# Analysis and PDE seminars at Aalto

## Harmonic analysis and PDE seminar

The seminar is held on **Fridays at 14-16**, and the place alternates between the University of Helsinki Kumpula Campus (Exactum room **C123**) and the Aalto University Otaniemi Campus (Main Building room **M3**).

In January and February 2017, we we will have a break in the joint seminar, but the seminar will continue at the same time (Friday 14-16) at Aalto. Later in the spring, we will think about a new concept for the joint seminar. We might have a joint seminar approximately every second week with two shorter talks.

Everyone interested is welcome!

Organizers of the seminar:

## Analysis and geometry seminar

Analysis and geometry seminar is held usually on **Wednesdays at 12-14 **in** M3**.

Organizers of the seminar:

## Talks

- 31.3. 14:15 Matias Vestberg: Up to Your Neck in Shallow Water – M3 (M234)
We take a plunge into the world of shallow water dynamics as described by the diffusive wave approximation. This nonlinear parabolic PDE is studied using De Giorgi and Moser type iteration techniques to obtain local boundedness of weak solutions. We also present fundamental solutions in the flat case and make some remarks regarding the existence of solutions.

- 12.4. 12:15 Ville Tengvall (University of Jyväskylä): A Sobolev homeomorphism that cannot be approximated by diffeomorphisms in $W^{1,p}$ – M3 (M234)
Joint work with Daniel Campbell and Stanislav Hencl

- 19.4. 12:15 Prof. Samuli Siltanen (University of Helsinki): Electrical impedance tomography imaging via the Radon transform – M3 (M234)
- 21.4. 14:15 Casimir Lindfors: TBA – M3 (M234)
- 28.4. 14:15 Pekka Lehtelä: TBA – M3 (M234)
- 12.5. 14:15 Christopher Hopper: TBA – M3 (M234)

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