Journal de Mathématiques Pures et Appliquées ( IF 2.1 ) Pub Date : 2021-07-16 , DOI: 10.1016/j.matpur.2021.07.006 Marianna Chatzakou 1, 2 , Julio Delgado 3 , Michael Ruzhansky 2, 4
In this work we study a class of anharmonic oscillators within the framework of the Weyl-Hörmander calculus. A prototype is an operator on of the form for integers ≥1. We obtain spectral properties in terms of Schatten-von Neumann classes for their negative powers and derive from them estimates on the rate of growth for the eigenvalues of the anharmonic oscillator . In particular we give a simple proof for the main term of the spectral asymptotics of these operators. We also study some examples of anharmonic oscillators arising from the analysis on Lie groups.
中文翻译:
一类非谐振荡器
在这项工作中,我们研究了 Weyl-Hörmander 微积分框架内的一类非谐振荡器。原型是一个操作符 形式的 为了 整数≥1。我们根据 Schatten-von Neumann 类的负功率获得频谱特性,并从中得出对非谐波振荡器特征值增长率的估计. 特别地,我们对这些算子的谱渐近的主项给出了一个简单的证明。我们还研究了一些从李群分析中产生的非谐振荡器的例子。