Results 31 to 40 of about 103,412 (240)

Moduli of Continuity for Exponential Lipschitz Classes [PDF]

open access: yesTransactions of the American Mathematical Society, 1977
Let Ψ \Psi be a convex function, and let f be a real-valued function on [0, 1]. Let a modulus of continuity associated to Ψ \Psi be given as \[ Q Ψ ( δ , f ) = inf { λ :
openaire   +1 more source

Nonexplosion and Pathwise Uniqueness of Stochastic Differential Equation Driven by Continuous Semimartingale with Non-Lipschitz Coefficients

open access: yesJournal of Mathematics, 2015
We study a class of stochastic differential equations driven by semimartingale with non-Lipschitz coefficients. New sufficient conditions on the strong uniqueness and the nonexplosion are derived for d-dimensional stochastic differential equations on Rd (
Jinxia Wang
doaj   +1 more source

Quasi-Copulas, Copulas and Fuzzy Implicators

open access: yesInternational Journal of Computational Intelligence Systems, 2020
In this paper, we study relations between fuzzy implicators and some kinds of fuzzy conjunctors, in particular, quasi-copulas and copulas. We show that there is a one-to-one correspondence between the classes of all quasi-copulas and 1-Lipschitz fuzzy ...
Radko Mesiar, Anna Kolesárová
doaj   +1 more source

Lipschitz classes and the Hardy-Littlewood property

open access: yesMonatshefte für Mathematik, 1993
A proper subdomain \(D\) of \(\mathbb{C}\) has the Hardy-Littlewood property if there is a constant \(k\) such that for any \(\beta\in(0,1]\) and any \(f\) analytic in \(D\) with \(| f'(z)|\leq m d(z,D)^{\beta-1}\) in \(D\) we have the Hölder condition (*) \(| f(z_ 1)-f(z_ 2)|\leq M| z_ 1-z_ 2|^ \beta\) in \(D\) with \(M=km/\beta\). If \(D\) satisfies (
Hag, K.   +3 more
openaire   +2 more sources

Contact equations, Lipschitz extensions and isoperimetric inequalities

open access: yes, 2009
We characterize locally Lipschitz mappings and existence of Lipschitz extensions through a first order nonlinear system of PDEs. We extend this study to graded group-valued Lipschitz mappings defined on compact Riemannian manifolds.
Magnani, Valentino
core   +2 more sources

Existence and Uniqueness of Solutions to Neutral Stochastic Functional Differential Equations with Poisson Jumps

open access: yesAbstract and Applied Analysis, 2012
A class of neutral stochastic functional differential equations with Poisson jumps (NSFDEwPJs), d[x(t)-G(xt)]=f(xt, t)dt+g(xt,t)dW(t)+h(xt,t)dN(t), t∈[t0,T], with initial value xt0=ξ={ξ(θ):-τ≤θ≤0}, is investigated.
Jianguo Tan, Hongli Wang, Yongfeng Guo
doaj   +1 more source

Lipschitz class, narrow class, and counting lattice points [PDF]

open access: yesProceedings of the American Mathematical Society, 2011
A well-known principle says that the number of lattice points in a bounded subset S S of Euclidean space is about the ratio of the volume and the lattice determinant, subject to some relatively mild conditions on S S .
openaire   +2 more sources

A goodness‐of‐fit test for regression models with discrete outcomes

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Regression models are often used to analyze discrete outcomes, but classical goodness‐of‐fit tests such as those based on the deviance or Pearson's statistic can be misleading or have little power in this context. To address this issue, we propose a new test, inspired by the work of Czado et al.
Lu Yang   +2 more
wiley   +1 more source

Approximate solutions for a class of doubly perturbed stochastic differential equations

open access: yesAdvances in Difference Equations, 2018
In this paper, we study the Carathéodory approximate solution for a class of doubly perturbed stochastic differential equations (DPSDEs). Based on the Carathéodory approximation procedure, we prove that DPSDEs have a unique solution and show that the ...
Wei Mao, Liangjian Hu, Xuerong Mao
doaj   +1 more source

Existence and multiplications of solutions for a class of equation with a non-smooth potential [PDF]

open access: yesJournal of Hyperstructures, 2015
This paper deals with the existence and multiplicity of solutions for a class of nonlocal p−Kirchhoff problem. Using the mountain pass theorem and fountain theorem, we establish the existence of at least one solution and infinitely many solutions for a ...
Fariba Fattahi, M. Alimohammady
doaj   +1 more source

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