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arxiv: 2503.01384 · v1 · pith:2GCXNL6Enew · submitted 2025-03-03 · 🧮 math.AP

On the stability of the critical p-Laplace equation

classification 🧮 math.AP
keywords equationbubblingcompletelycriticallaplacemathbbquantitativeresult
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For $1<p<n$, it is well-known that non-negative, energy weak solutions to $\Delta_p u + u^{p^{\ast}-1} =0$ in $\mathbb{R}^n$ are completely classified. Moreover, due to a fundamental result by Struwe and its extensions, this classification is stable up to bubbling. In the present work, we investigate the stability of perturbations of the critical $p$-Laplace equation for any $1<p<n$, under a condition that prevents bubbling. In particular, we show that any solution $u \in \mathcal{D}^{1,p}(\mathbb{R}^n)$ to such a perturbed equation must be quantitatively close to a bubble. This result generalizes a recent work by the first author, together with Figalli and Maggi (Int. Math. Res. Not. IMRN 2018 (2018), no. 21, 6780-6797), in which a sharp quantitative estimate was established for $p=2$. However, our analysis differs completely from theirs and is based on a quantitative $P$-function approach.

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Cited by 2 Pith papers

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  1. On the classification of solutions to a class of $N$-Liouville equations in $\mathbb{R}^N$

    math.AP 2026-04 unverdicted novelty 7.0

    A P-function approach classifies all solutions to the weighted N-Liouville equation for N=2 and all α>-1, and for N≥3 when -1<α≤0, proving uniqueness of radial solutions in that range.

  2. On the anisotropic critical $p$-Laplace equation: classification, decomposition, and stability results

    math.AP 2026-04 unverdicted novelty 6.0

    The paper establishes an anisotropic Struwe decomposition with bubble interaction estimates, a short classification proof, and quantitative stability for perturbations of the anisotropic critical p-Laplace equation.