Search Results - Operator theory General theory of linear operators

Genetic Algorithms and Genetic Programming

Authors: Affenzeller, Michael Wagner, Stefan Winkler, Stephan et al.

Subject Terms: Michael Affenzeller, genetic algorithms, genetic programming, GA Theory, GP Schema theories, time series analysis, population diversity, Heuristic lab, Crossover Operators, Standard GA, Capacitated Vehicle Routing Problem, Building Block Hypothesis, Global Optimal Solution, Schema Theorem, Combinatorial Optimization Problems, GP Population, GP Test, Data Set, Island Model, GA Application, Parallel GAs, Roc Curve, Solution Candidates, VRP, Sequential GA, Melanoma Data Set, Parent Tours, M2 M1, Linear Rank Selection, Computer science, Algorithms and data structures, Information technology: general topics, Data mining

File Description: application/pdf

Relation: Numerical Insights

Access URL: https://library.oapen.org/handle/20.500.12657/101465

Spectral Geometry of Partial Differential Operators

Authors: Michael Ruzhansky Makhmud Sadybekov Durvudkhan Suragan

Resource Type: eBook.

Subjects: Partial differential operators, Spectral geometry

Categories: MATHEMATICS / General, MATHEMATICS / Arithmetic, MATHEMATICS / Differential Equations / General, MATHEMATICS / Functional Analysis

Harris's Method for Non-conservative Periodic Semiflows and Application to Some Non-local PDEs.

Authors: El Abdouni, Adil¹ (AUTHOR) adil.el-abdouni@ens.uvsq.fr

Source: Acta Applicandae Mathematicae. 11/4/2024, Vol. 194 Issue 1, p1-30. 30p.

Subject Terms: *ERGODIC theory, *LINEAR operators, *CIRCADIAN rhythms, *OPERATOR theory, *BIOLOGICAL models

Second gradient thermoelasticity with microtemperatures.

Authors: Ieşan, Dorin Quintanilla, Ramón

Source: Electronic Research Archive; 2025, Vol. 33 Issue 2, p1-19, 19p

Subject Terms: STRAINS & stresses (Mechanics), SHEAR (Mechanics), ELASTIC solids, LINEAR operators, OPERATOR theory, THERMOELASTICITY

Controllability of nonlinear stochastic impulsive switched systems in Hilbert spaces.

Authors: Ansari, Shahin Malik, Muslim

Source: Asian Journal of Control; May2025, Vol. 27 Issue 3, p1479-1491, 13p

Subject Terms: DIFFERENTIAL operators, LINEAR operators, STOCHASTIC differential equations, OPERATOR theory, STOCHASTIC orders

An unconditionally stable mimetic finite volume method on collocated grids

Authors: Santos Serrano, Daniel

Contributors: University/Department: Universitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics

Thesis Advisors: Oliva Llena, Asensio, Pérez Segarra, Carlos David

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: Symmetry-preserving, FVM, Interpolation, Energy-preserving, Projection method, Mimetic method, Àrees temàtiques de la UPC::Enginyeria mecànica, Àrees temàtiques de la UPC::Matemàtiques i estadística, 621 - Enginyeria mecànica en general. Tecnologia nuclear. Electrotècnia. Maquinària, 517 - Anàlisi

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Access URL: http://hdl.handle.net/10803/694041
https://dx.doi.org/10.5821/dissertation-2117-426655

On the spectrum of Jacobi almost-Toeplitz matrices: application to Jacobi bisymmetric matrices

Authors: Encinas Bachiller, Andrés Marcos Jiménez Jiménez, María José Mondal, Samir

Source: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Subject Terms: Classificació AMS::15 Linear and multilinear algebra, matrix theory, Algebras, Linear, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica, Operator theory, Classificació AMS::47 Operator theory::47A General theory of linear operators, Classificació AMS::47 Operator theory::47B Special classes of linear operators, Àrees temàtiques de la UPC::Matemàtiques i estadística::Àlgebra::Àlgebra lineal i multilineal, Matrices, Àlgebra multilineal, Àlgebra lineal, Multilinear algebra, Operadors lineals, Matrius (Àlgebra)

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Access URL: https://hdl.handle.net/2117/425037

Integro-differential equations : regularity theory and Pohozaev identities

Authors: Ros, Xavier

Contributors: University/Department: Universitat Politècnica de Catalunya. Departament de Matemàtica Aplicada I

Thesis Advisors: Cabré, Xavier

Source: TDX (Tesis Doctorals en Xarxa)

File Description: application/pdf

Access URL: http://hdl.handle.net/10803/279289
https://dx.doi.org/10.5821/dissertation-2117-95453

Boundary control of an axially moving hybrid system of elasticity with mass-rotary rollers.

