Abstract
We give examples of reducible characteristic cycles for irreducible Harish-Chandra modules for U(p, q) by analyzing a four-dimensional singular subvariety of We relate this singularity to the Kashiwara–Saito singularity arising for Schubert varieties for with reducible characteristic cycles, as well as recent related examples of Williamson. In particular, this gives another explanation of the simple highest weight modules for with reducible associated varieties that Williamson discovered.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
