Results 71 to 80 of about 125 (118)
On conditionally hypoelliptic properties of partially hypoelliptic operators
Proceedings of the Japan Academy, Series A, Mathematical Sciences, 1963 openaire +2 more sources
On the Converse of Pansu's Theorem. [PDF]
Arch Ration Mech AnalDe Philippis G +4 more
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Gevrey-hypoelliptic operators which are not $C^\infty$-hypoelliptic
Kyoto Journal of Mathematics, 1988 openaire +2 more sources
On the hypoellipticity and the global analytic-hypoellipticity of pseudo-differential operators
On the hypoellipticity and the global analytic-hypoellipticity of pseudo-differential operatorsopenaire +1 more source
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Hypoellipticity and Parabolic Hypoellipticity of Nonlocal Operators under Hörmander’s Condition
Potential Analysis, 2022zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hua Zhang, Jiagang Ren, Ren Jiagang
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The Metivier inequality and ultradifferentiable hypoellipticity
Mathematische NachrichtenAbstract In 1980, Métivier characterized the analytic (and Gevrey) hypoellipticity of L2$L^2$‐solvable partial linear differential operators by a priori estimates. In this note, we extend this characterization to ultradifferentiable hypoellipticity with respect to Denjoy–Carleman classes given by suitable weight sequences. We also discuss the case when
Stefan Furdos
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On Global Hypoellipticity [PDF]
Communications in Partial Differential Equations, 2012 We consider a first order linear partial differential operator of principal type on a closed connected orientable two-dimensional manifold sending sections of one complex line bundle to sections of another. We prove that the assumption of global hypoellipticity of the operator implies a relation between the degrees of the line bundles and the Euler ...
Adalberto Bergamasco
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