We study the local and semi-global solvability of a class of operators with multiple characteristics. The main point is a result on propagation of singularities. It is shown that the solvability occurs with a loss of derivatives related to the order of characteristics.
On the Solvability of a Class of ψdos with Multiple Characteristics
PARENTI, CESARE;PARMEGGIANI, ALBERTO
2014
Abstract
We study the local and semi-global solvability of a class of operators with multiple characteristics. The main point is a result on propagation of singularities. It is shown that the solvability occurs with a loss of derivatives related to the order of characteristics.File in questo prodotto:
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