### Department of Mathematics and Systems Analysis

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Seminar on analysis and geometry

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

Organizers:

Organizers:

Harmonic analysis and PDE seminar

As of January 2016, we launched a joint seminar of the Harmonic Analysis group at the University of Helsinki, and the Nonlinear PDE group at the Aalto University.

Starting from fall 2017, we have a new schedule. The seminar is held once in 3 weeks but with two one-hour talks. The time is the same as before **Fridays at 14-16.** The place alternates between the University of Helsinki Kumpula Campus (Exactum room **C124**) and the Aalto University Otaniemi Campus (Main Building room **M3**).

Everyone interested is welcome!

Organizers:

Organizers:

See the webpage of the seminar. The talks are listed in the end of this page as well.

**14.11. 12:15 Karl Brustad (NTNU, Trondheim): The dominative p-Laplacian and sublinear elliptic operators – M3 (M234)**- 21.11. 12:15 Aleksis Koski (University of Jyväskylä): Sobolev homeomorphic extensions – M3 (M234)
In the mathematical theory of nonlinear elasticity one typically represents elastic bodies as domains in Euclidean space, and the main object of study are deformations (mappings) between two such bodies. The class of acceptable deformations one considers usually consists of Sobolev homeomorphisms between the respective domains, for example, with some given boundary values. It is hence a fundamental question in this theory to ask whether a given boundary map admits a homeomorphic extension in the Sobolev class or not. We share some recent developments on this subject, including sharp existence results and counterexamples.

- 28.11. 12:15 Carlos Mudarra (Complutense University of Madrid): Smooth and nonsmooth Whitney's extension theorems for convex functions – M3 (M234)
- 5.12. 12:15 Michele Miranda (University of Ferrara): TBA – M3 (M234)

Page content by: webmaster-math [at] list [dot] aalto [dot] fi