Department of Mathematics and Systems Analysis

Current

Lectures, seminars and dissertations

* Dates within the next 7 days are marked by a star.

Prof. Daniele Boffi (Università di Pavia, Aalto University)
Finite element approximation of resonant modes for the Maxwell cavity problem
* Tuesday 26 September 2017,   15:00,   M1 (M232)
The resonant modes of time harmonic Maxwell equations can be identified with the eigensolutions of a problem represented by a variational formulation in mixed form. In this talk we review the finite element approximation of eigenvalue problems arising from partial differential equations. In particular, it will be shown that the analysis of mixed problems differs significantly from that of standard Galerkin formulations. We will show how these results can be applied to the a priori analysis of Maxwell's eigenvalue problem and we will give some indications on how the a posteriori analysis can be performed
Colloquim

Esko Heinonen (University of Helsinki)
Existence and non-existence results for minimal graphic and p-harmonic functions
* Wednesday 27 September 2017,   12:15,   M3 (M234)
In the Euclidean space, by the celebrated result due to Bombieri, De Giorgi, and Miranda, all positive entire solutions of the minimal graph equation are constant. It turns out that on Riemannian manifolds similar results can be obtained for solutions with at most linear growth if the manifold has only one end and asymptotically non-negative sectional curvature. In this talk I will discuss about recent results concerning the existence and non-existence of entire minimal graphic and p-harmonic functions. Talk is based on joint work with Jean-Baptiste Casteras and Ilkka Holopainen.
Seminar on analysis and geometry

Thomas Singer (Aalto)
Existence of variational solutions in non-cylindrical domains
* Friday 29 September 2017,   14:15,   Kumpula Exactum C124
Harmonic analysis and PDE seminar

Timo Hänninen (HY)
Two-weight Lp-Lq bounds for positive dyadic operators in the case 0
* Friday 29 September 2017,   15:15,   Kumpula Exactum C124
Harmonic analysis and PDE seminar

Juha Videman (Instituto Superior Técnico (IST), Lissabon)
TBA
Wednesday 04 October 2017,   12:15,   M3 (M234)
Seminar on analysis and geometry

Mateus Sousa (IMPA, Rio de Janeiro)
Existence for Fourier restriction on hyperboloids
Thursday 05 October 2017,   14:15,   M3 (M234)
In this talk we present some results about existence, as well as non existence, of extremizers for the adjoint Fourier restriction estimate on hyperboloids. We will discuss the Lorentz symmetries of the problem and the concentration-compactness arguments involved in the proofs, as well as connections to the Klein-Gordon equation.

Kristian Moring (Diplomityöesitelmä)
TBA
Thursday 05 October 2017,   15:15,   M3 (M234)

Galia Dafni (Concordia University)
TBA
Wednesday 11 October 2017,   12:15,   M3 (M234)
Seminar on analysis and geometry

Stavros Evdoridis
TBA
Wednesday 18 October 2017,   12:15,   M3 (M234)
Seminar on analysis and geometry

Dmitry A. Trotsenko (Sobolev Institute of Mathematics)
TBA
Wednesday 25 October 2017,   12:15,   M3 (M234)
Seminar on analysis and geometry

Giancarlo Pastor (Aalto University)
TBA
Monday 30 October 2017,   15:15,   M237
Further information
Aalto Stochastics & Statistics Seminar

Prof. Lothar Nannen (TU Wien)
Numerical methods for resonance problems in open systems
Tuesday 31 October 2017,   15:00,   U1
Colloquim

Alessandro Mancuso
TBA
Tuesday 14 November 2017,   11:15,   M205
Doctoral student talk / Engström

Edoardo Tosoni
TBA
Tuesday 14 November 2017,   11:40,   M205
Doctoral student talk / Engström

Vilma Virasjoki
TBA
Tuesday 14 November 2017,   12:15,   M205
Doctoral student talk / Engström

Prof. Kari Astala (Helsinki University, Aalto University)
TBA
Tuesday 28 November 2017,   15:00,   U1
Colloquim

Matias Heikkilä
TBA
Tuesday 12 December 2017,   11:15,   M205
Doctoral student talk / Engström

Joona Karjalainen
TBA
Tuesday 12 December 2017,   11:40,   M205
Doctoral student talk / Engström

Alex Karrila
TBA
Tuesday 12 December 2017,   12:15,   M205
Doctoral student talk / Engström

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