An exceptional Siegel–Weil formula and poles of the Spin L-function of
We show a Siegel–Weil formula in the setting of exceptional theta correspondence. Using this, together with a new Rankin–Selberg integral for the Spin L-function of $$\text{PGSp}_{6}$$ discovered by Pollack, we prove that a cuspidal representation of $$\text{PGSp}_{6}$$ is a (weak) functorial lift from the exceptional group $$G_{2}$$ if its (partial) Spin L-function has a pole at $s=1$ .
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- Award ID(s):
- 1901745
- PAR ID:
- 10232628
- Date Published:
- Journal Name:
- Compositio Mathematica
- Volume:
- 156
- Issue:
- 6
- ISSN:
- 0010-437X
- Page Range / eLocation ID:
- 1231 to 1261
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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