Results 41 to 50 of about 74,240 (211)

Quadratic BSDEs with Singular Generators and Unbounded Terminal Conditions: Theory and Applications

open access: yesMathematics
We investigate a class of quadratic backward stochastic differential equations (BSDEs) with generators that are singular in y. First, we establish the existence of solutions and a comparison theorem, thereby extending the existing results in the ...
Wenbo Wang, Guangyan Jia
doaj   +1 more source

Toponogov's triangle comparison theorem in model spaces of nonconstant curvature [PDF]

open access: yes, 1997
So far there exist two versions of Toponogov's triangle comparison theorem with surfaces of revolution as model spaces. U. Abresch has considered surfaces of nonpositive curvature and D.
Kürzel, Matthias
core   +1 more source

Existence Solution for Fractional Mean-Field Backward Stochastic Differential Equation with Stochastic Linear Growth Coefficients

open access: yesMendel, 2023
We deal with fractional mean field backwardWe deal with fractional mean field backward stochastic differential equations with hurst parameter $H\in (\frac{1}{2},1)$ when the coefficient $f$ satisfy a stochastic Lipschitz conditions, we prove the ...
Mostapha Abdelouahab Saouli
doaj   +1 more source

Variational comparison theorem and perturbations of nonlinear systems [PDF]

open access: yes, 1975
By employing vector Lyapunov-like functions and the theory of systems of differential inequalities, a variational comparison theorem and generalized variation of constants formula are developed.
G. S. Ladde
core   +1 more source

Boltzmann's H-theorem, its limitations, and the birth of (fully) statistical mechanics [PDF]

open access: yes, 2008
A comparison is made of the traditional Loschmidt (reversibility) and Zermelo (recurrence) objections to Boltzmann's H-theorem, and its simplified variant in the Ehrenfests' 1912 wind-tree model.
Myrvold, Wayne, Brown, Harvey R.
core  

The Primitive Comparison Theorem in characteristic $p$ [PDF]

open access: yes
We prove an analogue of Scholze\u27s Primitive Comparison Theorem for proper rigid spaces over an algebraically closed non-archimedean field $K$ of characteristic $p$.
Heuer, Ben
core   +2 more sources

A Quantitative Comparison Theorem For Nonlinear Equations [PDF]

open access: yes, 2007
this paper is to establish a quantitative comparison theorem in which the effect of p i and q i is taken into account. This quantitative comparison theorem is more delicate than Theorem A in [10], and also provides some further applications to the non ...
Xiaodong Zhu
core  

Oscillation of solutions to fourth-order trinomial delay differential equations

open access: yesElectronic Journal of Differential Equations, 2015
The objective of this article is to study the oscillation properties of the solutions to the fourth-order linear trinomial delay differential equation $$ y^{(4)}(t)+p(t)y'(t)+q(t)y(\tau(t))=0.
Jozef Dzurina   +2 more
doaj  

On the comparison theorem for multidimensional BSDEs [PDF]

open access: yes, 2006
International audienceIn this Note, we give a necessary and sufficient condition under which the comparison theorem holds for multidimensional backward stochastic differential equations (BSDEs) and for matrix-valued ...
Ying Hu   +3 more
core   +1 more source

Addendum to Methods of extending lower order problems to higher order problems in the context of smallest eigenvalue comparisons

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
This paper serves as an addendum to the paper titled Methods of extending lower order problems to higher order problems in the context of smallest eigenvalue comparisons appearing in EJQTDE no. 99, 2011.
Jeffrey Neugebauer
doaj   +1 more source

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