منابع مشابه
An Invariant of Simple Algebraic Groups
The Rost invariant associated with a simple simply connected algebraic group G is used to define an invariant of strongly inner forms of G. This invariant takes values in a quotient of H(k, Q/Z(2)). It is used to answer a question of Serre about groups of type E6 and to prove a generalization of Gille’s splitting criterion for groups of type E6 and E7. For G a semisimple (affine) algebraic grou...
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Youning Li, 2, ∗ Muxin Han, 4 Dong Ruan, 2 and Bei Zeng 6, 7 Department of Physics, Tsinghua University, Beijing, People’s Republic of China Collaborative Innovation Center of Quantum Matter, Beijing 100190, People’s Republic of China Department of Physics, Florida Atlantic University, FL 33431, USA Institut für Quantengravitation, Universität Erlangen-Nürnberg, Staudtstr. 7/B2, 91058 Erlangen,...
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We describe a correspondence between GLn-invariant tensors and graphs. We then show how this correspondence accommodates various types of symmetries and orientations.
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Let U be the quantised enveloping algebra associated to a Cartan matrix of finite type. Let W be the tensor product of a finite list of highest weight representations of U . Then EndU (W ) has a basis called the dual canonical basis and this gives an integral form for EndU (W ). We show that this integral form is cellular by using results due to Lusztig.
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We describe a correspondence between GLn-invariant tensors and graphs. We then show how this correspondence accommodates various types of symmetries and orientations.
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1998
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(97)00609-3