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math.AP2020
Global wave parametrices on globally hyperbolic spacetimes
Matteo Capoferri, Claudio Dappiaggi, Nicolò Drago
In a recent work the first named author, Levitin and Vassiliev have constructed the wave propagator on a closed Riemannian manifold as a single oscillatory integral global both…
math.AP2018
Classification of first order sesquilinear forms
Matteo Capoferri, Nikolai Saveliev, Dmitri Vassiliev
A natural way to obtain a system of partial differential equations on a manifold is to vary a suitably defined sesquilinear form. The sesquilinear forms we study are Hermitian form…