A halfintegral weight multiplier system on SU(2,1)
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If you have a question about this talk, please contact Tom Fisher.
It’s been known for some time that there exist modular forms of
halfintegral weight on the group SU(2,1). However no example of such a form
has ever been written down. There seem to be no easy constructions such as
theta series. If one had a halfintegral weight multiplier system, then one
could generate these modular forms by Eisenstein series. The aim of the talk
is to describe a halfintegral weight multiplier system on this group.
This talk is part of the Number Theory Seminar series.
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