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arXiv 2106.04412math.AP
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非局部双相方程的弱解和黏性解

On weak and viscosity solutions of nonlocal double phase equations

Yuzhou Fang, Chao Zhang

摘要:

考虑非局部双相方程\begin{align*} \mathrm{P.V.} &\int_{\mathbb{R}^n}|u(x)-u(y)|^{p-2}(u(x)-u(y))K_{sp}(x,y)\,dy\\ &+\mathrm{P.V.} \int_{\mathbb{R}^n} a(x,y)|u(x)-u(y)|^{q-2}(u(x)-u(y))K_{tq}(x,y)\,dy=0, \end{align*},其中$1<p\leq q$和调制系数$a(\cdot,\cdot)\geq0$ .在适当的假设下,首先利用De Giorgi-Nash-Moser方法得到了方程有界弱解的局部Hölder连续性,然后建立了方程弱解与黏性解之间的关系.

英文摘要:

We consider the nonlocal double phase equation \begin{align*} \mathrm{P.V.} &\int_{\mathbb{R}^n}|u(x)-u(y)|^{p-2}(u(x)-u(y))K_{sp}(x,y)\,dy\\ &+\mathrm{P.V.} \int_{\mathbb{R}^n} a(x,y)|u(x)-u(y)|^{q-2}(u(x)-u(y))K_{tq}(x,y)\,dy=0, \end{align*} where $1<p\leq q$ and the modulating coefficient $a(\cdot,\cdot)\geq0$. Under some suitable hypotheses, we first use the De Giorgi-Nash-Moser methods to derive the local Hölder continuity for bounded weak solutions, and then establish the relationship between weak solutions and viscosity solutions to such equations.

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