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  • 1990-1994  (3)
  • Berger, Thomas  (2)
  • Berger, Melvyn S.  (1)
  • Licensed  (3)
  • 1
    Online Resource
    Online Resource
    Wiesbaden : Vieweg+Teubner Verlag
    UID:
    b3kat_BV042452255
    Format: 1 Online-Ressource (XI, 212 S.)
    ISBN: 9783663140450 , 9783528064143
    Series Statement: Aspects of Mathematics E 20
    Note: During the winter term 1987/88 I gave a course at the University of Bonn under the title "Manifolds and Modular Forms". Iwanted to develop the theory of "Elliptic Genera" and to leam it myself on this occasion. This theory due to Ochanine, Landweber, Stong and others was relatively new at the time. The word "genus" is meant in the sense of my book "Neue Topologische Methoden in der Algebraischen Geometrie" published in 1956: A genus is a homomorphism of the Thom cobordism ring of oriented compact manifolds into the complex numbers. Fundamental examples are the signature and the A-genus. The A-genus equals the arithmetic genus of an algebraic manifold, provided the first Chem class of the manifold vanishes. According to Atiyah and Singer it is the index of the Dirac operator on a compact Riemannian manifold with spin structure. The elliptic genera depend on a parameter. For special values of the parameter one obtains the signature and the A-genus. Indeed, the universal elliptic genus can be regarded as a modular form with respect to the subgroup r (2) of the modular group; the two cusps o giving the signature and the A-genus. Witten and other physicists have given motivations for the elliptic genus by theoretical physics using the free loop space of a manifold
    Language: German
    Keywords: Mannigfaltigkeit ; Modulform ; Elliptisches Geschlecht ; Komplexe Mannigfaltigkeit ; Modulform
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Online Resource
    Online Resource
    Wiesbaden : Vieweg+Teubner Verlag
    UID:
    b3kat_BV042423558
    Format: 1 Online-Ressource (XI, 212 p)
    Edition: Second Edition
    ISBN: 9783663107262 , 9783528164140
    Series Statement: Aspects of Mathematics 20
    Note: During the winter term 1987/88 I gave a course at the University of Bonn under the title "Manifolds and Modular Forms". I wanted to develop the theory of "Elliptic Genera" and to learn it myself on this occasion. This theory due to Ochanine, Landweber, Stong and others was relatively new at the time. The word "genus" is meant in the sense of my book "Neue Topologische Methoden in der Algebraischen Geometrie" published in 1956: A genus is a homomorphism of the Thorn cobordism ring of oriented compact manifolds into the complex numbers. Fundamental examples are the signature and the A-genus. The A-genus equals the arithmetic genus of an algebraic manifold, provided the first Chern class of the manifold vanishes. According to Atiyah and Singer it is the index of the Dirac operator on a compact Riemannian manifold with spin structure. The elliptic genera depend on a parameter. For special values of the parameter one obtains the signature and the A-genus. Indeed, the universal elliptic genus can be regarded as a modular form with respect to the subgroup r (2) of the modular group; the two cusps 0 giving the signature and the A-genus. Witten and other physicists have given motivations for the elliptic genus by theoretical physics using the free loop space of a manifold
    Language: English
    Keywords: Mannigfaltigkeit ; Modulform ; Elliptisches Geschlecht ; Komplexe Mannigfaltigkeit ; Modulform
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Online Resource
    Online Resource
    Dordrecht : Springer Netherlands
    UID:
    b3kat_BV042423640
    Format: 1 Online-Ressource (430p)
    ISBN: 9789400905795 , 9789401067485
    Series Statement: Nonlinear Topics in the Mathematical Sciences, An International Book Series dealing with Past, Current and Future Advances and Developments in the Mathematics of Nonlinear Science 1
    Note: This is the first volume of a series of books that will describe current advances and past accompli shments of mathemat i ca 1 aspects of nonlinear sCience taken in the broadest contexts. This subject has been studied for hundreds of years, yet it is the topic in whi ch a number of outstandi ng di scoveri es have been made in the past two decades. Clearly, this trend will continue. In fact, we believe some of the great scientific problems in this area will be clarified and perhaps resolved. One of the reasons for this development is the emerging new mathematical ideas of nonlinear science. It is clear that by looking at the mathematical structures themselves that underlie experiment and observation that new vistas of conceptual thinking lie at the foundation of the unexplored area in this field. To speak of specific examples, one notes that the whole area of bifurcation was rarely talked about in the early parts of this century, even though it was discussed mathematically by Poi ncare at the end of the ni neteenth century. I n another di rect ion, turbulence has been a key observation in fluid dynamics, yet it was only recently, in the past decade, that simple computer studies brought to light simple dynamical models in which chaotic dynamics, hopefully closely related to turbulence, can be observed
    Language: English
    Keywords: Nichtlineares System ; Nichtlineares mathematisches Modell ; Nichtlineares System ; Mathematik ; Nichtlineare Analysis ; Mathematische Methode ; Nichtlineare Theorie
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