Sökning: "Lie group"

Visar resultat 21 - 25 av 82 avhandlingar innehållade orden Lie group.

  1. 21. Group theoretical methods for solving multidimensional nonlinear partial differential equations

    Författare :Marianna Euler; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mathematics; Matematik;

    Sammanfattning : New methods for constructing both exact and approximate solutions of multidimensional nonlinear partial differential equations are developed. The basis of the methods is taken from the classical Lie transformation group theory. LÄS MER

  3. 22. Some applications of representation theory in homogeneous dynamics and automorphic functions

    Författare :Samuel Charles Edwards; Andreas Strömbergsson; Henrik Schlichtkrull; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; automorphic functions; effective equidistribution; Eisenstein series; homogeneous dynamics; horospheres; lattices; Lie groups; representation theory; Mathematics; Matematik;

    Sammanfattning : This thesis consists of an introduction and five papers in the general area of dynamics and functions on homogeneous spaces. A common feature is that representation theory plays a key role in all articles. LÄS MER

  4. 23. Geometry and Critical Configurations of Multiple Views

    Författare :Fredrik Kahl; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; algebra; algebraic geometry; field theory; Number Theory; Matematik; Mathematics; reconstruction; image sequence; absolute conic; critical motions; critical surfaces; perspective projection; affine geometry; Euclidean geometry; multiple view geometry; projective geometry; group theory; Talteori; fältteori; algebraisk geometri; gruppteori; Mathematical logic; set theory; combinatories; Matematisk logik; mängdlära; kombinatorik;

    Sammanfattning : This thesis is concerned with one of the core problems in computer vision, namely to reconstruct a real world scene from several images of it. The interplay between the geometry of the scene, the cameras and the images is analyzed. LÄS MER

  5. 24. What's in a name? : A study of sobriquets in the Pesharim

    Författare :Håkan Bengtsson; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Religion; Dead Sea Scrolls; Qumran; sobriquets; code-names; nicknames; pesharim; the Yahad; 1QpHab; 4QpNah. 4QpPsa; 4QpIsaa-e; 1QpMic; 4QpHosb; CD; 1QHa; king of the South; king of the North; Pompey; Babylon; the synagogue of Satan; the woman Jezebel; the Wicked Priest; the Man of the Lie; the Spreader of the Lie; the Seekers of Smooth Things; Ephraim; Manasseh; the House of Peleg; the House of Absalom; the traitors; the Teacher of Righteousness; the Doers of the Torah; the Kittim; the Angry Lion; Religionsvetenskap Teologi; Religion Theology; Religionsvetenskap Teologi; Religionshistoria; History of Religions;

    Sammanfattning : The present study addresses the problem of a simplistic historical interpretation of the sobriquetsin the pesharim. An alternative approach is advocated taking its beginning in perceiving themessage in the pesharim as primarily an ideological vindication of the Qumran community, theYahad. LÄS MER

  7. 25. The Whittaker model of the center of the quantum group and Hecke algebras

    Författare :Alexei Sevostianov; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Teoretisk fysik; Physics; Fysik; Theoretical Physics; teoretisk fysik;

    Sammanfattning : In 1978 Kostant suggested the Whittaker model of the center of the universal enveloping algebra U(g) of a complex simple Lie algebra g. An essential role in this construction is played by a non-singular character χ of the maximal nilpotent subalgebra n+ ⊂ g. LÄS MER