# Events current week

### Colloquium

No colloquium this week

###
Monday February 17, 2020 - Sunday February 23, 2020

Results
(9)

#### Monday February 17, 2020

11:00 AM - 12:00 PM

- Intersection cohomology of the moduli space of Higgs bundles on a genus 2 curve
- Camilla Felisetti (Université de Genève)
- Vivatsgasse 7, Hörsaal MPI
- MPI extra talk

03:00 PM - 04:00 PM

- Additive power operations in equivariant cohomology, I
- Nathaniel Stapleton (University of Kentucky, MPIM, Bonn)
- Vivatsgasse 7, Hörsaal MPI
- MPI Topology Seminar

04:30 PM - 05:30 PM

- Additive power operations in equivariant cohomology, II
- Nathaniel Stapleton (University of Kentucky/MPIM, Bonn)
- Vivatsgasse 7, Hörsaal MPI
- MPI Topology Seminar

#### Tuesday February 18, 2020

10:15 AM - 12:00 PM

- Flat cycles in the homology of locally symmetric spaces covered by SL(n,R)/SO(n)
- Grigori Avramidi (MPIM, Bonn)
- Vivatsgasse 7, Hörsaal MPI
- Seminar "Arithmetic of Algebraic Groups"

02:00 PM - 03:00 PM

- Construction of stable rank 2 sheaves on projective space
- Alexander Tikhomirov (HSE, Moscow/MPIM, Bonn)
- Vivatsgasse 7, Hörsaal MPI
- Seminar on Algebra, Geometry and Physics

03:00 PM - 04:00 PM

- Rank 2 local systems and abelian varieties
- Raju Krishnamoorthy (University of Georgia)
- Vivatsgasse 7, Hörsaal MPI
- MPI extra talk

#### Wednesday February 19, 2020

02:30 PM - 03:30 PM

- Summing $\mu(n)$: a faster elementary algorithm
- Lauren (Lola) Thompson (Oberlin College/MPIM, Bonn)
- Vivatsgasse 7, Hörsaal MPI
- Number theory lunch seminar

04:30 PM - 05:30 PM

- The Erdös discrepancy problem over the squarefree and cubefree integers
- Marco Aymone (Federal University from Minas Gerais, Brazil)
- Vivatsgasse 7, Hörsaal MPI
- Number theory lunch seminar

#### Thursday February 20, 2020

10:30 AM - 11:30 AM

- Random walk on the torus by linear and affine transformations
- Elon Lindenstrauss (The Hebrew University of Jerusalem)
- Poppelsdorfer Allee 45, Vortragssaal HIM
- Trimester Seminar Series