Wintersemester 2014/2015




9. Oktober

Stephen Coughlan

Elliptic Gorenstein 3-fold singularities and canonical threefolds

16. Oktober

Johannes Rauh

Algebraic Statistics and Conditional Independence

20. Oktober (13:00-14:00, a410)

Gavin Brown

Calabi-Yau 3-folds via Tom and Jerry

23. Oktober

Víctor González Alonso

Effective computation of multiplier ideals on rational surface singularities

30. Oktober

Tomasz Szemberg (Krakau, Polen)

Bounded negativity and arrangements of lines

31. Oktober (11:00-12:00, g117)

Sönke Rollenske (Bielefeld)

Stable surfaces: examples, results and open questions

6. November

Nathan Broomhead

Partially ample line bundles on toric varieties

13. November

Elena Martinengo

 Mori dream stacks

17. Novemer

Miguel Marco

Numerical conditions of Max Noether's theorem

20. November (16:00-17:00)

Sławek Rams

On Enriques surfaces with four cusps

27. November

Alexey Basalaev

Mirror symmetry for simple elliptic singularity with a group action

3. Dezember         (16-17, a410)

Martin Bright (Leiden)

The Brauer-Manin obstruction and reduction mod p

4. Dezember

Olivia Dumitrescu

Elementary (-1) cycles in P^n

9. Dezember

Henning Krause


11. Dezember

Christian Lehn

Rational curves on singular cubic fourfolds

16. Dezember (10-11, f428)

Alessandra Sarti

Pell's equation and automorphisms of Hilb^2(K3)

18. Dezember (15-16, f442)

Milena Hering

Projective normality of tropical curves

18. Dezember (17-18, f442)

Arend Bayer (Edinburgh)

The space of stability conditions on abelian threefolds (and on some Calabi-Yau threefolds)

8. Januar

Tong Zhang (Alberta)

Relative Noether inequality and geography of irregular varieties

12. Januar       (16-17, a410)

Norbert Hoffmann (Mary Immaculate College, Limerick)

Essential Dimension of Vector Bundles

15. Januar

André Kappes (Frankfurt)

Kontsevich's formula for the sum of Lyapunov exponents

22. Januar

Marcello Bernardara (Toulouse)

Homological projective duality for determinantal varieties

29. Januar        (a410)

Frederik Tietz

Homological stability for Hurwitz spaces of S_3-covers

5. Februar (10-12, f309)

Roberto Laface

Fields of definition of singular K3 surfaces and classification of their Q-models

18. Februar (10-11, g117)

Alexander Molnar (Queen's University)

Arithmetic and intermediate Jacobians of some rigid Calabi-Yau threefolds

19. Februar (15-16:30, g117)

Matthias Zach

Computation of Vanishing Cycles via blowup of Syzygies

5. März (11:15-12:15, g117)

Toshiyuki Katsura (Tokyo)

Configurations of smooth rational curves on superspecial K3 surfaces in small characteristics

11. März (14:30-15:30, b305) Janos Kollar (IAS)

The dual complex of Calabi--Yau pairs

12. März (11:15-12:15, f309) Andreas Hochenegger

Maps between Mori Dream spaces

17. März (11:15-12:15, f309) Ronan Terpereau (Mainz) Moduli spaces of (G,h)-constellations
23. März (15:15-16:45, g117) Thomas Peternell (Bayreuth)

The nef cone of a Calabi-Yau threefold