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arXiv 2201.12732math.APcond-mat.dis-nnmath.PR
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平均场自旋玻璃中的Hamilton-Jacobi方程

Hamilton-Jacobi equations from mean-field spin glasses

Hong-Bin Chen, Jiaming Xia

AI总结:

本文为平均场自旋玻璃模型中的Hamilton-Jacobi方程建立了粘性解理论,证明了比较原理与解的存在性,并表明两类已知解均为粘性解。

摘要:

我们赋予平均场自旋玻璃模型中产生的Hamilton-Jacobi方程在粘性意义下的含义,并建立相应的适定性。这些方程最初定义在单调概率测度集合上,通过等距同构,可以被解释为定义在希尔伯特空间中一个具有空内部的无限维闭凸锥上。我们证明了比较原理,以及有限维逼近的收敛性,从而提供了解的存在性。在额外的凸性条件下,我们证明了解可以用Hopf-Lax公式的一个版本或锥上的Hopf公式来表示。此前,考虑了两类解的概念,一类直接定义为Hopf-Lax公式,另一类作为有限维逼近的极限。它们已被证明描述了一大类平均场自旋玻璃模型中的极限自由能。这项工作表明这两类解都是粘性解。

英文摘要:

We give a meaning to the Hamilton--Jacobi equation arising from mean-field spin glass models in the viscosity sense, and establish the corresponding well-posedness. Originally defined on the set of monotone probability measures, these equations can be interpreted, via an isometry, to be defined on an infinite-dimensional closed convex cone with an empty interior in a Hilbert space. We prove the comparison principle, and the convergence of finite-dimensional approximations furnishing the existence of solutions. Under additional convexity conditions, we show that the solution can be represented by a version of the Hopf--Lax formula, or the Hopf formula on cones. Previously, two notions of solutions were considered, one defined directly as the Hopf--Lax formula, and another as limits of finite-dimensional approximations. They have been proven to describe the limit free energy in a wide class of mean-field spin glass models. This work shows that these two kinds of solutions are viscosity solutions.

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