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boundary conditions 1counterexample 1dirac operators 1gromov conjecture 1index theory 1manifolds with corners 1

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1 paper

math.DG2026

Remarks on the paper "On Gromov's dihedral extremality and rigidity conjectures" by Jinmin Wang, Zhizhang Xie and Guoliang Yu

Christian Baer, Bernhard Hanke, Thomas Schick

The authors present a counterexample to an index calculation used in a recent paper on self‑adjoint extensions of Dirac‑type operators on manifolds with corners, showing that the c…