3 papers
math.DG2025
Sandwich operators and Einstein deformations of compact symmetric spaces related to Jordan algebras
Stuart James Hall, Paul Schwahn, Uwe Semmelmann
We study the deformability of the symmetric Einstein metrics on the spaces and , thereby concluding the problem to s…
math.DG2024
Submersion constructions for geometries with parallel skew torsion
Andrei Moroianu, Paul Schwahn
In the absence of a de Rham decomposition theorem for geometries with torsion, we develop and unify ways to view a geometry with parallel skew torsion as the total space of a local…
math.DG2020
Stability of Einstein metrics on symmetric spaces of compact type
Paul Schwahn
We prove the linear stability with respect to the Einstein-Hilbert action of the symmetric spaces , , and . Combined with earlier results, this res…