Results 41 to 50 of about 727,614 (177)

Applications of anticipated BSDEs driven by time-changing Lévy noises

open access: yesJournal of Inequalities and Applications, 2016
We study a very particular anticipated BSDEs when the driver is time-changing Lévy noise. We give an estimate of the solutions in the system satisfying some non-Lipschitz conditions. Also, we state an useful comparison theorem for the solutions. At last,
Youxin Liu
doaj   +1 more source

A comparison theorem for nonsmooth nonlinear operators

open access: yes, 2019
We prove a comparison theorem for super- and sub-solutions with non-vanishing gradients to semilinear PDEs provided a nonlinearity $f$ is $L^p$ function with $p > 1$.
Kozlov, Vladimir, Nazarov, Alexander
core   +1 more source

A simple proof of the invariant torus theorem [PDF]

open access: yes, 2010
We give a simple proof of Kolmogorov's theorem on the persistence of a quasiperiodic invariant torus in Hamiltonian systems. The theorem is first reduced to a well-posed inversion problem (Herman's normal form) by switching the frequency obstruction from
Féjoz, Jacques
core   +3 more sources

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  

Dynamic behaviors of a nonautonomous predator–prey system with Holling type II schemes and a prey refuge

open access: yesAdvances in Difference Equations, 2021
In this paper, we consider a nonautonomous predator–prey model with Holling type II schemes and a prey refuge. By applying the comparison theorem of differential equations and constructing a suitable Lyapunov function, sufficient conditions that ...
Yumin Wu, Fengde Chen, Caifeng Du
doaj   +1 more source

A Comparison Theorem for Eigenfunctions [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
A comparison theorem of Sturm's type is obtained for eigenfunctions of general linear elliptic partial differential operators of second order on bounded domains of n-dimensional Euclidean space. The proof is almost immediate from an earlier identity of the author. The theorem is shown to be stronger than some recent theorems of Kurt Kreith.
openaire   +1 more source

A Note on Comparison Theorems [PDF]

open access: yesProceedings of the American Mathematical Society, 1977
Comparison theorems for solutions, for focal points and conjugate points of second order linear differential equations are given in this paper.
openaire   +1 more source

LOGARITHMIC DE RHAM COMPARISON FOR OPEN RIGID SPACES

open access: yesForum of Mathematics, Sigma, 2019
In this note, we prove the logarithmic $p$-adic comparison theorem for open rigid analytic varieties. We prove that a smooth rigid analytic variety with a strict simple normal crossing divisor is locally $K(\unicode[STIX]{x1D70B},1)$ (in a certain sense)
SHIZHANG LI, XUANYU PAN
doaj   +1 more source

A comparison theorem for simplicial resolutions

open access: yes, 2007
It is well known that Barr and Beck's definition of comonadic homology makes sense also with a functor of coefficients taking values in a semi-abelian category instead of an abelian one.
Goedecke, Julia, Van der Linden, Tim
core   +4 more sources

On Montessus de Ballore’s theorem for simultaneous Padé-Faber approximants

open access: yesDemonstratio Mathematica, 2018
We consider row sequences of vector valued Padé-Faber approximants (simultaneous Padé-Faber approximants) and prove a Montessus de Ballore type theorem.
Bosuwan Nattapong
doaj   +1 more source

Home - About - Disclaimer - Privacy