Results 21 to 30 of about 240,138 (261)

On a pseudo-Volterra nonhomogeneous integral equation

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In this paper the issues of the solvability of a pseudo-Volterra nonhomogeneous integral equation of the second kind are studied. The solution to the corresponding homogeneous equation and the classes of the uniqueness of the solution are found in [1 ...
M.T. Kosmakova   +3 more
doaj   +1 more source

A nonlinear Bismut-Elworthy formula for HJB equations with quadratic Hamiltonian in Banach spaces [PDF]

open access: yes, 2019
We consider a Backward Stochastic Differential Equation (BSDE for short) in a Markovian framework for the pair of processes $(Y,Z)$, with generator with quadratic growth with respect to $Z$.
Addona, Davide   +2 more
core   +2 more sources

Frames of solutions and discrete analysis of pseudo‐differential equations

open access: yesMathematical Methods in the Applied Sciences, 2022
We construct discrete analogs of multidimensional singular integral operators and study their invertibility. Moreover, we give a comparison between continual and discrete case. We give the theory of periodic Riemann problem also, because it is needed for studying invertibility of so‐called paired equations.
Alexander V. Vasilyev   +2 more
openaire   +1 more source

Absorbing boundary conditions for the Westervelt equation [PDF]

open access: yes, 2014
The focus of this work is on the construction of a family of nonlinear absorbing boundary conditions for the Westervelt equation in one and two space dimensions.
A. Majda   +31 more
core   +1 more source

Homogenization of a pseudo-parabolic system via a spatial-temporal decoupling: Upscaling and corrector estimates for perforated domains

open access: yesMathematics in Engineering, 2019
We determine corrector estimates quantifying the convergence speed of the upscaling of a pseudo-parabolic system containing drift terms incorporating the separation of length scales with relative size $\epsilon\ll1$.
Arthur. J. Vromans   +2 more
doaj   +1 more source

A conservative exponential integrators method for fractional conservative differential equations

open access: yesAIMS Mathematics, 2023
The paper constructs a conservative Fourier pseudo-spectral scheme for some conservative fractional partial differential equations. The scheme is obtained by using the exponential time difference averaged vector field method to approximate the time ...
Yayun Fu , Mengyue Shi
doaj   +1 more source

Almost Automorphic and Pseudo-Almost Automorphic Solutions to Semilinear Evolution Equations with Nondense Domain

open access: yesJournal of Inequalities and Applications, 2009
We study the existence and uniqueness of almost automorphic (resp., pseudo-almost automorphic) solutions to a first-order differential equation with linear part dominated by a Hille-Yosida type operator with nondense domain.
Bruno de Andrade, Claudio Cuevas
doaj   +2 more sources

When is a pseudo-differential equation solvable ? [PDF]

open access: yesAnnales de l'Institut Fourier, 2000
This paper begins with a broad survey of the state of the art in matters of solvability for differential and pseudo-differential equations. Then we proceed with a Hilbertian lemma which we use to prove a new solvability result.
openaire   +2 more sources

Darboux-Backlund Derivation of Rational Solutions of the Painleve IV Equation

open access: yes, 2009
Rational solutions of the Painleve IV equation are constructed in the setting of pseudo-differential Lax formalism describing AKNS hierarchy subject to the additional non-isospectral Virasoro symmetry constraint.
Aratyn, H.   +2 more
core   +1 more source

The Moyal bracket and the dispersionless limit of the KP hierarchy [PDF]

open access: yes, 1994
A new Lax equation is introduced for the KP hierarchy which avoids the use of pseudo-differential operators, as used in the Sato approach. This Lax equation is closer to that used in the study of the dispersionless KP hierarchy, and is obtained by ...
Arveson W   +23 more
core   +2 more sources

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