Results 11 to 20 of about 679,276 (278)

Steady dynamos in finite domains: an integral equation approach [PDF]

open access: yes, 2000
The paper deals with the integral equation approach to steady kinematic dynamo models in finite domains based on Biot-Savart's law. The role of the electric potential at the boundary is worked out explicitly.
Brandenburg   +21 more
core   +3 more sources

On locally divided integral domains and CPI-overrings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
It is proved that an integral domain R is locally divided if and only if each CPI-extension of ℬ (in the sense of Boisen and Sheldon) is R-flat (equivalently, if and only if each CPI-extension of R is a localization of R).
David E. Dobbs
doaj   +1 more source

Reconstruction of Planar Domains from Partial Integral Measurements [PDF]

open access: yes, 2011
We consider the problem of reconstruction of planar domains from their moments. Specifically, we consider domains with boundary which can be represented by a union of a finite number of pieces whose graphs are solutions of a linear differential equation ...
Batenkov, Dmitry   +2 more
core   +2 more sources

Integrally Closed Subrings of an Integral Domain [PDF]

open access: yesTransactions of the American Mathematical Society, 1971
Let D be an integral domain with identity having quotient field K. This paper gives necessary and sufficient conditions on D in order that each integrally closed subring of D should belong to some subclass of the class of integrally closed domains; some of the subclasses considered are the completely integrally closed domains, Prufer domains, and ...
Gilmer, R., Mott, J.
openaire   +2 more sources

Note on Colon-Multiplication Domains

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
Let R be an integral domain with quotient field L. Call a nonzero (fractional) ideal A of R a colon-multiplication ideal any ideal A, such that B(A:B)=A for every nonzero (fractional) ideal B of R.
A. Mimouni
doaj   +1 more source

An explicit kernel-split panel-based Nystr\"om scheme for integral equations on axially symmetric surfaces [PDF]

open access: yes, 2016
A high-order accurate, explicit kernel-split, panel-based, Fourier-Nystr\"om discretization scheme is developed for integral equations associated with the Helmholtz equation in axially symmetric domains.
Helsing, Johan, Karlsson, Anders
core   +1 more source

A description of n-ary semigroups polynomial-derived from integral domains [PDF]

open access: yes, 2011
We provide a complete classification of the n-ary semigroup structures defined by polynomial functions over infinite commutative integral domains with identity, thus generalizing G{\l}azek and Gleichgewicht's classification of the corresponding ternary ...
D. Zupnik   +12 more
core   +3 more sources

Boundedness of fractional operators in weighted variable exponent spaces with non doubling measures [PDF]

open access: yes, 2009
In the context of variable exponent Lebesgue spaces equipped with a lower Ahlfors measure we obtain weighted norm inequalities over bounded domains for the centered fractional maximal function and the fractional integral ...
Gorosito, Osvaldo   +2 more
core   +3 more sources

Efficient Analysis of Compact Vias in an Arbitrarily Shaped Plate Pair by Hybrid Boundary-Integral and Finite-Element Method

open access: yesIEEE Access, 2019
The hybrid boundary-integral equation and finite-element method (BIE/FEM) is efficient for signal/power integrity analysis of multiple vias in a shared antipad (labeled as compact vias) in an arbitrarily shaped power/ground plate pair. According to field
Xinxin Tian   +6 more
doaj   +1 more source

A spectral approach to a constrained optimization problem for the Helmholtz equation in unbounded domains [PDF]

open access: yes, 2014
We study some convergence issues for a recent approach to the problem of transparent boundary conditions for the Helmholtz equation in unbounded domains.
Ciraolo, Giulio   +2 more
core   +2 more sources

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