Abstract
AbstractWe give generators and relations for the graded rings of Hermitian modular forms of degree two over the rings of integers in $${\mathbb {Q}}(\sqrt{-7})$$
Q
(
-
7
)
and $${\mathbb {Q}}(\sqrt{-11})$$
Q
(
-
11
)
. In both cases we prove that the subrings of symmetric modular forms are generated by Maass lifts. The computation uses a reduction process against Borcherds products which also leads to a dimension formula for the spaces of modular forms.
Publisher
Springer Science and Business Media LLC
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