Results 11 to 20 of about 6,399 (264)

A regularized gradient flow for the p-elastic energy

open access: yesAdvances in Nonlinear Analysis, 2022
We prove long-time existence for the negative L2{L}^{2}-gradient flow of the p-elastic energy, p≥2p\ge 2, with an additive positive multiple of the length of the curve.
Blatt Simon   +2 more
doaj   +1 more source

The Peregrine Breather on the Zero-Background Limit as the Two-Soliton Degenerate Solution: An Experimental Study

open access: yesFrontiers in Physics, 2021
Solitons are coherent structures that describe the nonlinear evolution of wave localizations in hydrodynamics, optics, plasma and Bose-Einstein condensates.
Amin Chabchoub   +12 more
doaj   +1 more source

DEGENERATE DISTRIBUTED CONTROL SYSTEMS WITH FRACTIONAL TIME DERIVATIVE

open access: yesUral Mathematical Journal, 2016
The existence of a unique strong solution for the Cauchy problem to semilinear nondegenerate fractional differential equation and for the generalized Showalter–Sidorov problem to semilinear fractional differential equation with degenerate operator at the
Marina V. Plekhanova
doaj   +1 more source

Two-Scale Homogenization of Implicit Degenerate Evolution Equations

open access: yesJournal of Mathematical Analysis and Applications, 1997
In the framework of two-scale convergence for homogenization of partial differential equations with periodic coefficients, the authors show how the two-scale method can also be applied to evolution equations, including degenerate and implicit equations, where the coefficients are \(\varepsilon\)-periodic in the space variable.
Clark, G.W., Packer, L.A.
openaire   +2 more sources

Stochastic models associated to a Nonlocal Porous Medium Equation

open access: yesModern Stochastics: Theory and Applications, 2018
The nonlocal porous medium equation considered in this paper is a degenerate nonlinear evolution equation involving a space pseudo-differential operator of fractional order.
Alessandro De Gregorio
doaj   +1 more source

Multi-Term Fractional Degenerate Evolution Equations and Optimal Control Problems

open access: yesMathematics, 2020
A theorem on unique solvability in the sense of the strong solutions is proved for a class of degenerate multi-term fractional equations in Banach spaces.
Marina Plekhanova, Guzel Baybulatova
doaj   +1 more source

On a nonlinear degenerate evolution equation with strong damping

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
In this paper we consider the nonlinear degenerate evolution equation with strong damping,(*)      {K(x,t)utt−Δu−Δut+F(u)=0   in   Q=Ω×]0,T[u(x,0)=u0,   (ku′)(x,0)=0   in   Ωu(x,t)=0           on   ∑=Γ×]0,T[where K is a function with K(x,t)≥0, K(x,0)=0 ...
Jorge Ferreira   +1 more
doaj   +1 more source

Early evolution of fully convective stars in scalar–tensor gravity

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
In this work, the early evolution of low-mass fully convective stars is studied in the context of DHOST (degenerate higher order scalar-tensor) theories of gravity.
Débora Aguiar Gomes, Aneta Wojnar
doaj   +1 more source

Evolution Equations for Non-Degenerate 2-Forms [PDF]

open access: yesInternational Mathematics Research Notices, 2019
AbstractIn this paper we introduce several geometric flows that evolve primarily non-degenerate 2-forms, with the motivation to develop a geometric flow to approach the existence of the symplectic forms on a compact manifold that supports a non-degenerate 2-form.
openaire   +1 more source

Regularity for degenerate evolution equations with strong absorption [PDF]

open access: yesJournal of Differential Equations, 2018
In this manuscript, we study geometric regularity estimates for degenerate parabolic equations of $p$-Laplacian type ($2 \leq p< \infty$) under a strong absorption condition: $ _p u - \frac{\partial u}{\partial t} = _0 u_{+}^q \quad \mbox{in} \quad _T \defeq \times (0, T), $ where $0 \leq q < 1$ and $ _0$ is a function bounded away from ...
João Vitor da Silva   +2 more
openaire   +4 more sources

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