14 citations · 19 across the 6 of their papers we have counts for
6 papers
Bisingular pseudodifferential operators on products of compact Lie groups
G. Drei, S. Federico, A. Parmeggiani
In this paper we develop the calculus of bisingular pseudodifferential operators on the product compact Lie groups, which extends the one that was earlier introduced by the…
On a class of pseudodifferential operators on the product of compact Lie groups
Serena Federico, Alberto Parmeggiani
In this paper a bisingular pseudodifferential calculus, along the lines of the one introduced by L. Rodino in [12], is developed in the global setting of a product of compact Lie g…
The non-isentropic Einstein-Euler system written in a symmetric hyperbolic form
Uwe Brauer, Lavi Karp
We cast the non--isentropic relativistic Euler system into a symmetric hyperbolic form. Such systems are very suited to treat initial value problems of hyperbolic type. We obtain t…
On the Local solvability of a class of degenerate second order operators with complex coefficients
Serena Federico, Alberto Parmeggiani
We study the local solvability of a class of operators with multiple characteristics. The class considered here complements and extends the one studied in [9], in that in this pape…
Global Gevrey hypoellipticity for the twisted Laplacian on forms
Wei-Xi Li, Alberto Parmeggiani, Yan-Lin Wang
We study in this paper the global hypoellipticity property in the Gevrey category for the generalized twisted Laplacian on forms. Different from the 0-form case, where the twisted…
Semiclassical hypoelliptic estimates with a big loss of derivatives
Alberto Parmeggiani, Karel Pravda-Starov
We study the pseudospectral properties of general pseudodifferential operators around a doubly characteristic point and provide necessary and sufficient conditions for semiclassica…