Agmon-Kannai method for computation of heat invariants
Iosif Polterovich · arXiv (Cornell University) · 1998
Abstract. We introduce a new method for computing heat invariants an(x) of a 2-dimensional Riemannian manifold based on a result by S.Agmon and Y.Kannai. Two explicit expressions for an(x) are presented. The first one depends on the choice of a certain coordinate system; the second involves only invariant terms but has some restrictions on its validity, though in a “generic ” case it is well–defined. 1. Introduction and