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math.AP2026
Weyl Calculus on Graded Groups
Serena Federico, David Rottensteiner, Michael Ruzhansky
The aim of this paper is to establish a pseudo-differential Weyl calculus on graded nilpotent Lie groups which extends the celebrated Weyl calculus on . To reach…
math.AP2026
Boundedness of spectral multipliers on locally compact groups and applications
Santiago Gómez Cobos, Joel E. Restrepo, Michael Ruzhansky
We prove that the noncommutative Lorentz norm (associated to a semifinite von Neumann algebra) of a propagator of the form can be estimated if the modulus of th…