3 papers
math.AP2026
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…
math.AP2018
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…
math.AP2018
Sufficient conditions for local solvability of some degenerate PDO with complex subprincipal symbol
Serena Federico
We will show a local solvability result for a class of degenerate second order linear partial differential operators with a complex subprincipal symbol. Due to the form of the oper…