Results 61 to 70 of about 154 (95)

On Gevrey regularity of globally C∞ hypoelliptic operators

open access: yes, 2004
We prove Gevrey regularity for a class of operators defined on the torus Tm+n, with real analytic coefficients in Tm, and which are globally C∞ hypoelliptic.
Himonas, A. Alexandrou   +1 more
core   +1 more source

Gevrey Hypoellipticity for Non-subelliptic Operators

open access: yes, 2010
In J. J. Kohn’s recent paper [5] the operator ∂ ∂ − iz|z|2(m−1) ∂z ∂t was introduced and shown to be hypoelliptic, yet to lose k−1 derivatives in m L2 Sobolev norms.
BOVE, ANTONIO, D. S. Tartakoff
core  

A new class of pseudo-differential operators. [PDF]

open access: yesProc Natl Acad Sci U S A, 1978
Nagel A, Stein EM.
europepmc   +1 more source

On the Singularities of Non-Analytic Szegö Kernels

open access: yes, 1999
The \,\, {\it CR} \,\, manifold \,\, $ M_m=\,\, \{(z_1,z_2) \, \in \, {\mathbb C}^2 ; \,\, \Im z_2 = [\Re z_1]^{2m} \} (m=2,3,\ldots)$ is a counterexample, which was given by Christ and Geller, to analytic hypoellipticity of $\bar{\partial}_{b}$ and real
Kamimoto Joe
core  

Remarks on Analytic Hypoellipticity and Local Solvability in the Space of Hyperfunctions

open access: yes, 2003
Let p(x,D) be a pseudodifferential operator on Rn with a ( formal) analytic symbol p(x, ξ), and let x0 ∈ Rn. In this paper we prove that the transposed operator tp(x,D) of p(x,D) is locally solvable at x0 modulo analytic functions in the space of ...
Wakabayashi Seiichiro
core  

Deterministic, stochastic, and mean-field PDE models in neuroscience. [PDF]

open access: yesFront Comput Neurosci
Çetin C   +5 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy