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23 votes
2 answers
1k views

Theta functions on an elliptic curve and Serre duality

Given an elliptic curve $E$ (over $\mathbb{C}$) and line bundle $L$, one can identify $H^0(E,L)$ with a particular space of theta functions. Serre duality gives a perfect pairing between $H^0(E,L)$ ...
A Nonny Mouse's user avatar
13 votes
1 answer
682 views

How can one "see" the Hopf fibration in the space of lattices in the plane?

This question is inspired from Etienne Ghys's talk on Knots and Dynamics from ICM 2006. The map $L \mapsto (G_4(L), G_6(L))$ gives a bijection between all lattices $L\subset \mathbb{C}$ (including ...
Bruce Bartlett's user avatar
3 votes
1 answer
304 views

Relationship between volume and area

Let $\mu(z) dV_n$ be a measure in $\mathbb{C} ^n$. Let $B_n(r) := \{z \mid \|z\| < r\}$ be the ball of radius $r$ in $\mathbb C^n$, and $\partial B_n(r) $ be the corresponding sphere. In $\mathbb{C}...
Marouani's user avatar
2 votes
0 answers
179 views

Questions about transformation or integral transformation

I have asked several mathematicians about the following questions,but all of them think they are good questions,but can not give a complete answer.Now I have to come here to ask mathematicians all ...
XL _At_Here_There's user avatar