Photo of Matti Lassas
  • PL 68 (Pietari Kalmin katu 5)

    00014

    Finland

1997 …2025
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Publications 1997 2019

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Conference contribution
2018

Fitting a Putative Manifold to Noisy Data

Fefferman, C., Ivanov, S., Kurylev, Y., Lassas, M. & Narayanan, H., 2018, Proceedings of COLT 2018 (Conference On Learning Theory). Bubeck, S., Perchet, V. & Rigollet, P. (eds.). Vol. 75. p. 688-720 32 p. (Proceedings of Machine Learning Research; vol. 75).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Inverse problems for linear and non-linear hyperbolic equations

Lassas, M. J., 2018, Proceedings of International Congress of Mathematicians ICM 2018. Sirakov, B. & Ney de Souza, P. (eds.). World Scientific, Vol. III.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

2017

Amplitude Noise Suppression and Orthogonal Multiplexing Using Injection-Locked Single-Mode VCSEL

Lyubopytov, V. S., von Lerber, T., Lassas, M., Malekizandi, M., Chipouline, A. & Kueppers, F., 2017, OPTICAL FIBER COMMUNICATIONS CONFERENCE 2017. OSA Publishing, Vol. 2017. 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Injection-Locked Single-Mode VCSEL for Orthogonal Multiplexing and Amplitude Noise Suppression

Chipouline, A., Lyubopytov, V. S., Malekizandi, M., von Lerber, T., Lassas, M. & Küppers, F., 2017, 2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC). IEEE, 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Shearlet-based regularization in sparse dynamic tomography

Bubba, T. A., März, M., Purisha, Z., Lassas, M. & Siltanen, S., 24 Aug 2017, Wavelets and Sparsity XVII. Lu, Y. M., Van De Ville, D. & Papadakis, M. (eds.). Washington: SPIE - INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 10 p. UNSP 103940Y. (Proceedings of SPIE; vol. 10394).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2014

Towards a "fingerprint" of paper network: separating forgeries from genuine by the properties of fibre structure

Takalo, J., Timonen, J., Sampo, J., Rantala, M., Siltanen, S. & Lassas, M., 2014, OPTICS AND PHOTONICS FOR COUNTERTERRORISM, CRIME FIGHTING, AND DEFENCE X: AND OPTICAL MATERIALS AND BIOMATERIALS IN SECURITY AND DEFENCE SYSTEMS TECHNOLOGY XI . Burgess, D., Owen, G., Rana, H., Zamboni, R., Kajzar, F. & Szep, AA. (eds.). Bellingham, WA: Washington SPIE , 10 p. 92530A. (Proceedings of SPIE; no. 9253).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2013

Dynamic X-ray tomography with multiple sources

Niemi, E., Lassas, M. & Siltanen, S., 2013, Proceedings of ISPA 2013: 8th International Symposium on Image and Signal Processing and Analysis, September 4-6, 2013, Trieste, Italy. Ramponi, G., Lončarić, S., Carini, A. & Egiazarian, K. (eds.). Zagreb : Trieste: University of Zagreb, Croatia, University of Trieste, Italy, p. 618-621 4 p. (International Symposium on Image and Signal Processing and Analysis).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2012

Transformation Optics Based Cloaked Sensors

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2012, Proceedings of Metamaterials'2012: The 6th International Congress on Advanced Electromagnetic Materials in Microwaves and Optics. Tretyakov, S. (ed.). p. 240-242 3 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2011

The inverse problem for the wave equation and two acquisition geometries

Lassas, M. & Oksanen, L., 2011, Proceedings of Workshop on Inverse Problems, Data and Mathematical Statistics and Ecology. Kozlov, V., Ohlson, M. & von Rosen, D. (eds.). Linköping: Linkoping University, p. 43-50 8 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2008

Inverse problems, invisibility, and artificial wormholes

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2008, Proceedings of AIP 2007 First International Congress of IPIA. IOP Publishing, p. Article number 012005 23 p. (Journal of Physics: Conference Series; vol. 124).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Reconstructions of Piecewise Constant Conductivities by the D-bar Method for Electrical Impedance Tomography

Knudsen, K., Lassas, M., Mueller, J. & Siltanen, S., 2008, Proceedings of AIP 2007 First International Congress of IPIA. Cheng, J., Iso, Y., Nakamura, G. & Yamamoto, M. (eds.). p. Article number 012029 10 p. (Journal of Physics: Conference Series; vol. 124).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2007

