• PL 68 (Pietari Kalmin katu 5)

    00014

    Finland

1997 …2025
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Publikationer 1997 2019

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A direct reconstruction method for anisotropic electrical impedance tomography

Hamilton, S., Lassas, M. & Siltanen, M. S., jul 2014, I : Inverse Problems. 30, 7, 33 s., 075007.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

All-optical majority gate based on an injection-locked laser

von Lerber, T., Lassas, M., Lyubopytov, V. S., Ylinen, L., Chipouline, A., Hofmann, K. & Küppers, F., 10 okt 2019, I : Scientific Reports. 9, 7 s., 14576.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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Analysis of regularized inversion of data corrupted by white Gaussian noise

Kekkonen, H., Lassas, M. & Siltanen, M. S., apr 2014, I : Inverse Problems. 30, 4, 18 s., 045009.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Analysis of the PML equations in general convex geometry

Lassas, M. & Somersalo, E., 2001, I : Proceedings of the Royal Society of Edinburgh. Section A, Mathematics. 131, s. 1183-1207 25 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

An inverse problem for a hyperbolic system on a vector bundle and energy measurements

Krupchyk, K. & Lassas, M., dec 2012, I : Mathematische Annalen. 354, 4, s. 1431-1464 34 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

An inverse problem for a wave equation with sources and observations on disjoint sets

Lassas, M. & Oksanen, L., 2010, I : Inverse Problems. 26, 8, s. 085012 19 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

An inverse problem for the wave equation with one measurement and the pseudorandom source

Helin, T., Lassas, M. & Oksanen, L., 2012, I : Analysis & PDE. 5, 5, s. 887-912 26 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Approximate quantum and acoustic cloaking

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2011, I : Journal of Spectral Theory . 1, 1, s. 27-80 54 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Approximate Quantum Cloaking and Almost-Trapped States

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2008, I : Physical Review Letters. 101, 22, s. 220404 4 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Bayesian Inversion Method for 3-D Dental X-ray Imaging

Kolehmainen, V., Vanne, A., Siltanen, M. S., Jarvenpaa, S., Kaipio, J., Lassas, M. & Kalke, M., 2007, I : Elektrotechnik und Informationstechnik : Zeitschrift des Österreichischen Verbandes für Elektrotechnik.. 124, s. 248-253 6 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Bayesian signal restoration and Mumford--Shah functional

Helin, T. J. & Lassas, M. J., 2007, I : Proceedings in Applied Mathematics and Mechanics. 2007, 7, s. 2080013-2080014

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Boundary regularity for the Ricci equation, geometric convergence, and Gel-fand's inverse boundary problem

Anderson, M., Katsuda, A., Kurylev, Y., Lassas, M. & Taylor, M., 2004, I : Inventiones Mathematicae. 158, 2, s. 261-321 61 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Calderon's inverse problem for anisotropic conductivity in the plane

Astala, K., Päivärinta, L. & Lassas, M., 2005, I : Communications in Partial Differential Equations. 30, 1-2, s. 207-224 18 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Calderón's Inverse Problem with an Imperfectly Known Boundary and Reconstruction Up to a Conformal Deformation

Kolehmainen, V., Lassas, M. & Ola, P., 2010, I : SIAM Journal on Mathematical Analysis. 42, 3, s. 1371-1381 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Can one use total variation prior for edge-preserving Bayesian inversion?

Lassas, M. & Siltanen, S., 2004, I : Inverse Problems. 20, 5, s. 1537-1563 27 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Cloaking a sensor via transformation optics

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2011, I : Physical review E : Statistical physics, plasmas, fluids, and related interdisciplinary topics. 83, s. 016603 6 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Complex riemannian metric and absorbing boundary conditions

Lassas, M., Liukkonen, J. & Somersalo, E., 2001, I : Journal de Mathematiques Pures et Appliquées. 80, 7, s. 739-768 30 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Conic singularities, generalized scattering matrix, and inverse scattering on asymptotically hyperbolic surfaces

Isozaki, H., Kurylev, Y. & Lassas, M., mar 2017, I : Journal für die Reine und Angewandte Mathematik. 2017, 724, s. 53-103 51 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Correlation based passive imaging with a white noise source

Helin, T., Lassas, M., Oksanen, L. & Saksala, T., aug 2018, I : Journal de Mathematiques Pures et Appliquées. 116, s. 132-160 29 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Correlation imaging in inverse scattering is tomography on probability distributions

Caro, P., Helin, T., Kujanpää, A. & Lassas, M., jan 2019, I : Inverse Problems. 35, 1, 20 s., 015010.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Curvelet-based method for orientation estimation of particles from optical images

Sampo, J., Takalo, J. J., Siltanen, M. S., Miettinen, A., Lassas, M. & Timonen, J., mar 2014, I : Optical Engineering. 53, 3, 10 s., 033109.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

D-bar method and exceptional points at positive energy: a computational study

Tamminen, J., de Hoop, M. V., Lassas, M. & Siltanen, S., 2014, I : Proceedings of the Project Review, Geo-Mathematical Imaging Group. 1, s. 389-415 27 s.

