c-functions and Macdonald polynomials

This is a paper about c-functions and Macdonald polynomials. There are c-function formulas for E-expansions of P-lambda and A(lambda+rho), principal specializations of P-lambda and E-mu, for Macdonald's constant term formulas, and for the norms of Macdonald polynomials. Most of these follow from the creation formulas for Macdonald polynomials, providing alternative proofs to several results from [19]. In addition, we prove the Boson-Fermion correspondence in the Macdonald polynomial setting and the Weyl character formula for Macdonald polynomials. (c) 2024 Elsevier Inc. All rights reserved.