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math.DG2023★ 1 cited
A note on the shifted Courant-Nijenhuis torsion
Marco Aldi, Sergio Da Silva, Daniele Grandini
We characterize the vanishing of the shifted Courant-Nijenhuis torsion as the strongest tensorial integrability condition that can be imposed on a skew-symmetric endomorphism of th…
math.LO2023
Sparse systems of functions and quasi-analytic classes
Marco Aldi, Jeffrey Buffkin, Cody Cline +1
We provide a new characterization of quasi-analyticity of Denjoy-Carleman classes, related to \emph{Wetzel's Problem}. We also completely resolve which Denjoy-Carleman classes carr…