Auflistung nach Schlagwort "algebra"

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  • Asymptotic scattering and duality in the one-dimensional three-state quantum Potts model on a lattice 
    Rapp, Akos; Schmitteckert, Peter; Takacs, Gabor; Zarand, Gergely (Bristol : IOP Publishing Ltd., 2013-01-28)
    We determine numerically the single-particle and the two-particle spectrum of the three-state quantum Potts model on a lattice by using the density matrix renormalization group method, and extract information on the ...
  • Degenerations of Prym varieties 
    Alexeev, V.; Birkenhake, C.; Hulek, Klaus (Berlin : Walter de Gruyter, 2002)
    Let (C, l) be a stable curve with an involution. Following a classical construction one can define its Prym variety P, which in this case turns out to be a semiabelian group variety and usually not complete. In this paper ...
  • A K-theoretic proof of Boutet de Monvel's index theorem for boundary value problems 
    Melo, Severino T.; Schick, Thomas; Schrohe, Elmar (Berlin : Walter de Gruyter, 2006-12-07)
    We study the C*-closure U of the algebra of all operators of order and class zero in Boutet de Monvel's calculus on a compact connected manifold X with boundary partial derivative X not equal phi. We find short exact ...
  • MAT-free reflection arrangements 
    Cuntz, Michael; Mücksch, Paul ([Madralin] : EMIS ELibEMS, 2020)
    We introduce the class of MAT-free hyperplane arrangements which is based on the Multiple Addition Theorem by Abe, Barakat, Cuntz, Hoge, and Terao. We also investigate the closely related class of MAT2-free arrangements ...
  • The modularity of the Barth-Nieto quintic and its relatives 
    Hulek, Klaus; Spandaw, J.; van Geemen, B.; van Straten, D. (Berlin : Walter de Gruyter, 2001-08)
    The moduli space of (1, 3)-polarized abelian surfaces with full level-2 structure is birational to a double cover of the Barth Nieto quintic. Barth and Nieto have shown that these varieties have Calabi-Yau models Z and Y, ...
  • Seminormal forms and Gram determinants for cellular algebras 
    Mathas, Andrew; Soriano, Marcos (Berlin : Walter de Gruyter, 2008-06)
    This paper develops an abstract framework for constructing ‘‘seminormal forms’’ for cellular algebras. That is, given a cellular R-algebra A which is equipped with a family of JM-elements we give a general technique for ...
  • Tail expansions for random record distributions 
    Grübel, Rudolf; Von Öhsen, Niklas (Cambridge : Cambridge University Press, 2001)
    The random record distribution ν associated with a probability distribution μ can be written as a convolution series, ν = Σn=1∞(n + 1)-1μ(Black star)n. Various authors have obtained results on the behaviour of the tails ...
  • Towards the weighted Bounded Negativity Conjecture for blow-ups of algebraic surfaces 
    Laface, Roberto; Pokora, Piotr (Heidelberg : Springer Verlag, 2019)
    In the present paper we focus on a weighted version of the Bounded Negativity Conjecture, which predicts that for every smooth projective surface in characteristic zero the self-intersection numbers of reduced and irreducible ...