000 01496nam a2200253Ia 4500
008 160627s2013||||xx |||||||||||||| ||und||
080 _aHBNI Th55
100 _aVenkatesh, R.
_eauthor
245 _aUnique factorization of tensor products for Kac-Moody Algebras
260 _c2013
300 _a38p.
502 _a2013
502 _bPh.D
502 _cHBNI
520 3 _aIn the first part, we address a fundamental question, unique factorization of tensor products, that arises in representation theory. We consider integrable, category O modules of indecomposable symmetrizable Kac-Moody algebras. We prove that unique factorization of tensor products of irreducible modules holds in this category, upto twisting by one dimensional modules. This generalizes a fundamental theorem of Rajan for finite dimensional simple Lie algebras over C. Our proof is new even for the finite dimensional case, and uses an interplay of representation theory and combinatorics to analyze the Kac-Weyl character formula. In the second part, we get a new interpretation of the chromatic polynomials using Kac-Moody theory and derive some of its properties using this new interpretation.
650 1 4 _aMathematics
653 1 0 _aHBNI Th55
653 1 0 _aKac-Moody Algebras
653 1 0 _aTensor Products
720 1 _aViswanath, S.
_eThesis advisor [ths]
856 _uhttp://www.imsc.res.in/xmlui/handle/123456789/341
942 _2THESIS171
_cTHESIS
999 _c48876
_d48876