ترغب بنشر مسار تعليمي؟ اضغط هنا

Weyl Group Multiple Dirichlet Series for Symmetrizable Kac-Moody Root Systems

150   0   0.0 ( 0 )
 نشر من قبل Yichao Zhang
 تاريخ النشر 2012
  مجال البحث
والبحث باللغة English




اسأل ChatGPT حول البحث

Weyl group multiple Dirichlet series, introduced by Brubaker, Bump, Chinta, Friedberg and Hoffstein, are expected to be Whittaker coefficients of Eisenstein series on metaplectic groups. Chinta and Gunnells constructed these multiple Dirichlet series for all the finite root systems using the method of averaging a Weyl group action on the field of rational functions. In this paper, we generalize Chinta and Gunnells work and construct Weyl group multiple Dirichlet series for the root systems associated with symmetrizable Kac-Moody algebras, and establish their functional equations and meromorphic continuation.

قيم البحث

اقرأ أيضاً

189 - Ian Whitehead 2021
We study Apollonian circle packings in relation to a certain rank 4 indefinite Kac-Moody root system $Phi$. We introduce the generating function $Z(mathbf{s})$ of a packing, an exponential series in four variables with an Apollonian symmetry group, w hich relates to Weyl-Kac characters of $Phi$. By exploiting the presence of affine and Lorentzian hyperbolic root subsystems of $Phi$, with automorphic Weyl denominators, we express $Z(mathbf{s})$ in terms of Jacobi theta functions and the Siegel modular form $Delta_5$. We also show that the domain of convergence of $Z(mathbf{s})$ is the Tits cone of $Phi$, and discover that this domain inherits the intricate geometric structure of Apollonian packings.
We use the theory of Clifford algebras and Vahlen groups to study Weyl groups of hyperbolic Kac-Moody algebras T_n^{++}, obtained by a process of double extension from a Cartan matrix of finite type T_n, whose corresponding generalized Cartan matrices are symmetric.
In this note, we provide a complete description of the closed sets of real roots in a Kac-Moody root system.
83 - Alex J. Feingold 2002
This is an expository introduction to fusion rules for affine Kac-Moody algebras, with major focus on the algorithmic aspects of their computation and the relationship with tensor product decompositions. Many explicit examples are included with figur es illustrating the rank 2 cases. New results relating fusion coefficients to tensor product coefficients are proved, and a conjecture is given which shows that the Frenkel-Zhu affine fusion rule theorem can be seen as a beautiful generalization of the Parasarathy-Ranga Rao-Varadarajan tensor product theorem. Previous work of the author and collaborators on a different approach to fusion rules from elementary group theory is also explained.
83 - Jakob Palmkvist 2008
We present a construction which associates an infinite sequence of Kac-Moody algebras, labeled by a positive integer n, to one single Jordan algebra. For n=1, this reduces to the well known Kantor-Koecher-Tits construction. Our generalization utilize s a new relation between different generalized Jordan triple systems, together with their known connections to Jordan and Lie algebras. Applied to the Jordan algebra of hermitian 3x3 matrices over the division algebras R, C, H, O, the construction gives the exceptional Lie algebras f4, e6, e7, e8 for n=2. Moreover, we obtain their infinite-dimensional extensions for n greater or equal to 3. In the case of 2x2 matrices the resulting Lie algebras are of the form so(p+n,q+n) and the concomitant nonlinear realization generalizes the conformal transformations in a spacetime of signature (p,q).
التعليقات
جاري جلب التعليقات جاري جلب التعليقات
سجل دخول لتتمكن من متابعة معايير البحث التي قمت باختيارها
mircosoft-partner

هل ترغب بارسال اشعارات عن اخر التحديثات في شمرا-اكاديميا