Results 11 to 20 of about 81 (49)

Approximation of Bayesian inverse problems for PDEs [PDF]

open access: yes, 2009
Inverse problems are often ill posed, with solutions that depend sensitively on data. In any numerical approach to the solution of such problems, regularization of some form is needed to counteract the resulting instability.
A. M. Stuart   +3 more
core   +5 more sources

Impulsive nonlocal nonlinear parabolic differential problems

open access: yesInternational Journal of Stochastic Analysis, Volume 6, Issue 3, Page 247-260, 1993., 1993
The aim of the paper is to prove a theorem about a weak impulsive nonlinear parabolic differential inequality together with weak impulsive nonlocal nonlinear inequalities. A weak maximum principle for an impulsive nonlinear parabolic differential inequality together with weak impulsive nonlocal nonlinear inequalities and an uniqueness criterion for the
Ludwik Byszewski
wiley   +1 more source

On the Cauchy problem for semilinear elliptic equations [PDF]

open access: yes, 2016
We study the Cauchy problem for non-linear (semilinear) elliptic partial differential equations in Hilbert spaces. The problem is severely ill-posed in the sense of Hadamard.
Binh, TT, Lesnic, D, Taun, NH, Viet, TQ
core   +1 more source

Existence of a solution of a Fourier nonlocal quasilinear parabolic problem

open access: yesInternational Journal of Stochastic Analysis, Volume 5, Issue 1, Page 43-67, 1992., 1991
The aim of this paper is to give a theorem about the existence of a classical solution of a Fourier third nonlocal quasilinear parabolic problem. To prove this theorem, Schauder′s theorem is used. The paper is a continuation of papers [1]‐[8] and the generalizations of some results from [9]‐[11].
Ludwik Byszewski
wiley   +1 more source

Diffusion in a continuum model of self-propelled particles with alignment interaction [PDF]

open access: yes, 2010
In this paper, we provide the $O(\epsilon)$ corrections to the hydrodynamic model derived by Degond and Motsch from a kinetic version of the model by Vicsek & coauthors describing flocking biological agents.
Cercignani C.   +5 more
core   +3 more sources

Strong maximum principles for parabolic nonlinear problems with nonlocal inequalities together with integrals

open access: yesInternational Journal of Stochastic Analysis, Volume 3, Issue 1, Page 65-79, 1990., 1990
In [4] and [5], the author studied strong maximum principles for nonlinear parabolic problems with initial and nonlocal inequalities, respectively. Our purpose here is to extend results in [4] and [5] to strong maximum principles for nonlinear parabolic problems with nonlocal inequalities together with integrals.
Ludwik Byszewski
wiley   +1 more source

A mixed nonlinear time-fractional Rayleigh-Stokes equation [PDF]

open access: yes, 2022
. This paper investigates a nonlinear time-fractional Rayleigh-Stokes equation with mixed nonlinearities containing a power-type function, a logarithmic function and an inverse time-forcing term.
Au, Vo Van, Caraballo Garrido, Tomás
core   +1 more source

A new general filter regularization method for Cauchy problems for elliptic equations with a locally Lipschitz nonlinear source. [PDF]

open access: yes, 2016
Up to now, studies on the semi-linear Cauchy problem for elliptic partial differential equations needed to assume that the source term present in the governing equation is a global Lipschitz function.
Alessandrini   +39 more
core   +1 more source

An infinite-dimensional approach to path-dependent Kolmogorov equations [PDF]

open access: yes, 2016
In this paper, a Banach space framework is introduced in order to deal with finite-dimensional path-dependent stochastic differential equations. A version of Kolmogorov backward equation is formulated and solved both in the space of $L^p$ paths and in ...
Flandoli, Franco, Zanco, Giovanni
core   +2 more sources

The Cauchy problem and the martingale problem for integro-differential operators with non-smooth kernels [PDF]

open access: yes, 2009
Abels H, Kaßmann M. The Cauchy problem and the martingale problem for integro-differential operators with non-smooth kernels. Osaka journal of mathematics.
Abels, Helmut, Kassmann, Moritz
core   +2 more sources

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