Results 51 to 60 of about 152 (97)

On the generation of Beurling type Carleman ultradifferentiable $C_0$-semigroups by scalar type spectral operators

open access: yes, 2016
A characterization of the scalar type spectral generators of Beurling type Carleman ultradifferentiable $C_0$-semigroups is established, the important case of the Gevrey ultradifferentiability is considered in detail, the implementation of the general criterion corresponding to a certain rapidly growing defining sequence is observed.
openaire   +2 more sources

On the Gevrey ultradifferentiability of weak solutions of an abstract evolution equation with a scalar type spectral operator

open access: yes, 2017
Found are conditions on a scalar type spectral operator $A$ in a complex Banach space necessary and sufficient for all weak solutions of the evolution equation \begin{equation*} y'(t)=Ay(t),\ t\ge 0, \end{equation*} to be strongly Gevrey ultradifferentiable of order $ \ge 1$, in particular analytic or entire, on $[0,\infty)$.
openaire   +2 more sources

On Tempered Ultradistributions in Classical Sobolev Spaces

open access: yes
We study the inclusion of tempered ultradistributions (or functions of slow growth) in the notion of classical Sobolev spaces. We investigate basically the properties of tempered ultradistribution spaces in Sobolev spaces.
Amaonyeiro, A. U., Egwe, M. E.
core  

A class of globally analytic hypoelliptic operators on compact Lie groups

open access: yes
We obtain global analytic hypoellipticity for a class of differential operators that can be expressed as a zero-order perturbation of a sum of squares of vector fields with real-analytic coefficients on compact Lie groups.
Jahnke, Max Reinhold   +1 more
core  

Stability properties of ultraholomorphic classes of Roumieu-type defined by weight matrices. [PDF]

open access: yesRev R Acad Cienc Exactas Fis Nat A Mat
Jiménez-Garrido J   +3 more
europepmc   +1 more source

Surjectivity of partial differential operators in classes of ultradifferentiable functions of Roumieu type

open access: yes, 1990
The author proves that the surjectivity of a partial differential operator \(P(D)\) in the space \({\mathcal E}_{\{M_ \alpha\}}(\Omega)\) of ultradifferentiable functions is equivalent to the same property in the space \({\mathcal D}_{(M_ \alpha)}(\Omega)\) of Beurling ultradistributions, and can be characterized in terms of the \(P\)- convexity of the
openaire   +2 more sources

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