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Displaying 301 – 320 of 2279

A general perturbation formula for electromagnetic fields in presence of low volume scatterers

Roland Griesmaier (2011)

ESAIM: Mathematical Modelling and Numerical Analysis

In several practically interesting applications of electromagnetic scattering theory like, e.g., scattering from small point-like objects such as buried artifacts or small inclusions in non-destructive testing, scattering from thin curve-like objects such as wires or tubes, or scattering from thin sheet-like objects such as cracks, the volume of the scatterers is small relative to the volume of the surrounding medium and with respect to the wave length of the applied electromagnetic fields. This...

A general representation formula for boundary voltage perturbations caused by internal conductivity inhomogeneities of low volume fraction

Yves Capdeboscq, Michael S. Vogelius (2003)

ESAIM: Mathematical Modelling and Numerical Analysis - Modélisation Mathématique et Analyse Numérique

We establish an asymptotic representation formula for the steady state voltage perturbations caused by low volume fraction internal conductivity inhomogeneities. This formula generalizes and unifies earlier formulas derived for special geometries and distributions of inhomogeneities.

A general representation formula for boundary voltage perturbations caused by internal conductivity inhomogeneities of low volume fraction

Yves Capdeboscq, Michael S. Vogelius (2010)

ESAIM: Mathematical Modelling and Numerical Analysis

A general stochastic target problem with jump diffusion and an application to a hedging problem for large investors.

Saintier, Nicolas (2007)

Electronic Communications in Probability [electronic only]

A general theory of integral transforms and its applications

S. Saitoh (1985)

Matematički Vesnik

A general transfer function representation for a class of hyperbolic distributed parameter systems

Krzysztof Bartecki (2013)

International Journal of Applied Mathematics and Computer Science

Results of transfer function analysis for a class of distributed parameter systems described by dissipative hyperbolic partial differential equations defined on a one-dimensional spatial domain are presented. For the case of two boundary inputs, the closed-form expressions for the individual elements of the 2×2 transfer function matrix are derived both in the exponential and in the hyperbolic form, based on the decoupled canonical representation of the system. Some important properties of the transfer...

A generalization for Peakon's solitary wave and Camassa-Holm equation.

Boldea, Costin-Radu (1997)

General Mathematics

A generalization of a theorem by Kato on Navier-Stokes equations.

Marco Cannone (1997)

Revista Matemática Iberoamericana

We generalize a classical result of T. Kato on the existence of global solutions to the Navier-Stokes system in C([0,∞);L3(R3)). More precisely, we show that if the initial data are sufficiently oscillating, in a suitable Besov space, then Kato's solution exists globally. As a corollary to this result, we obtain a theory of existence of self-similar solutions for the Navier-Stokes equations.

A generalization of Aubry-Mather theory to partial differential equations and pseudo-differential equations

Rafael de la Llave, Enrico Valdinoci (2009)

Annales de l'I.H.P. Analyse non linéaire

A generalization of Ekeland's variational principle with applications.

El Amrouss, Abdel R., Tsouli, Najib (2006)

Electronic Journal of Differential Equations (EJDE) [electronic only]

A generalization of Schauder's theorem and its application to Cauchy-Kovalevskaya problem.

Zubelevich, Oleg (2003)

Electronic Journal of Differential Equations (EJDE) [electronic only]

A generalization of the Hille--Yosida theorem to the case of degenerate semigroups in locally convex spaces.

Fedorov, V.E. (2005)

Sibirskij Matematicheskij Zhurnal

A generalization of the Keller-Segel system to higher dimensions from a structural viewpoint

Fujie, Kentarou, Senba, Takasi (2017)

Proceedings of Equadiff 14

We consider initial boundary problems of a two-chemical substances chemotaxis system. In the four-dimensional setting, it was shown that solutions exist globally in time and remain bounded if the total mass is less than ${(8 π)}^{2}$ , whereas the solution emanating from some initial data of large magnitude may blows up. This result can be regarded as a generalization of the well-known $8 π$ problem in the Keller–Segel system to higher dimensions. We will compare mathematical structures of the Keller–Segel system...

A generalization of the maximum principle to nonlinear parabolic systems

Dmitry Portnyagin (2003)

Annales Polonici Mathematici

A generalization of the well-known weak maximum principle is established for a class of quasilinear strongly coupled parabolic systems with leading terms of p-Laplacian type.

A generalization of the Phragmén-Lindelöf principle for elliptic differential equations.

Göran Wanby (1978)

Mathematica Scandinavica

A generalization of the radiation condition of Sommerfeld for $N$ -body Schrödinger operators

Hiroshi Isozaki (1993)

Journées équations aux dérivées partielles

A generalization of the saddle point method with applications

Martin Schechter (1992)

Annales Polonici Mathematici

We show that one can drop an important hypothesis of the saddle point theorem without affecting the result. We then show how this leads to stronger results in applications.

A Generalization of the Schwarz Alternating Method to an Arbitrary Number of Subdomains.

Lori Badea (1987)

Numerische Mathematik

A generalization related to Schrödinger operatorswith a singular potential.

Diagana, Toka (2002)

International Journal of Mathematics and Mathematical Sciences

A generalization to the Hardy-Sobolev spaces $H^{k, p}$ of an $L^{p}$ - $L^{1}$ logarithmic type estimate

Imed Feki, Ameni Massoudi, Houda Nfata (2018)

Czechoslovak Mathematical Journal

The main purpose of this article is to give a generalization of the logarithmic-type estimate in the Hardy-Sobolev spaces $H^{k, p} (G)$ ; $k \in ℕ^{*}$ , $1 \leq p \leq \infty$ and $G$ is the open unit disk or the annulus of the complex space $ℂ$ .

Currently displaying 301 – 320 of 2279

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