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任意维下带反对称势的椭圆型方程组的正则性与Rivière的${GL}(m)$-规范构造

Regularity and Rivière's ${GL}(m)$-Gauge Construction for Elliptic Systems with Antisymmetric Potentials in Arbitrary Dimensions

Carolin Bayer

arXiv 2609.00826首次发表:更新:

AI 中文总结

该研究针对n≥3维带反对称势的临界椭圆型方程组,通过构造SO(m)取值的映射与Rivière的GL(m)-规范,建立(A,B)-守恒律,证明了解的连续性。

AI 中文摘要

设1 ≤ q ≤ 2,记q'为其对应的共轭指数。我们证明了n ≥ 3维下临界椭圆型方程组 -Δu = Ω·∇u 的解u ∈ W^{1,(\frac{n}{n-1},q')}(B^n, ℝ^m) 的连续性,其中势Ω ∈ L^{(n,q)}(B^n, 𝔰𝔬(m) ⊗ ∧^1) 是反对称的。首先,我们构造P ∈ W^{1,(n,q)}(B^n, SO(m)),使得该偏微分方程可重写为 -div(P^{-1}du) = *dξ·P^{-1}du,该结构在旋转P的意义下几乎是雅可比结构。其次,我们给出Rivière的GL(m)-规范以建立“完整的”(A,B)-守恒律,即 -div(Adu)=d^*B·du。

英文摘要

Let $1 \leq q \le 2$ and denote by $2 \leq q'$ its corresponding conjugate exponent. We prove the continuity of solutions $u \in W^{1,(\frac{n}{n-1},q')}(B^n, \mathbb{R}^m)$ to the critical elliptic system $-Δu = Ω\cdot \nabla u$ in dimension $n \ge 3$, where the potential $Ω\in L^{(n,q)}(B^n, \mathfrak{so}(m) \otimes \wedge^1)$ is antisymmetric. First, we construct $P \in W^{1,(n,q)}(B^n, \mathrm{SO}(m))$ such that the PDE can be rewritten as $-\operatorname{div}(P^{-1}du) = \ast dξ\cdot P^{-1}du$, which is nearly a Jacobian structure up to the rotation $P$. Second, we provide a Rivière's $\mathrm{GL}(m)$-Gauge in order to establish a "full" $(A,B)$-conservation law, i.e. $-\operatorname{div}(Adu)=d^\ast B \cdot du$. We show that the assumption on $Ω\in L^{(n,q)} (B^n, \mathfrak{so}(m) \otimes \wedge^1) $ for $q\leq 2$ is optimal.

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