34 citations · 206 across the 41 of their papers we have counts for
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math.DG2004★ 2 cited
A new proof of the local regularity of the eta invariant of a Dirac operator
Raphael Ponge
In this paper we give a new proof of Bismut-Freed's result on the local regularity of the eta invariant of a Dirac operator in odd dimension.
math.DG2004★ 11 cited
The tangent groupoid of a Heisenberg manifold
Raphael Ponge
As a step toward proving an index theorem for hypoelliptic operators Heisenberg manifolds, including those on CR and contact manifolds, we construct an analogue for Heisenberg mani…