Authors: Aouragh, My Driss Nahli, Mohamed

Source: International Journal of Control; May2024, Vol. 97 Issue 5, p1109-1117, 9p

Subject Terms: HYBRID systems, LINEAR operators, ELASTICITY, CLOSED loop systems, OPERATOR theory, COMPUTER simulation

Generalization of the determinants for trace-potent linear operators

Authors: Seymour Goldberg Israel Gohberg Naum Krupnik

Source: Integral Equations and Operator Theory. 40:441-453

Subject Terms: Linear operators belonging to operator ideals (nuclear, \(p\)-summing, in the Schatten-von Neumann classes, etc.), trace class, bounded linear operator, inversion formula, index of trace-potency, generalized determinant, General (adjoints, conjugates, products, inverses, domains, ranges, etc.), 0101 mathematics, 01 natural sciences, General theory of linear operators

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Access URL: https://zbmath.org/1652408
https://doi.org/10.1007/bf01198139
https://link.springer.com/article/10.1007/BF01198139

Reduced synthesis in harmonic analysis and compact synthesis in operator theory

Authors: Shulman, V. S. Todorov, I. G. Turowska, Lyudmila

Source: Functional Analysis and Its Applications. 51(3):240-243

Subject Terms: Mathematical sciences, Matematik, locally compact group, reduced C*-algebra of a locally compact group, Fourier algebra, compact operator, masa-bimodule, linear operator equation, spectral-synthesis, algebras, sets, multipliers, subspaces, Mathematics

Access URL: https://gup.ub.gu.se/publication/257923

Restricted Weak Type Extrapolation of Multi-Variable Operators and Related Topics

Authors: Roure Perdices, Eduard

Contributors: University/Department: Universitat de Barcelona. Departament de Matemàtiques i Informàtica

Thesis Advisors: Carro Rossell, María Jesús, Pérez Moreno, Carlos, Cascante, Ma. Carme (Maria Carme)

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: Espais de Lorentz, Espacios de Lorentz, Lorentz spaces, Ciències Experimentals i Matemàtiques

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Access URL: http://hdl.handle.net/10803/668407

The Zak Transform on Gelfand-Shilov and Modulation Spaces with Applications to Operator Theory

Authors: Toft, Joachim, 1964

Source: Complex Analysis and Operator Theory. 15(1):1-42

Subject Terms: Zak transform, Quasi-periodic, Wiener spaces, Modulation spaces, Gelfand–, Shilov spaces, Quasi-Banach spaces, Characterizations, Mathematics, Matematik

File Description: print

Access URL: https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-99969
https://doi.org/10.1007/s11785-020-01039-6

Singular integral operators and rectifiability

Authors: Chunaev, Petr

Contributors: University/Department: Universitat Autònoma de Barcelona. Departament de Matemàtiques

Thesis Advisors: Tolsa Domènech, Xavier, Mateu Bennassar, Joan

Source: TDX (Tesis Doctorals en Xarxa)

Subject Terms: Operadors integrals singulars, Operadores integrales singulares, Singular integral operator, Rectificabilitat, Rectificabilidad, Rectififiability, transformada de Cauchy, Cauchy transform, Ciències Experimentals

File Description: application/pdf

Access URL: http://hdl.handle.net/10803/663827

Some topics in the spectral theory of linear operators

Authors: Jibril, A. A. S.

Subject Terms: 510, Mathematical sciences, general

Access URL: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.258910

Fractional derivative boundary control in coupled Euler-Bernoulli beams: stability and discrete energy decay.

Authors: Boukhari, Boumediene Mtiri, Foued Bchatnia, Ahmed et al.

Source: AIMS Mathematics; 2024, Vol. 9 Issue 11, p1-22, 22p

Subject Terms: LINEAR operators, OPERATOR theory, COMPUTER simulation, EQUATIONS

An example on Lyapunov stability and linearization

Authors: Munhoz Rodrigues, Hildebrando Solà-Morales Rubió, Joan de Universitat Politècnica de Catalunya. Departament de Matemàtiques et al.

