A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2022; you can also visit the original URL.
The file type is
Dirac index and twisted characters
Transactions of the American Mathematical Society
Let G be a real reductive Lie group with maximal compact subgroup K. We generalize the usual notion of Dirac index to a twisted version, which is nontrivial even in cases when G and K do not have equal rank. We compute ordinary and twisted indices of standard modules. As applications, we study extensions of Harish-Chandra modules and twisted characters.doi:10.1090/tran/7318 fatcat:7hkcd3idsjh7fh5dktzynwo3zy