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math.AP2010
Multi-anisotropic gevrey regularity of hypoelliptic operators
Chikh Bouzar, Ahmed Dali
We show a multi-anisotropic Gevrey regularity of solutions of hypoelliptic equations. This result is a precision of a classical result of Hörmander
math.AP2006
A pseudodifferential Hormander's inequality
Chikh Bouzar
The classical Hormander's inequality for linear partial differential operators with constant coeffcients is extended to pseudodifferential operators.