Contributors: Munhoz Rodrigues, Hildebrando Solà-Morales Rubió, Joan de Universitat Politècnica de Catalunya. Departament de Matemàtiques et al.

Source: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Subject Terms: Differential equations, 47 Operator theory::47A General theory of linear operators [Classificació AMS], Dynamical Systems (math.DS), 35 Partial differential equations::35B Qualitative properties of solutions [Classificació AMS], 01 natural sciences, Dynamical systems, 37 Dynamical systems and ergodic theory::37C Smooth dynamical systems: general theory [Classificació AMS], 0103 physical sciences, FOS: Mathematics, Differentiable dynamical systems, Mathematics - Dynamical Systems, 0101 mathematics, Operadors, Teoria dels, 37C75, 47A10, 43D20, 35B35, 43 Abstract harmonic analysis [Classificació AMS], Teoria dels, Àrees temàtiques de la UPC::Matemàtiques i estadística, Operator theory, Matemàtiques i estadística [Àrees temàtiques de la UPC], Classificació AMS::47 Operator theory::47A General theory of linear operators, Differential equations, Partial, Equacions diferencials parcials, Sistemes dinàmics diferenciables, Classificació AMS::43 Abstract harmonic analysis, Classificació AMS::37 Dynamical systems and ergodic theory::37C Smooth dynamical systems: general theory, Operadors, Classificació AMS::35 Partial differential equations::35B Qualitative properties of solutions, Linearization in infinite dimensions, Partial, Lyapunov stability of fixed points

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Access URL: http://arxiv.org/pdf/1902.02111
http://arxiv.org/abs/1902.02111
https://www.sciencedirect.com/science/article/pii/S0022039620300395
https://upcommons.upc.edu/handle/2117/183287
https://arxiv.org/pdf/1902.02111
https://ui.adsabs.harvard.edu/abs/2020JDE...269.1349R/abstract
https://www.arxiv-vanity.com/papers/1902.02111/
https://hdl.handle.net/2117/183287
https://doi.org/10.1016/j.jde.2020.01.027

C 0 –Semigroups Approach to the Reliability Model Based on Robot-Safety System.

Authors: Kasim, Ehmet Yumaier, Aihemaitijiang

Source: Axioms (2075-1680); Jul2024, Vol. 13 Issue 7, p423, 28p

Subject Terms: LINEAR operators, EXPONENTIAL stability, OPERATOR theory, ROBOTS, EQUATIONS

Invariant subspaces in the theory of operators and theory of functions

Authors: N. K. Nikol'skii

Source: Journal of Soviet Mathematics. 5:129-249

Subject Terms: Invariant subspaces of linear operators, Research exposition (monographs, survey articles) pertaining to operator theory, Abstract approximation theory (approximation in normed linear spaces and other abstract spaces), Spectral synthesis on groups, semigroups, etc, Other generalizations of analytic functions (including abstract-valued functions), Banach algebras of differentiable or analytic functions, \(H^p\)-spaces, 0101 mathematics, 01 natural sciences, General theory of linear operators

File Description: application/xml

Access URL: https://zbmath.org/3543077
https://doi.org/10.1007/bf01247397
https://link.springer.com/article/10.1007/BF01247397

The Quasiapproximate $(\mathcal{U} + \mathcal{K})$ ?Invariants of Essentially Normal Operators: The quasiapproximate \((\mathcal U + \mathcal K)\)-invariants of essentially normal operators

Authors: Jue Xian Li You Qing Ji

Source: Integral Equations and Operator Theory. 50:255-278

Subject Terms: Linear operator approximation theory, Structure theory of linear operators, Hilbert space, Cowen-Douglas operator, quasiapproximate \((\mathcal U + \mathcal K)\)-equivalence, 01 natural sciences, General theory of linear operators, essentially normal operator, Bergmann operator, unilateral weighted operator, Hermitian and normal operators (spectral measures, functional calculus, etc.), Spectrum, resolvent, 0101 mathematics, Subnormal operators, hyponormal operators, etc

File Description: application/xml

Access URL: https://zbmath.org/2138206
https://doi.org/10.1007/s00020-003-1226-z
https://zbmath.org/1789723
https://link.springer.com/article/10.1007/s00020-003-1226-z