In this paper we prove the global $C^\infty$ and Gevrey hypoellipticity on the multidimensional torus for some classes of degenerate elliptic operators
We study the hypoellipticity for the operator (1) $P=D_{t}+i\alpha(t)b(t, X, D_{x}) $ in $\mathrm{R}...
Treves, F., [15], proved the hypoellipticity of some regular operators. Later, Hörmander, L.,[11] Du...
Let P be a linear partial differential operator with coefficients in the Gevrey class $G^s$. We prov...
In this paper we consider the problem of global analytic and Gevrey hypoellipticity and solvability ...
AbstractWe prove Gevrey regularity for a class of operators defined on the torus Tm+n, with real ana...
Let P be a linear partial differential operator with coefficients in the Gevrey class Gs(Tn) where T...
Let $P$ be a linear partial differential operator with coefficients in the Gevrey class $G^s(T^n)$ w...
AbstractLet P be a linear partial differential operator with coefficients in the Gevrey class Gs(Tn)...
Let $P$ be a linear partial differential operator with coefficients in the Gevrey class $G^s(T^n)$ w...
summary:The problems of Gevrey hypoellipticity for a class of degenerated quasi-elliptic operators a...
Let P be a linear operator with s-Gevrey coefficents defined on the torus; if P is s-globally hypoel...
We study $\omega$-regularity of the solutions of certain operators that are globally $C^\infty$-hypo...
In this note, by analyzing the behavior at infinity of the matrix symbol of an invariant operator P ...
In this paper we study global C ∞ and Gevrey solvability for a class of sublaplacian defined on the ...
In the last years many papers are concerned with the study of the global solvability and hypoellipti...
We study the hypoellipticity for the operator (1) $P=D_{t}+i\alpha(t)b(t, X, D_{x}) $ in $\mathrm{R}...
Treves, F., [15], proved the hypoellipticity of some regular operators. Later, Hörmander, L.,[11] Du...
Let P be a linear partial differential operator with coefficients in the Gevrey class $G^s$. We prov...
In this paper we consider the problem of global analytic and Gevrey hypoellipticity and solvability ...
AbstractWe prove Gevrey regularity for a class of operators defined on the torus Tm+n, with real ana...
Let P be a linear partial differential operator with coefficients in the Gevrey class Gs(Tn) where T...
Let $P$ be a linear partial differential operator with coefficients in the Gevrey class $G^s(T^n)$ w...
AbstractLet P be a linear partial differential operator with coefficients in the Gevrey class Gs(Tn)...
Let $P$ be a linear partial differential operator with coefficients in the Gevrey class $G^s(T^n)$ w...
summary:The problems of Gevrey hypoellipticity for a class of degenerated quasi-elliptic operators a...
Let P be a linear operator with s-Gevrey coefficents defined on the torus; if P is s-globally hypoel...
We study $\omega$-regularity of the solutions of certain operators that are globally $C^\infty$-hypo...
In this note, by analyzing the behavior at infinity of the matrix symbol of an invariant operator P ...
In this paper we study global C ∞ and Gevrey solvability for a class of sublaplacian defined on the ...
In the last years many papers are concerned with the study of the global solvability and hypoellipti...
We study the hypoellipticity for the operator (1) $P=D_{t}+i\alpha(t)b(t, X, D_{x}) $ in $\mathrm{R}...
Treves, F., [15], proved the hypoellipticity of some regular operators. Later, Hörmander, L.,[11] Du...
Let P be a linear partial differential operator with coefficients in the Gevrey class $G^s$. We prov...
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