activity
19962015
most citedAn Explicit Construction of Casimir Operators and Eigenvalues : I

5 citations · 14 across the 17 of their papers we have counts for

collaborators

17 papers

math.RT2015

Explicit Calculations of Tensor Product Coefficients for E_7

Meltem Gungormez, Hasan R. Karadayi

We propose a new method to calculate coupling coefficients of E_7 tensor products. Our method is based on explicit use of E_7 characters in the definition of a tensor product. When…

math-ph2013

A note on a theorem of Bourbaki

Hasan R. Karadayi

We have recently show that Poincare series of Hyperbolic Lie algebras have the form of a ratio between Poincare series of a chosen finite Lie algebra and a polynomial of finite deg…

math-ph2012

A Brief Note On The Definition of Signature

Hasan R. Karadayi, Meltem Gungormez

It is known that signature of a Weyl group element is defined in terms of the number of its simple Weyl reflections. Actual calculations hence are not always possible especially fo…

math-ph2010

Permutation Weights and Modular Poincare Polynomials for Affine Lie Algebras

M. Gungormez, H. R. Karadayi

Poincare Polynomial of a Kac-Moody Lie algebra can be obtained by classifying the Weyl orbit of its Weyl vector . A remarkable fact for Affine Lie algebras is that the nu…

math-ph2010★ 1 cited

Permutation Weights for A_r^(1) Lie Algebras

M. Gungormez, H. R. Karadayi

When it is based on Kac-Peterson form of Affine Weyl Groups, Weyl-Kac character formula could be formulated in terms of Theta functions and a sum over finite Weyl groups. We, inste…

math-ph2008

On Characters of F_4 Lie Algebra

M. Gungormez, H. R. Karadayi

In a previous work, we have given an explicit method to obtain irreducible characters of finite Lie algebras without referring to Weyl character formula. Irreducible characters of…