Baysian signal restoration and Mumford-Shah functional

Helin, T. & Lassas, M., 2007, Sixth International Congress on Industrial Applied Mathematics (ICIAM07) and GAMM Annual Meeting, Zürich 2007. (Proceedings in Applied Mathematics and Mechanics; no. 7).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Calderon's inverse problem with an imperfectly known boundary in two and three dimensions

Kolehmainen, V., Lassas, M. & Ola, P., 2007, Proceedings of Inverse Problems in Applied Sciences, Hokkaido 2006. (Journal of Physics: Conference Series; no. 73).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Inverse Scattering for Waveguides

Isozaki, H., Kurylev, Y. & Lassas, M., 2007, Seminaire de Theorie Spectrale et Geometrie. Vol. 25. p. 71-83 13 p. (Actes du séminaire Théorie spectrale et géométrie; vol. 25).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2006

Electrical impedance tomography problem with inaccurately known boundary and contact impedances

Kolehmainen, V., Lassas, M. & Ola, P., 2006, 2006 3rd IEEE International Symposium on Biomedical Imaging. p. 1124-1127 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Electrical Impedance Tomography problem with inaccurately known boundary and contact impedances

Kolehmainen, V., Lassas, M. & Ola, P., 2006, Unknown host publication. p. 1124-1127 4 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2005

A dynamical inverse problem for Dirac equation

Kurylev, Y. & Lassas, M., 2005, Unknown host publication. p. 35-44 10 p. (Seminar Notes of Mathematical Sciences; no. 8).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2004

Focusing waves in electromagnetic inverse problems

Kurylev, Y., Lassas, M. & Somersalo, E., 2004, Inverse problems and spectral theory. Isozaki, H. (ed.). Providence, Rhode Island, Vol. 348. p. 11-22 12 p. (Contemporary Mathematics; vol. 348).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Gaussian beams and inverse boundary spectral problems

Katchalov, A. & Lassas, M., 2004, New Analytic and Geometric Methods in Inverse Problems: Lectures given at the EMS Summer School and Conference held in Edinburgh, Scotland 2000. Bingham, K., Somersalo, E. & Kurylev, Y. V. (eds.). Springer-Verlag, p. 127-163 37 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Inverse problem for a random potential

Lassas, M., Päivärinta, L. & Saksman, E., 2004, Partial differential equations and inverse problems: Pan-American Advanced Studies Institute on Partial Differential Equations, Nonlinear Analysis and Inverse Problems, January 6-18, 2003, Santiago, Chile. Conca, C., Manasevich, R., Uhlmann, G. & Vogelius, M. S. (eds.). Providence, Rhode Island: American Mathematical Society, p. 277-288 12 p. (Contemporary Mathematics; vol. 362).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Stability and reconstruction in Gelfand inverse boundary spectral problem

Katsuda, A., Kurylev, Y. & Lassas, M., 2004, New Analytic and Geometric Methods in Inverse Problems: Lectures given at the EMS Summer School and Conference held in Edinburgh, Scotland 2000. Bingham, K., Kurylev, Y. V. & Somersalo, E. (eds.). Springer-Verlag, p. 309-322 14 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2003

Reconstruction of a manifold from electromagnetic boundary measurements

Kurylev, Y. V., Lassas, M. & Somersalo, E., 2003, Inverse problems: theory and applications: INdAM Workshop on Inverse Problems and Applications, June 3-9, 2002, Cortona, Italy : Special Session at AMS-UMI First Joint International Meeting on Inverse Boundary Problems and Applications, June 12-16, 2002, Pisa, Italy. Alessandrini, G. & Uhlmann, G. (eds.). American Mathematical Society, Vol. 333. p. 147-161 15 p. (Contemporary Mathematics; vol. 333).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2002

Optimal acoustic measurements

Cheney, M., Isaacson, D. & Lassas, M., 2002, Unknown host publication. Smith, PD. & Cloude (eds.). p. 599-603 5 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

2000

Hyperbolic inverse problem with data on a part of the boundary

Kurylev, Y. V. & Lassas, M., 2000, Differential Equations and Mathematical Physics: Proceedings of an International Conference held at the University of Alabama in Birmingham, March 16-20, 1999. Weikard, R. & Weinstein, G. (eds.). Providence, Rhode Island: American Mathematical Society, p. 259-272 14 p. (AMS,IP studies in advanced mathematics; vol. 16).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific