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Addendum to “Singular equivariant asymptotics and Weyl’s law”

  • Pablo Ramacher EMAIL logo
Published/Copyright: February 25, 2017

Abstract

Let M be a closed Riemannian manifold carrying an effective and isometric action of a compact connected Lie group G. We derive a refined remainder estimate in the stationary phase approximation of certain oscillatory integrals on TM×G with singular critical sets that were examined in [7] in order to determine the asymptotic distribution of eigenvalues of an invariant elliptic operator on M. As an immediate consequence, we deduce from this an asymptotic multiplicity formula for families of irreducible representations in L2(M). The improved remainder is used in [4] to prove an equivariant semiclassical Weyl law and a corresponding equivariant quantum ergodicity theorem.

References

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Received: 2015-09-15
Published Online: 2017-02-25
Published in Print: 2018-12-01

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