Results 101 to 110 of about 125 (118)

On global analytic and Gevrey hypoellipticity on the torus and the Métivier inequality

Communications in Partial Differential Equations, 2017
Gregorio Chinni
exaly  

Hypoellipticity for ∂̄

2007
openaire   +1 more source

Comparison of polynomials and almost hypoellipticity

Journal of Contemporary Mathematical Analysis, 2012
V N Margaryan, Margaryan V N
exaly  

Hypoellipticity

1997
openaire   +1 more source

HYPOELLIPTICITY OF NONSINGULAR CLOSED 1-FORMS ON COMPACT MANIFOLDS

Communications in Partial Differential Equations, 2002
Abdelhamid Meziani
exaly  

Global Gevrey hypoellipticity on the torus for a class of systems of complex vector fields

Journal of Mathematical Analysis and Applications, 2019
Alexandre Kirilov, Cleber Medeira, Alexandre Arias Junior   +2 more
exaly  

A remark on the stability of $$C^\infty $$ C ∞ -hypoellipticity under lower-order perturbations

Journal of Pseudo-Differential Operators and Applications, 2015
Alberto Parmeggiani, Parmeggiani Alberto   +1 more
exaly  

Hypoelliptic Operators

Mathematische Nachrichten, 1980
openaire   +1 more source

Analytic and Gevrey hypoellipticity for perturbed sums of squares operators

Annali Di Matematica Pura Ed Applicata, 2017
Antonio Bove, Gregorio Chinni, Bove Antonio   +2 more
exaly  

Hypoellipticity of certain infinitely degenerate second order operators

Journal of Mathematical Analysis and Applications, 2014
Cristian Rios
exaly