Seminar on Inverse Problems

The seminar meets usually on Tuesdays at 10-12 in some room. All interested are welcome to attend!

Below is a list of past and upcoming talks. Speakers are from University of Oulu unless otherwise stated.

Spring 2017

16.5.2017
Jukka Kemppainen: The Li-Yau gradient estimate for the heat equation

7.2.2017 MA342
Teemu Tyni: On equivalence of scattering problem and Lippmann-Schwinger equation for biharmonic operator

Autumn 2016

8.11.2016 MA341
Markus Harju: Inverse backscattering for magnetic Schrödinger equation: a numerical study

27.9.2016, 11.10.2016 and 18.10.2016 MA342
Valery Serov: Coming back to magnetic Schrödinger equation

13.9.2016 and 20.9.2016 MA342
Teemu Tyni: Inverse scattering problem for quasi-linear perturbation of the bi-harmonic operator on the line

6.9.2016 MA342
Planning seminar

Spring 2016

19.4.2016 M342
Teemu Tyni: On computation of the first nonlinear term in inverse backscattering Born series

15.3.2016 and 22.3.2016 M342
Urpo Kyllönen: Green's function of elliptic differential operators with singular coefficients

1.3.2016 and 8.3.2016 M342
Teemu Tyni: Scattering for fourth order operator in 3D

16.2.2016 and 23.2.2016 M342
Urpo Kyllönen: Remarks on elliptic differential operators with singular coefficients

2.2.2016 and 9.2.2016 M342
Teemu Tyni: Scattering for fourth order operator in 3D

26.1.2016 M336
Mikko Sillanpää: Bayesian LASSO and an efficient genome-wide multilocus gene-gene interaction search

Summer 2015

Finnish Centre of Excellence in Inverse Problems Research and Exactus Doctoral Programme Invited Lectures: 9.-12.6.2015
David Colton (University of Delaware, USA): Inverse Scattering Theory and Transmission Eigenvalues
Lecture Announcement Slides: Part 1 Part 2 Part 3 Part 4

Spring 2015

21.4.2015 M234
Teemu Tyni: Inverse scattering problem for operator of order four on the line

31.3.2015 and 14.4.2015 M234
Lassi Roininen: Stable prior distributions for Bayesian inversion with an application in X-ray tomography

24.3.2015 and 7.4.2015 M234
Mikko Orispää: Mathematical sampling of signals

17.3.2015 M234
Darima Mylzenova (MGU-Lomonosov):  Intriguing properties on neural networks

17.2.2015 and 24.2.2015 M234
Teemu Tyni: Direct scattering problem for operator of order four on the line

27.1.2015 M234
A planning seminar

Autumn 2014

25.11.2014 and 2.12.2014 M234
Georgios Fotopoulos: A numerical solution for the inverse fixed energy scattering problem in 2D

4.11.2014 and 11.11.2014 M234
Jukka Kemppainen: Decay estimates for diffusion and subdiffusion equations

30.9.2014, 7.10.2014, 14.10.2014, 21.10.2014 M234
Valery Serov: Boundary spectral problems for operator of order 4

16.9.2014 M234
Planning meeting of the autumn semester

Spring 2014

6.5.2014
Hanna Kiili: Electromagnetic wave propagation in nonlinear film

25.3.2014, 1.4.2014 and 8.4.2014
Georgios Fotopoulos: Inverse fixed energy scattering problem for nonlinear Schrödinger operator in 2D

18.3.2014 M234 and 25.3.2014
Markus Harju: On the numerical computation of the inverse Born approximation in 2D

28.1.2014 M234 at 1200-1300, 4.2.2014 M234 10-12
Valery Serov: On the millennium problem of Navier-Stokes equation by M. Otelbaev

Autumn 2013

26.11.2013 and 3.12.2013 M234
Elena Kozlovskaya: Seismic studies at SGO: from seismic tomography to seismic interferometry

19.11.2013 M234
Valery Serov: On Borg-Levinson theorem

5.11.2013 M234
Sari Lasanen: How to use total variation priors in statistical inverse problems

29.10.2013 M203
Mikko Orispää: Ethiopia trip report (about inverse problems in Africa)

15.10.2013 and 22.10.2013 M203
Georgios Fotopoulos: Direct fixed energy scattering problem for the generalized nonlinear Schrödinger equation in 2D

8.10.2013 M203
Johannes Norberg (Finnish Meteorological Institute): Bayesian statistical inversion and correlation priors in ionospheric tomography

1.10.2013 M203
Georgios Fotopoulos: Direct fixed energy scattering problem for the generalized nonlinear Schrödinger equation in 2D

24.9.2013 M203
Opening meeting of the autumn term

Finnish Centre of Excellence in Inverse Problems Research Invited Lectures: 3.-6.9.2013
Armen Sergeev (Steklov Mathematical Institute, Moscow, Russia): Harmonic Spheres and Yang-Mills Fields

