Universiteit Faculteit FNWI English version | 1 maart 2005, e-mail |

## Woensdag 16 maart 2005
Vanaf half 11 is er koffie en chocola in de Weylkamer (N2046).
## AbstractAn elliptic curveE is the solution set of an equation
y,
for some constants ^{2}=x^{3}+Ax+BA,B, together with a point O `at infinity'.
This point O is needed to obtain a compact curve.
If one chooses A and B in some number field one can study
the arithmetic of the elliptic curve. This theory is quite far developed.
Our talk will focus on elliptic surfaces, i.e., one dimensional families
of elliptic curves. In our talk this means that the above mentioned
In this talk we introduce several important arithmetic invariants of elliptic surfaces and we discuss how one can calculate them. |