Results 21 to 30 of about 679,276 (278)
Monatshefte f�r Mathematik, 1975 A direct product decomposition is given for the multiplicative semigroup of a finite near integral domain in terms of the subsemigroup of left identities and a group of automorphisms on the additive group of the domain. Conditions are given which insure that every element will have a uniquen-th root. If there existsx≠0 such that (−x)y=−(xy), for eachy,
Heatherly, H., Olivier, Horace
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On the Number of Spherical Circles Needed to Cover a Spherical Convex Domain
MathematicsIn this manuscript, we study the coverage of convex spherical domains by spherical circles. This question can be applied to the location of satellites, weather balloons, radio towers, etc.
Elad Atia, Reuven Cohen, Shai Gul
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A Domain Decomposition Method for Hybrid Shell Vector Element with Boundary Integral Method
International Journal of Antennas and Propagation, 2012 For the conducting body coated with thin-layer material, plenty of fine meshes are required in general. In this paper, shell vector element (SVE) is used for modeling of thin coating dielectric.
Lin Lei, Jun Hu, Hao-Quan Hu
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Star-Invertibility and $t$-finite character in Integral Domains
, 2010 Let $A$ be an integral domain. We study new conditions on families of integral ideals of $A$ in order to get that $A$ is of $t$-finite character (i.e., each nonzero element of $A$ is contained in finitely many $t$-maximal ideals).
Finocchiaro, Carmelo Antonio +2 more
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Taiwanese Journal of Mathematics, 2013 It is proved that if $D$ is a $UFD$ and $R$ is a $D$-algebra, such that $U(R)\cap D\neq U(D)$, then $R$ has a maximal subring. In particular, if $R$ is a ring which either contains a unit $x$ which is not algebraic over the prime subring of $R$, or $R$ has zero characteristic and there exists a natural number $n>1$ such that $\frac{1}{n}\in R$, then
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Boundary integral equation methods for Lipschitz domains in linear elasticity
Comptes Rendus. MathématiqueA review of stable boundary integral equation methods for solving the Navier equation with either Dirichlet or Neumann boundary conditions in the exterior of a Lipschitz domain is presented.
Le Louër, Frédérique
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On the Existence of Solutions of Nonlinear Fredholm Integral Equations from Kantorovich’s Technique
Algorithms, 2017 The well-known Kantorovich technique based on majorizing sequences is used to analyse the convergence of Newton’s method when it is used to solve nonlinear Fredholm integral equations. In addition, we obtain information about the domains of existence and
José Antonio Ezquerro +1 more
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ON SOME NEW ESTIMATES RELATED WITH BERGMAN BALL AND POISSON INTEGRAL IN TUBULAR DOMAIN AND UNIT BALL [PDF]
Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2018 We introduce new Herz type analytic spaces based on Bergman balls in tubular domains over symmetric cones and in products of such type domains. We provide for these Herz type spaces new maximal and embedding theorems extending known results in the unit ...
R. F. Shamoyan, O. R. Mihi´c
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Robust and efficient solution of the drum problem via Nystrom approximation of the Fredholm determinant [PDF]
, 2014 The drum problem-finding the eigenvalues and eigenfunctions of the Laplacian with Dirichlet boundary condition-has many applications, yet remains challenging for general domains when high accuracy or high frequency is needed.
Barnett, Alex, Zhao, Lin
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Universally catenarian integral domains
Advances in Mathematics, 1988 The authors study (not necessarily Noetherian) integral domains R that have the property that the polynomial ring \(R[X_ 1,...,X_ n]\) is catenarian for each positive \(integer n\). Such domains are said to be universally catenarian. It is proved that a domain R with this property is a stably strong S-domain in the sense of \textit{S.
BOUVIER A, DOBBS DE, FONTANA, Marco
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