2 papers
math.DG2025
The G-signature Theorem on Witt spaces
Markus Banagl, Eric Leichtnam, Paolo Piazza
Let G be a compact Lie group and let X be an oriented Witt G-pseudomanifold. Using intersection cohomology it is possible to define Sign(G,X) in R(G), the G-signature of X. Let g b…
math.AP2024
On complex algebraic singularities of some genuinely nonlinear PDEs
Denys Dutykh, Éric Leichtnam
In this manuscript, we highlight a new phenomenon of complex algebraic singularity formation for solutions of a large class of genuinely nonlinear partial differential equations (P…