Showing items with similar title or keywords.

• Kinemaattinen inversio-ongelma pallosymmetrisellä monistolla 

  Mönkkönen, Keijo (2017)

  Tutkielman pääaiheena on maanjäristysaaltoihin ja Maan sisärakenteen tutkimiseen liittyvä käänteinen kinemaattinen ongelma. Maapalloa mallinnetaan kolmiulotteisella kompaktilla reunallisella monistolla \(\bar{B}^3(0, R)\), ...

• Regularisaatio vahvojen gravitaatiolinssien inversiossa 

  Eskelinen, Matti Aleksanteri (2015)

  Massiivisten galaksien gravitaatio aiheuttaa vääristymän teleskoopilla havaittavaan kuvaan muuttamalla galaksin takaa saapuvan valon reittiä. Niin kutsu- tuissa vahvoissa gravitaatiolinsseissä voi linssinä toimiva galaksi ...

• On some partial data Calderón type problems with mixed boundary conditions 

  Covi, Giovanni; Rüland, Angkana (Elsevier, 2021)

  In this article we consider the simultaneous recovery of bulk and boundary potentials in (degenerate) elliptic equations modelling (degenerate) conducting media with inaccessible boundaries. This connects local and nonlocal ...

• Optimality of Increasing Stability for an Inverse Boundary Value Problem 

  Kow, Pu-Zhao; Uhlmann, Gunther; Wang, Jenn-Nan (Society for Industrial & Applied Mathematics (SIAM), 2021)

  In this work we study the optimality of increasing stability of the inverse boundary value problem (IBVP) for the Schrödinger equation. The rigorous justification of increasing stability for the IBVP for the Schrödinger ...

• The fixed angle scattering problem and wave equation inverse problems with two measurements 

  Rakesh, R.; Salo, Mikko (Institute of Physics, 2020)

  We consider two formally determined inverse problems for the wave equation in more than one space dimension. Motivated by the fixed angle inverse scattering problem, we show that a compactly supported potential is uniquely ...