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PSEUDODIFFERENTIAL OPERATORS

Introduction to Partial Differential Equations, 2020
3 Fourier Transformation 10 3.1 Definition and Basic Properties . . . . . . . . . . . . . . . . . . . . . 10 3.2 Rapidly decreasing functions – S(R) . . . . . . . . . . . . . . . . . . 12 3.3 Ex-course: Fréchet spaces . . . . . . . . . . . . . . . . . . .
H. Abels
semanticscholar   +1 more source

Operators Approximable by Hypercyclic Operators [PDF]

Mathematical Proceedings of the Royal Irish Academy, 2015
We show that operators on a separable infinite dimensional Banach space $X$ of the form $I +S$, where $S$ is an operator with dense generalised kernel, must lie in the norm closure of the hypercyclic operators on $X$, in fact in the closure of the mixing operators.
openaire   +4 more sources

Information System for the Goods Transport Service Network

Promet (Zagreb), 2008
Intermodal transport can reduce the load of the road infrastructure.Knowledge gives it the necessary competitiveness andhelps to control its costs. Fast reaction to changing conditions,opportunities and requirements gives remarkable advantage.Setting up ...
Caj Holm, Lars Kallstorm, Mario Šafran
doaj   +1 more source

Operators Commuting with Positive Operators [PDF]

Proceedings of the American Mathematical Society, 1979
Necessary and sufficient conditions are obtained for an operator to commute with a positive operator.
openaire   +2 more sources

Powers of the operator u(z)d/dz and their connection with some combinatorial numbers [PDF]

Notes on Number Theory and Discrete Mathematics
In this paper the operator A = u(z)d/dz is considered, where u is an entire or meromorphic function in the complex plane. The expansion of Aᵏ (k≥1) with the help of the powers of the differential operator D=d/dz is obtained, and it is shown that this ...
Ioana Petkova
doaj   +1 more source

Da, pour and to clauses in gradually teleonomic verb constructions. A comparative approach to Serbian, French and English [PDF]

Južnoslovenski Filolog, 2017
This paper examines how the Serbian “da” subordinate clause, the French preposition pour and the English particle to, mainly used in clauses expressing purpose, can become linguistic forms expressing temporal and oppositional values.
Ašić Tijana V., Bardiere Yves M., Grujić Tatjana S., Torterat Frederic J.   +3 more
doaj   +1 more source

Operators quasisimilar to a normal operator [PDF]

Proceedings of the American Mathematical Society, 1975
A necessary and sufficient condition for an operator to be quasisimilar to a normal operator is given.
openaire   +2 more sources

To operate or not to operate

GMS Current Posters in Otorhinolaryngology - Head and Neck Surgery, 2011
82.
openaire   +3 more sources

Singular integral operators, a brief historical overview of its evolution

Selecciones Matemáticas, 2022
In this work we give an analytical-historical view of the classical theory of singular integrals introduced by A.P. Calderón-A. Zygmund. Emphasis is given to their applications to PDEs and to some projections of the theory.
Alejandro Ortiz Fernández
doaj   +1 more source

Quantization of pseudo-differential operators on the torus [PDF]

, 2008
Pseudo-differential and Fourier series operators on the n-torus are analyzed by using global representations by Fourier series instead of local representations in coordinate charts.
Ruzhansky, Michael, Turunen, Ville
core   +3 more sources