Search for dissertations about: "operator functions"

Showing result 1 - 5 of 118 swedish dissertations containing the words operator functions.

  1. 1. Non-selfadjoint operator functions

    University dissertation from Umeå : Umeå universitet

    Author : Axel Torshage; Christian Engström; Marco Marletta; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Non-linear spectral problem; numerical range; pseudospectrum; resolvent estimate; equivalence after extension; block operator matrices; operator functions; operator pencil; spectral divisor; joint numerical range; Mathematics; matematik;

    Abstract : Spectral properties of linear operators and operator functions can be used to analyze models in nature. When dispersion and damping are taken into account, the dependence of the spectral parameter is in general non-linear and the operators are not selfadjoint. READ MORE

  2. 2. Impartial Games and Recursive Functions

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Urban Larsson; Göteborgs universitet.; Gothenburg University.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Algorithmically undecidable; Beatty sequences; Blocking maneuver; Cellular automaton; Comply maneuver; Complementary sequences; Dictionary process; Dual game; Game complexity; Game convergence; Game reflexivity; Heap game; Impartial game; Invariant subtraction game; Move-size dynamic; Nim; P-equivalence; Rule 110; Splitting sequences; *-operator; Subtraction game; Take-away game; Turing complete; Wythoff Nim; Turing complete; Heap game; Splitting sequences; Rule 110; Game complexity; Dual game; Invariant subtraction game; Cellular automaton; P-equivalence; Impartial game; Beatty sequences; Take-away game; Blocking maneuver; Comply maneuver; Complementary sequences; Nim; Game reflexivity; Move-size dynamic; Dictionary process; *-operator; Wythoff Nim; Game convergence; Subtraction game;

    Abstract : Interest in 2-player impartial games often concerns the famous theory of Sprague-Grundy. In this thesis we study other aspects, bridging some gaps between combinatorial number theory, computer science and combinatorial games. READ MORE

  3. 3. Some Möbius Invariant Spaces of Analytic Functions. Spectrum of the Cesàro Operator

    University dissertation from Mathematics Centre for Mathematical Sciences Lund University Lund

    Author : Anna-Maria Persson; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik; subdecomposable; Cesàro operator; atomic decompositions; Hankel operators; duality; integral estimates; Möbius invariant spaces of analytic functions; growth estimates;

    Abstract : This thesis consists of three papers in which different topics in spaces of analytic functions are considered. These papers are: I. "Estimates in Möbius Invariant Spaces of Analytic Functions." II. READ MORE

  4. 4. Quantifying Operability of Working Machines

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Reno Filla; Jan-Ove Palmberg; Kjell Ohlsson; Jonas Larsson; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Operability; machine harmony; operator workload; control effort; simulation; operator model; human operator; working machines; construction equipment; wheel loaders; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : In working machines the human operator is essential for the performance of the total system. Productivity and energy efficiency are both dependent not only on inherent machine properties and working place conditions, but also on how the operator manoeuvres the machine. READ MORE

  5. 5. Boundary values of plurisubharmonic functions and related topics

    University dissertation from Umeå : Umeå University, Department of Mathematics

    Author : Berit Kemppe; Urban Cegrell; Anders Fällström; Alexander Raskovskii; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plurisubharmonic functions; boundary measures; boundary values; complex Monge-Ampère operator; weak*-convergence; MATHEMATICS Algebra; geometry and mathematical analysis Mathematical analysis; MATEMATIK Algebra; geometri och analys Analys; Mathematics; matematik;

    Abstract : This thesis consists of three papers concerning problems related to plurisubharmonic functions on bounded hyperconvex domains, in particular boundary values of such functions. The papers summarized in this thesis are:* Paper I Urban Cegrell and Berit Kemppe, Monge-Ampère boundary measures, Ann. Polon. Math. READ MORE