B. Helffer and D. Robert, “Riesz Means of Bound States and Semicalassical Limit Connected with a Lieb-Thirring’s Conjecture,” Asymptotic Analysis, Vol. 3, No. 2, 1990, pp. 91-103.
has been cited by the following article:
TITLE: Riesz Means of Dirichlet Eigenvalues for the Sub-Laplace Operator on the Engel Group
AUTHORS: Jingjing Xue
KEYWORDS: Engel Group; Sub-Laplace Operator; Eigenvalues; Riesz Mean
JOURNAL NAME: Advances in Pure Mathematics, Vol.3 No.9B, December 24, 2013
ABSTRACT: In this paper, we are concerned with the Riesz means of Dirichlet eigenvalues for the sub-Laplace operator on the Engel group and deriver different inequalities for Riesz means. The Weyl-type estimates for means of eigenvalues are given.