Kirillov Polynomials for the Exceptional Lie Algebra $$\mathfrak g_{2}$$

Abstract

AbstractAs part of the development of the orbit method, Kirillov has counted the number of strictly upper triangular matrices with coefficients in a finite field of q elements and fixed Jordan type. One obtains polynomials with respect to q with many interesting properties and close relation to type A representation theory. In the present work, we develop the corresponding theory for the exceptional Lie algebra $$\mathfrak g_2$$ g 2 . In particular, we show that the leading coefficient can be expressed in terms of the Springer correspondence.