Jonathan L.
      Pages: 856 - 868
      Abstract: It is proved that the Continuum Hypothesis implies that any sequence of rapid P-points of length that is increasing with respect to the Rudin–Keisler ordering is bounded above by a rapid P-point. This is an improvement of a result from B. Kuzeljevic and D. Raghavan. It is also proved that Jensen’s diamond principle implies the existence of an unbounded strictly increasing sequence of P-points of length in the Rudin–Keisler ordering. This shows that restricting to the class of rapid P-points is essential for the first result.
      PubDate: 2019-02-18
      DOI: 10.4153/S0008439519000043
       
  • Büchi’s Problem in Modular Arithmetic for Arbitrary Quadratic
           Polynomials
    • Authors: Sáez; Pablo, Vidaux, Xavier, Vsemirnov, Maxim
      Pages: 876 - 885
      Abstract: Given a prime and an integer , we show that there exists an integer such that for any quadratic polynomial with coefficients in the ring of integers modulo , such that is not a square, if a sequence is a sequence of squares, then is at most . We also provide some explicit formulas for the optimal .
      PubDate: 2019-04-26
      DOI: 10.4153/S0008439519000225
       
  • Linear Conjugacy
    • Authors: Steinberg; Benjamin
      Pages: 886 - 895
      Abstract: We say that two elements of a group or semigroup are -linear conjugates if their images under any linear representation over are conjugate matrices. In this paper we characterize -linear conjugacy for finite semigroups (and, in particular, for finite groups) over an arbitrary field  .
      PubDate: 2019-01-29
      DOI: 10.4153/S0008439519000031
       
  • Well-posedness of Third Order Differential Equations in Hölder
           Continuous Function Spaces
    • Authors: Bu; Shangquan, Cai, Gang
      Pages: 715 - 726
      Abstract: In this paper, by using operator-valued -Fourier multiplier results on vector-valued Hölder continuous function spaces, we give a characterization of the -well-posedness for the third order differential equations , ( ), where are closed linear operators on a Banach space such that , and .
      PubDate: 2018-10-15
      DOI: 10.4153/S0008439518000048
       
  • Diameter, Decomposability, and Minkowski Sums of Polytopes
    • Authors: Deza; Antoine, Pournin, Lionel
      Pages: 741 - 755
      Abstract: We investigate how the Minkowski sum of two polytopes affects their graph and, in particular, their diameter. We show that the diameter of the Minkowski sum is bounded below by the diameter of each summand and above by, roughly, the product between the diameter of one summand and the number of vertices of the other. We also prove that both bounds are sharp. In addition, we obtain a result on polytope decomposability. More precisely, given two polytopes and  , we show that can be written as a Minkowski sum with a summand homothetic to if and only if has the same number of vertices as its Minkowski sum with  .
      PubDate: 2018-12-17
      DOI: 10.4153/S0008439518000668
       
  • Simplicial (Co)-homology of $\ell ^{1}(\mathbb{Z}_{+})$
    • Authors: Farhat; Yasser, Gourdeau, Frédéric
      Pages: 756 - 766
      Abstract: We consider the unital Banach algebra and prove directly, without using cyclic cohomology, that the simplicial cohomology groups vanish for all . This proceeds via the introduction of an explicit bounded linear operator which produces a contracting homotopy for . This construction is generalised to unital Banach algebras , where and is a subgroup of  .
      PubDate: 2018-12-17
      DOI: 10.4153/S0008439518000644
       
  • Sidon Sets are Proportionally Sidon with Small Sidon Constants
    • Authors: Hare; Kathryn E., Yang, Robert (Xu)
      Pages: 798 - 809
      Abstract: In his seminal work on Sidon sets, Pisier found an important characterization of Sidonicity: A set is Sidon if and only if it is proportionally quasi-independent. Later, it was shown that Sidon sets were proportionally “special” Sidon in several other ways. Here, we prove that Sidon sets in torsion-free groups are proportionally -degree independent, a higher order of independence than quasi-independence, and we use this to prove that Sidon sets are proportionally Sidon with Sidon constants arbitrarily close to one, the minimum possible value.
      PubDate: 2018-12-11
      DOI: 10.4153/S0008439518000620
       
  • Numbers with Almost all Convergents in a Cantor Set
    • Authors: Roy; Damien, Schleischitz, Johannes
      Pages: 869 - 875
      Abstract: In 1984, K. Mahler asked how well elements in the Cantor middle third set can be approximated by rational numbers from that set and by rational numbers outside of that set. We consider more general missing digit sets and construct numbers in that are arbitrarily well approximable by rationals in  , but badly approximable by rationals outside of  . More precisely, we construct them so that all but finitely many of their convergents lie in  .
      PubDate: 2018-12-03
      DOI: 10.4153/S0008439518000450
       
  • On Knörrer Periodicity for Quadric Hypersurfaces in Skew Projective
           Spaces
    • Authors: Ueyama; Kenta
      Pages: 896 - 911
      Abstract: We study the structure of the stable category of graded maximal Cohen–Macaulay module over where is a graded ( )-skew polynomial algebra in variables of degree 1, and . If is commutative, then the structure of is well known by Knörrer’s periodicity theorem. In this paper, we prove that if , then the structure of is determined by the number of irreducible components of the point scheme of which are isomorphic to .
      PubDate: 2018-12-03
      DOI: 10.4153/S0008439518000607
       
  • Ricci Solitons on Almost Co-Kähler Manifolds
    • Authors: Wang; Yaning
      Pages: 912 - 922
      Abstract: In this paper, we prove that if an almost co-Kähler manifold of dimension greater than three satisfying -Einstein condition with constant coefficients is a Ricci soliton with potential vector field being of constant length, then either the manifold is Einstein or the Reeb vector field is parallel. Let be a non-co-Kähler almost co-Kähler 3-manifold such that the Reeb vector field is an eigenvector field of the Ricci operator. If is a Ricci soliton with transversal potential vector field, then it is locally isometric to Lie group of rigid motions of the Minkowski 2-space.
      PubDate: 2018-12-07
      DOI: 10.4153/S0008439518000632
       
  • Multiple Lattice Tilings in Euclidean Spaces
    • Authors: Yang; Qi, Zong, Chuanming
      Pages: 923 - 929
      Abstract: In 1885, Fedorov discovered that a convex domain can form a lattice tiling of the Euclidean plane if and only if it is a parallelogram or a centrally symmetric hexagon. This paper proves the following results. Except for parallelograms and centrally symmetric hexagons, there are no other convex domains that can form two-, three- or four-fold lattice tilings in the Euclidean plane. However, there are both octagons and decagons that can form five-fold lattice tilings. Whenever , there are non-parallelohedral polytopes that can form five-fold lattice tilings in the -dimensional Euclidean space.
      PubDate: 2018-11-16
      DOI: 10.4153/S0008439518000103
       
 
 
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