Spring 2013

14.5.2013 M203
Hanna Kiili: TM-waves guided by a nonlinear film II

7.5.2013 M203
Markus Harju and Georgios Fotopoulos: Numerics of 1D scattering with a general nonlinearity

9.4.2013 PR126A and 16.4.2013 TF105
Hanna Kiili: TM-waves guided by a nonlinear film

12.3.2013 and 19.3.2013 TA101
Urpo Kyllönen: Friedrichs extension for elliptic differential operator with singular coefficients

19.2.2013 TA101, 26.2.2013 SÄ114, 5.3.2013 TA101
Jan Sandhu: Some remarks on inverse backscattering for magnetic Schrödinger equation in 3D

5.2.2013 PR126A, 12.2.2013 TA101
Sari Lasanen: Posterior convergence for correlation priors

29.1.2013 PR126A
Mikko Orispää: Using Kalman filters to construct quiet day curve

22.1.2013 PR126A
Opening meeting of the spring term

Autumn 2012

28.11.2012: Joint talk of dept. colloquium and inverse problems seminar:
Aleksey Nenarokomov (Moscow Aviation Institute, Russia): Applications of Inverse Problems technique for Aerospace Engineering (Review of all activities in Inverse Problems in Moscow Aviation Institute)

27.11.2012
Lassi Roininen: Correlation priors on torus.

13.11.2012 and 20.11.2012
Markus Harju: A solution method for TE waves with numerical examples.

6.11.2012
Valery Serov: Interior transmission eigenvalue problem. Some examples.

23.10.2012 and 30.10.2012
Urpo Kyllönen: Some remarks about elliptic differential operators

9.10.2012
Evgeny Laksthanov (University of Aveiro, Portugal): Interior transmission eigenvalue problem

25.9.2012 and 2.10.2012
Valery Serov: TE and TM-waves in nonlinear layered waveguide dielectric structures

Spring 2012

17.4.2012 and 24.4.2012
Hanna Kiili: Electromagnetic scattering by a dissipative chiral obstacle

20.3.2012, 27.3.2012 and 3.4.2012
Jan Sandhu: Backscattering for the magnetic Schrödinger operator

13.3.2012
Jukka Kemppainen: A time-fractional interpolation of the heat equation and the wave equation

21.2.2012, 28.2.2012 and 6.3.2012
Valery Serov: On Kato's theorem for magnetic Schrödinger equation

7.2.2012 and 14.2.2012
Sari Lasanen: Discretization of prior models in statistical inverse problems

31.1.2012
Opening meeting of the spring term

Autumn 2011

15.11.2011, 22.11.2011 and 29.11.2011
Georgios Fotopoulos: Some inverse scattering problems for nonlinear two-dimensional Schrödinger operator

1.11.2011 and 8.11.2011
Sari Lasanen: Generalization of the Cameron-Martin formula with applications to inverse scattering problems

11.10.2011, 18.10.2011 and 25.10.2011
Valery Serov: Transmission eigenvalues for degenerate and singular cases. II.

13.9.2011, 20.9.2011 and 27.9.2011
Lassi Roininen: Realisation of Perfect Codes by Stable ARMA-algorithms: Mathematical theory and engineering practice

Spring 2011

(in room KTK127)

19.4.2011 and 3.5.2011
Markus Harju: On the factorization method for weakly nonlinear wave scattering

22.3.2011, 29.3.2011, 5.4.2011 and 12.4.2011
Jan Sandhu: Estimates for the Green's function for the magnetic Schrödinger operator in unbounded domain

22.2.2011, 8.3.2011 and 15.3.2011
Sari Lasanen: Sampling in Bayesian radar measurement techniques

25.1.2011, 1.2.2011 and 8.2.2011
Valeriy Serov: Transmission eigenvalues for degenerate case

Autumn 2010

7.9.2010, 14.9.2010, 21.9.2010 and 28.9.2010 (11-12am)
Valeriy Serov: Inverse fixed energy problem for two-dimensional Schrödinger equation of saturation type

Summer 2010

Infotech Oulu and Finnish Centre of Excellence in Inverse Problems Research Invited Lectures: 16.-18.6.2010
David Colton (University of Delaware, USA): Inverse Scattering Theory in the Frequency Domain
Lecture Announcement

Finnish Centre of Excellence in Inverse Problems Research Invited Lectures: 2.-3.6.2010
El Maati Ouhabaz (Université Bordeaux 1, France): Introduction to diffusion equations with singular coefficients
Lecture Announcement

Spring 2010

13.4.2010, 20.4.2010 and 27.4.2010
Sari Lasanen: Ultraflat polynomials and radar codes

16.3.2010 and 23.3.2010
Mikko Orispää: Introduction to linear Kalman filters

9.3.2010
Mikko Salo (University of Helsinki): Fixed energy inverse scattering in two dimensions

16.2.2010, 23.2.2010 and 2.3.2010
Hanna Kiili: Electromagnetic scattering by a chiral obstacle

26.1.2010, 2.2.2010 and 9.2.2010
Jan Sandhu: The domains of magnetic Schrödinger operator in bounded domains

Older talks

Last updated: 5.4.2017