Forskningsoutput: TidskriftsbidragArtikelProfessionell

D-bar method for electrical impedance tomography with discontinuous conductivities

Knudsen, K., Lassas, M., Mueller, J. L. & Siltanen, S., 2006, I : SIAM Journal on Applied Mathematics. 67, 3, s. 893-913 21 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Determination of a Riemannian manifold from the distance difference functions

Lassas, M. & Saksala, T., apr 2019, I : Asian Journal of Mathematics. 23, 2, s. 173-199 27 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Determination of the spacetime from local time measurements

Lassas, M., Oksanen, L. & Yang, Y., jun 2016, I : Mathematische Annalen. 365, 1-2, s. 271-307 37 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Determining a first order perturbation of the biharmonic operator by partial boundary measurements

Krupchyk, K., Lassas, M. & Uhlmann, G., 2012, I : Journal of Functional Analysis. 262, 4, s. 1781-1801 21 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

DETERMINING ELECTRICAL AND HEAT TRANSFER PARAMETERS USING COUPLED BOUNDARY MEASUREMENTS

Krupchyk, K., Lassas, M. & Siltanen, S., 2011, I : SIAM Journal on Mathematical Analysis. 43, s. 2096-2115 20 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Discrete regularization and convergence of the inverse problem for 1+1 dimensional wave equation

Korpela, J., Lassas, M. & Oksanen, L., jun 2019, I : Inverse problems and imaging. 13, 3, s. 575-596 22 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Discretization-invariant Bayesian inversion and Besov space priors

Lassas, M., Saksman, E. & Siltanen, S., 2009, I : Inverse problems and imaging. 3, 1, s. 87-122 36 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Dynamic multi-source X-ray tomography using a spacetime level set method

Niemi, E., Lassas, M., Kallonen, A., Harhanen, L., Hamalainen, K. & Siltanen, S., 15 jun 2015, I : Journal of Computational Physics. 291, s. 218-237 20 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Electrical impedance tomography problem with inaccurately known boundary and contact impedances

Kolehmainen, V., Lassas, M. & Ola, P., 2008, I : IEEE Transactions on Medical Imaging. 27, 10, s. 1404-1414 11 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Electromagnetic wormholes and virtual magnetic monopoles from metamaterials

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2007, I : Physical Review Letters. 99, 18, 4 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Electromagnetic wormholes via handlebody constructions

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2008, I : Communications in Mathematical Physics. 281, 2, s. 369-385 17 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Equivalence of time-domain inverse problems and boundary spectral problems

Katchalov, A., Kurylev, Y., Lassas, M. & Mandache, N., 2004, I : Inverse Problems. 20, 2, s. 419-436 18 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Evaluation of the areal material distribution of paper from its optical transmission image

Takalo, J., Timonen, J., Sampo, J., Siltanen, S. & Lassas, M., 2011, I : European Physical Journal. Applied Physics. 55, 2, s. 20701 7 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Evaluation of the orientation distribution of fibers from reflection images of fibrous samples

Takalo, J., Timonen, J., Sampo, J., Marjanen, K., Siltanen, S. & Lassas, M., jan 2014, I : European Physical Journal. Applied Physics. 65, 1, 10 s., 10703.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

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FOCUSING WAVES IN UNKNOWN MEDIA BY MODIFIED TIME REVERSAL ITERATION

Dahl, M. F., Kirpichnikova, A. & Lassas, M., 2009, I : SIAM Journal on Control and Optimization. 48, s. 839-858 20 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Foreword: inverse problems in biology

Lassas, M. & Siltanen, S., jul 2013, I : Journal of mathematical biology. 67, 1, s. 1-1 1 s.

Forskningsoutput: TidskriftsbidragArtikelProfessionell

Forward and inverse scattering on manifolds with asymptotically cylindrical ends

Isozaki, H., Kurylev, Y. & Lassas, M., 2010, I : Journal of Functional Analysis. 258, 6, s. 2060-2118 59 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Full-wave invisibility of active devices at all frequencies

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2007, I : Communications in Mathematical Physics. 275, s. 749-789 41 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Gel'fand inverse problem for a quadratic operator pencil

Kurylev, Y. & Lassas, M., 2000, I : Journal of Functional Analysis. 176, 2, s. 247-263 17 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Hierarchical models in statistical inverse problems and the Mumford-Shah functional

Helin, T. & Lassas, M., 2011, I : Inverse Problems. 27, s. 015008 32 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Hyperbolic inverse boundary-value problem and time-continuation of the non-stationary Dirichlet-to-Neumann map

Kurylev, Y. & Lassas, M., 2002, I : Proceedings of the Royal Society of Edinburgh. Section A, Mathematics. 132, 4, s. 931-949 19 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Improvement of cylindrical cloaking with the SHS lining

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2007, I : Optics Express. 15, s. 12717-12734 18 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Improvement of cylindrical cloaking with the SHS lining

Greenleaf, A., Kurylev, Y., Lassas, M. & Uhlmann, G., 2007, I : Optics Express. 15, 20, s. 12717-12734

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Infinite Photography: New Mathematical Model for High-Resolution Images

Helin, T., Lassas, M. & Siltanen, S., 2010, I : Journal of Mathematical Imaging and Vision. 36, 2, s. 140-158 19 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Inverse acoustic scattering problem in half-space with anisotropic random impedance

Helin, T. J., Lassas, M. J. & Päivärinta, L., 2017, I : Journal of Differential Equations. 262, 4, s. 3139-3168 30 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Inverse boundary spectral problem for non-selfadjoint Maxwell's equations with incomplete data

Lassas, M., 1998, I : Communications in Partial Differential Equations. 23, 3-4, s. 629-648 20 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

Inverse Boundary Value Problems for the Perturbed Polyharmonic Operator

Krupchyk, K., Lassas, M. & Uhlmann, G., jan 2014, I : Transactions of the American Mathematical Society. 366, 1, s. 95-112 18 s., PII S 0002-9947(2013)05713-3.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

INVERSE PROBLEM FOR THE RIEMANNIAN WAVE EQUATION WITH DIRICHLET DATA AND NEUMANN DATA ON DISJOINT SETS

Lassas, M. & Oksanen, L., 15 apr 2014, I : Duke Mathematical Journal. 163, 6, s. 1071-1103 33 s.

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review