Results 31 to 40 of about 963 (56)

Lifshits Tails for Squared Potentials

open access: yes, 2018
We consider Schr\"odinger operators with a random potential which is the square of an alloy-type potential. We investigate their integrated density of states and prove Lifshits tails.
Kirsch, Werner, Raikov, Georgi
core   +1 more source

Non-Existence of Positive Stationary Solutions for a Class of Semi-Linear PDEs with Random Coefficients

open access: yes, 2010
We consider a so-called random obstacle model for the motion of a hypersurface through a field of random obstacles, driven by a constant driving field. The resulting semi-linear parabolic PDE with random coefficients does not admit a global nonnegative ...
G. R. Grimmett   +7 more
core   +3 more sources

Strict solutions to stochastic parabolic evolution equations in M-type 2 Banach spaces

open access: yes, 2017
We study a stochastic linear evolution equation $dX+A(t)Xdt=F(t)dt+ G(t)dw_t$ in a Banach space of M-type 2. We construct unique strict solutions to the equation on the basis of the theory of deterministic linear evolution equations. The abstract results
Ta, Ton Viet   +2 more
core   +1 more source

Some variance reduction methods for numerical stochastic homogenization

open access: yes, 2015
We overview a series of recent works devoted to variance reduction techniques for numerical stochastic homogenization. Numerical homogenization requires solving a set of problems at the micro scale, the so-called corrector problems.
Blanc, Xavier   +2 more
core   +2 more sources

Well-posedness of the non-local conservation law by stochastic perturbation

open access: yes, 2019
Stochastic non-local conservation law equation in the presence of discontinuous flux functions is considered in an $L^{1}\cap L^{2}$ setting. The flux function is assumed bounded and integrable (spatial variable).
Olivera, Christian
core   +1 more source

Global solutions of aggregation equations and other flows with random diffusion. [PDF]

open access: yesProbab Theory Relat Fields, 2023
Rosenzweig M, Staffilani G.
europepmc   +1 more source

Some non-linear s.p.d.e.'s that are second order in time

open access: yes, 2002
We extend Walsh's theory of martingale measures in order to deal with hyperbolic stochastic partial differential equations that are second order in time, such as the wave equation and the beam equation, and driven by spatially homogeneous Gaussian noise.
Dalang, Robert C., Mueller, Carl
core   +2 more sources

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