Linear series with cusps and $n$-fold points
نویسندگان
چکیده
منابع مشابه
Notes: Elliptic Points and Cusps
which we call the fundamental domain. By previous results, this set also (essentially) represents equivalence classes of complex elliptic curves under isomorphism (τ ∈ D ↔ C/Λτ ). Lemma 1.1. The map π : D → Y (1) is a surjection, where π is the obvious projection π(τ) = SL2(Z)τ . Proof. This lemma states that D generates all of H under the action of SL2(Z); that is, it suffices to show that eve...
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ژورنال
عنوان ژورنال: Transactions of the American Mathematical Society
سال: 1987
ISSN: 0002-9947
DOI: 10.1090/s0002-9947-1987-0911090-x