Displaying similar documents to “Some estimates on exponentials of solutions to stochastic differential equations.”

Resolvents, integral equations, limit sets

Theodore Allen Burton, D. P. Dwiggins (2010)

Mathematica Bohemica

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In this paper we study a linear integral equation x ( t ) = a ( t ) - 0 t C ( t , s ) x ( s ) d s , its resolvent equation R ( t , s ) = C ( t , s ) - s t C ( t , u ) R ( u , s ) d u , the variation of parameters formula x ( t ) = a ( t ) - 0 t R ( t , s ) a ( s ) d s , and a perturbed equation. The kernel, C ( t , s ) , satisfies classical smoothness and sign conditions assumed in many real-world problems. We study the effects of perturbations of C and also the limit sets of the resolvent. These results lead us to the study of nonlinear perturbations.

Nonmonotone nonconvolution functions of positive type and applications

Tomáš Bárta (2012)

Commentationes Mathematicae Universitatis Carolinae

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We present two sufficient conditions for nonconvolution kernels to be of positive type. We apply the results to obtain stability for one-dimensional models of chemically reacting viscoelastic materials.