scholarly journals Perturbations of globally hypoelliptic operators on closed manifolds

2018 ◽  
Vol 9 (3) ◽  
pp. 825-855 ◽  
Author(s):  
Fernando de Ávila Silva ◽  
Alexandre Kirilov
2017 ◽  
Vol 101 (115) ◽  
pp. 261-266
Author(s):  
Rachid Chaili ◽  
Tayeb Mahrouz

Considering a class of differential operators with constant coefficients including the hypoelliptic operators, we show that the comparison of the operators implies the inclusion between their spaces of Roumieu vectors.


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