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On Perfectness of Systems of Weights Satisfying Pearson’s Equation with Nonstandard Parameters

open access: yesAxioms, 2023
Measures generating classical orthogonal polynomials are determined by Pearson’s equation, whose parameters usually provide the positivity of the measures.
Alexander Dyachenko
exaly   +4 more sources

On the uniform perfectness of equivariant diffeomorphism groups for principal G manifolds [PDF]

open access: yesOpuscula 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
doaj   +2 more sources

Size-Dependent Structural, Magnetic and Magnetothermal Properties of Y3Fe5O12 Fine Particles Obtained by SCS [PDF]

open access: yesNanomaterials, 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
doaj   +2 more sources

Virtual dissection applications in learning human anatomy: international medical students’ perspectives [PDF]

open access: yesBMC Medical Education
Background 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
doaj   +2 more sources

Perfectness in locales

open access: yesQuaestiones Mathematicae, 2017
This paper makes a comparison between two notions of perfectness for locales which come as direct reformulations of the two equivalent topological definitions of perfectness. These reformulations are no longer equivalent.
Javier Gutierrez Garcia   +2 more
exaly   +2 more sources

ε-Subgame Perfectness of an Open-Loop Stackelberg Equilibrium in Linear-State Games

open access: yesDynamic Games and Applications, 2012
Open-loop Stackelberg equilibria in linear-state games are subgame perfect. This result holds under the hypothesis of unconstrained final state; whereas we need to take into account suitable final-state conditions in order to correctly formalize certain ...
Alessandra Buratto   +2 more
exaly   +2 more sources

On edge perfectness and classes of bipartite graphs

open access: yesDiscrete Mathematics, 1996
We define a notion of dependence for the edges of a graph and derive a concept of edge perfectness. We give some examples of classes of bipartite edge-perfect graphs.
Haiko Müller
exaly   +2 more sources

Perfectness of normal products of graphs

open access: yesDiscrete Mathematics, 1978
Let θ(θ1) be the partition number (edge partition number) of a graph, let α be the stability number of G. Then G is perfect (θ1-perfect) if for every induced subgraph H of G, we have θ(H) = α(H) (θ1(H) = α(H)).We prove the following characterization ...
G. Ravindra, Ravindra, G.
exaly   +2 more sources

On the perfectness of C^{∞,s}-diffeomorphism groups on a foliated manifold [PDF]

open access: yesOpuscula Mathematica, 2008
The notion of \(C^{r,s}\) and \(C^{\infty,s}\)-diffeomorphisms is introduced. It is shown that the identity component of the group of leaf preserving \(C^{\infty,s}\)-diffeomorphisms with compact supports is perfect.
Jacek Lech
doaj   +1 more source

Various domain constants related to uniform perfectness [PDF]

open access: yesComplex Variables and Elliptic Equations, 1998
This is a survey article on domain constants related to uniform perfectness. We gather comparison theorems for various domain constants, most of which are more or less known or elementary but not stated quantitatively in the literature, and some are new ...
Toshiyuki Sugawa
exaly   +1 more source

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