On Perfectness of Systems of Weights Satisfying Pearson’s Equation with Nonstandard Parameters [PDF]
Axioms, 2023 Measures generating classical orthogonal polynomials are determined by Pearson’s equation, whose parameters usually provide the positivity of the measures.
Alexander Dyachenko
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On the uniform perfectness of equivariant diffeomorphism groups for principal G manifolds [PDF]
Opuscula Mathematica, 2017 We proved in [K. Abe, K. Fukui, On commutators of equivariant diffeomorphisms, Proc. Japan Acad. 54 (1978), 52-54] that the identity component \(\text{Diff}\,^r_{G,c}(M)_0\) of the group of equivariant \(C^r\)-diffeomorphisms of a principal \(G\) bundle \
Kazuhiko Fukui
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Size-Dependent Structural, Magnetic and Magnetothermal Properties of Y3Fe5O12 Fine Particles Obtained by SCS [PDF]
Nanomaterials, 2022 Iron-containing oxides are the most important functional substance class and find a tremendous variety of applications. An attractive modern application is their use in biomedical technologies as components in systems for imaging, drug delivery ...
Tatiana Kiseleva +13 more
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Virtual dissection applications in learning human anatomy: international medical students’ perspectives [PDF]
BMC Medical EducationBackground Understanding human anatomy is fundamental to building medical competencies. This study explored the diverse perceptions of medical students in Saudi Arabia and Egypt concerning virtual dissection applications.
Adel M. Aboregela +7 more
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PERFECTNESS OF THE ANNIHILATOR GRAPH OF ARTINIAN COMMUTATIVE RINGS [PDF]
Journal of Algebraic Systems, 2023 Let $R$ be a commutative ring and $Z(R)$ be the set of its zero-divisors.The annihilator graph of $R$, denoted by $AG(R)$ is a simple undirected graph whose vertexset is $Z(R)^*$, the set of all nonzero zero-divisors of $R$, and two distinct ...
M. Adlifard, Sh. Payrovi
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On the structure of certain nontransitive diffeomorphism groups on open manifolds [PDF]
Opuscula Mathematica, 2012 It is shown that in some generic cases the identity component of the group of leaf preserving diffeomorphisms (with not necessarily compact support) on a foliated open manifold is perfect. Next, it is proved that it is also bounded, i.e.
Agnieszka Kowalik +2 more
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Similarities of Jonsson spectra’s classes
Қарағанды университетінің хабаршысы. Математика сериясы, 2023 The study of syntactic and semantic properties of a first-order language, generally speaking, for incomplete theories, is one of the urgent problems of mathematical logic.
A.R. Yeshkeyev +2 more
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The matrix Jacobson graph of finite commutative rings
Electronic Journal of Graph Theory and Applications, 2022 The notion of the matrix Jacobson graph was introduced in 2019. Let R be a commutative ring and J(R) be the Jacobson radical of ring R. The matrix Jacobson graph of ring R size m × n, denoted 𝔍(R)m × n, is defined as a graph where the vertex set is Rm ...
Siti Humaira +3 more
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Two New Estimators for a Normal Coefficient of Variation based on Ranked Set Sampling [PDF]
المجلة العلمية للدراسات والبحوث المالية والإدارية, 2021 This article addresses the estimation for the coefficient of variation (CV) of the normal distribution considering ranked set sampling. Using EM algorithm and linear interpolation technique, two new estimators for the CV are proposed.
Mohamed S. Abdallah, Mohamed S. Hamouda
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Perfectness of Kirillov―Reshetikhin crystals for nonexceptional types [PDF]
Discrete Mathematics & Theoretical Computer Science, 2009 For nonexceptional types, we prove a conjecture of Hatayama et al. about the prefectness of Kirillov―Reshetikhin crystals.
Ghislain Fourier +2 more
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