%0 Journal Article
%T Negative spectra of elliptic operators
%A Stanislav Molchanov
%A Oleg Safronov
%J Bulletin of Mathematical Sciences
%@ 1664-3615
%D 2012
%I Springer
%R 10.1007/s13373-012-0025-8
%X We establish different estimates for the sums of negative eigenvalues of elliptic operators. Our proofs are based on a property of the eigenvalue sums that might be viewed as a certain convexity with respect to the perturbation.
%U http://link.springer.com/article/10.1007/s13373-012-0025-8