Results 1 to 10 of about 420,413 (259)

Generalized Space-Time Fractional Stochastic Kinetic Equation

open access: yesFractal and Fractional, 2022
In this paper, we study a class of nonlinear space-time fractional stochastic kinetic equations in Rd with Gaussian noise which is white in time and homogeneous in space.
Junfeng Liu, Zhigang Yao, Bin Zhang
doaj   +1 more source

Fractional integrals and hypersingular integrals in variable order Hölder spaces on homogeneous spaces

open access: yesJournal of Function Spaces and Applications, 2010
We consider non-standard Hölder spaces Hλ(⋅)(X) of functions f on a metric measure space (X, d, μ), whose Hölder exponent λ(x) is variable, depending on x ∈ X.
Natasha Samko   +2 more
doaj   +1 more source

Optimal partial regularity of very weak solutions to nonhomogeneous A-harmonic systems

open access: yesJournal of Inequalities and Applications, 2017
We study partial regularity of very weak solutions to some nonhomogeneous A-harmonic systems. To obtain the reverse Hölder inequality of the gradient of a very weak solution, we construct a suitable test function by Hodge decomposition.
Qing Zhao, Shuhong Chen
doaj   +1 more source

Geometry and Measurement in Otto Hölder’s Epistemology

open access: yesPhilosophia Scientiæ, 2013
The aim of the paper is to analyze Hölder’s understanding of geometry and measurement presented in Intuition and Reasoning [Hölder 1900], “The Axioms of Quantity and the Theory of Measurement” [Hölder 1901], and The Mathematical Method [Hölder 1924]. The
Paola Cantù
doaj   +1 more source

Spherically Restricted Random Hyperbolic Diffusion

open access: yesEntropy, 2020
This paper investigates solutions of hyperbolic diffusion equations in R 3 with random initial conditions. The solutions are given as spatial-temporal random fields. Their restrictions to the unit sphere S 2 are studied.
Philip Broadbridge   +4 more
doaj   +1 more source

Partial continuity for a class of elliptic systems with non-standard growth

open access: yesElectronic Journal of Differential Equations, 2016
We study partial Holder continuity of weak solutions to elliptic systems with variable non-standard growth, which are related to the function $\Phi(x,t):=t^{p(x)}\log(e+t)$. We prove that weak solutions are Holder continuous for any Holder exponent,
Jihoon Ok
doaj  

Holder continuity with exponent (1+alpha)/2 in the time variable for solutions of parabolic equations

open access: yesElectronic Journal of Differential Equations, 2015
We consider the regularity of solutions for some parabolic equations. We show Holder continuity with exponent $(1+\alpha )/2$, with respect to the time variable, when the gradient in the space variable of the solution has the Holder continuity with ...
Junichi Aramaki
doaj  

Hölder continuity of weak solution to a nonlinear problem with non-standard growth conditions

open access: yesBoundary Value Problems, 2018
We study the Hölder continuity of weak solution u to an equation arising in the stationary motion of electrorheological fluids. To this end, we first obtain higher integrability of Du in our case by establishing a reverse Hölder inequality.
Zhong Tan, Jianfeng Zhou, Wenxuan Zheng
doaj   +1 more source

Multidimensional Linear and Nonlinear Partial Integro-Differential Equation in Bessel Potential Spaces with Applications in Option Pricing

open access: yesMathematics, 2021
The purpose of this paper is to analyze solutions of a non-local nonlinear partial integro-differential equation (PIDE) in multidimensional spaces. Such class of PIDE often arises in financial modeling.
Daniel Ševčovič   +1 more
doaj   +1 more source

Hölder continuity for second order non variational parabolic systems

open access: yesLe Matematiche, 1998
See directly the ...
Maria Stella Fanciullo
doaj  

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