Results 21 to 30 of about 2,611 (149)

On the analyticity and Gevrey class regularity up to the boundary for the Euler Equations [PDF]

open access: yes, 2010
We consider the Euler equations in a three-dimensional Gevrey-class bounded domain. Using Lagrangian coordinates we obtain the Gevrey-class persistence of the solution, up to the boundary, with an explicit estimate on the rate of decay of the Gevrey ...
Baouendi M S Goulaouic C   +18 more
core   +1 more source

Exponentially long time stability near an equilibrium point for non--linearizable analytic vector fields [PDF]

open access: yes, 2004
We study the orbit behavior of a germ of an analytic vector field of $(C^n,0)$, $n \geq 2$. We prove that if its linear part is semisimple, non--resonant and verifies a Bruno--like condition, then the origin is effectively stable: stable for finite but ...
Carletti, Timoteo
core   +4 more sources

Paradifferential calculus in Gevrey classes

open access: yesKyoto Journal of Mathematics, 2001
The paper presents a paradifferential calculus adapted to the study of nonlinear partial differential equations in Gevrey classes. Namely, in the second section of the paper the authors consider Gevrey-Sobolev spaces \(H^s_{\lambda,\sigma}\) defined by the norms \[ \biggl \|\exp \bigl(\lambda |D|^{1/ \sigma}\bigr)u \biggr\|_{H^s(\mathbb{R}^n)}.
CHEN H., RODINO, Luigi Giacomo
openaire   +3 more sources

Inhomogeneous Gevrey classes and ultradistributions

open access: yesJournal of Mathematical Analysis and Applications, 2004
Starting from the definition of inhomogeneous Gevrey classes given by \textit{O. Liess} and \textit{L. Rodino} [Boll. Unione Mat. Ital., VI. Ser., C, Anal. Funz. Appl. 3, 233--323 (1984; Zbl 0557.35131)], the authors introduce the non-quasi-analytic inhomogeneous Gevrey classes of Roumieu type, denoted by \(G^{s, \lambda}.\) Such a class of ...
D. Calvo   +2 more
openaire   +4 more sources

The Growth of Hypoelliptic Polynomials and Gevrey Classes [PDF]

open access: yesProceedings of the American Mathematical Society, 1973
For given hypoelliptic polynomials P P and Q Q , classes Γ P ρ ( Ω ) \Gamma _P^\rho (\Omega ) and Γ Q ρ ( Ω ) \Gamma _Q^\rho (\Omega ) involving Gevrey type ...
Newberger, E., Zielezny, Z.
openaire   +1 more source

An Introduction to Extended Gevrey Regularity

open access: yesAxioms
Gevrey classes are the most common choice when considering the regularities of smooth functions that are not analytic. However, in various situations, it is important to consider smoothness properties that go beyond Gevrey regularity, for example, when ...
Nenad Teofanov   +2 more
doaj   +1 more source

Gelfand–Shilov Spaces for Extended Gevrey Regularity

open access: yesAxioms
We consider spaces of smooth functions obtained by relaxing Gevrey-type regularity and decay conditions. It is shown that these classes can be introduced by using the general framework of the weighted matrices approach to ultradifferentiable functions ...
Nenad Teofanov   +2 more
doaj   +1 more source

Characteristic cycles and Gevrey series solutions of $A$-hypergeometric systems [PDF]

open access: yes, 2019
We compute the $L$-characteristic cycle of an $A$-hypergeometric system and higher Euler-Koszul homology modules of the toric ring. We also prove upper semicontinuity results about the multiplicities in these cycles and apply our results to analyze the ...
Berkesch, Christine   +1 more
core   +2 more sources

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