- 2019
- ‘Inverse problems in anisotropic elasticity and seismology’, Yau Mathematical Sciences Center, Tsinghua University, Beijing, China, June 2019.
- 2018
- ‘Advances in computational seismology’, Institute for CyberScience, Penn State University, State College, PA, November 2018.
- ‘Deep learning mitigating ill-posedness in seismic inverse problems’, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, China, July 2018
- ‘Deep learning mitigating ill-posedness in seismic inverse problems’, Institute of Geophysics, China Earthquake Administration, Beijing, China, June 2018
- 2017
- ‘On the spectrum of the earth’, Laboratoire Jean Kuntzmann, Université Grenoble Alpes, Grenoble, France, December 2017
- ‘Can we solve the seismic inverse problem?’, Department of Mathematics, University of Texas at Austin, Austin, TX, February 2017
- 2016
- ‘Inverse Problems in Exploration and Global Seismology’, Computer, Electrical and Mathematical Science and Engineering Division, KAUST, Saudi Arabia, November 2016.
- ‘Seismic inverse problems: Revealing Earth’s interior’, Lagrange Lecture, Dipartimento di Matematica “Giuseppe Peano”, Universtità degli Studi di Torino, Turin, Italy, February 2016.
- 2015
- ‘Uniqueness of seismic inverse source problems modeling microseismicity and ruptures and Construction of high-frequency direct waves generated by virtual interior point sources from the Neumann-to-Dirichlet map’, Dipartimento di Matematica e Geoscienze, Sezione di Matematica e Informatica, Universtità degli Studi di Trieste, Trieste, Italy, December 2015;
- ‘Seismic inverse problems’, IMPACT Distinguished Lecture, School of Mathematics, Georgia Institute of Technology, Atlanta, GA, October 2015;
- ‘The seismic inverse problem: Stability and reconstruction’, Mathematics Program, New York University Abu Dhabi, Abu Dhabi, UAE, October 2015;
- 2014
- ‘Earth as an unstructured mesh: Can we solve the seismic inverse problem?’, Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, October 2014;
- ‘Revealing Earth’s interior: From compressive imaging to nonlinear multi-scale iterative reconstruction’, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, July 2014;
- ‘Spatio-temporal imaging of ruptures and the discrete-time dependent inverse source problem for the wave equation’, Dipartimento di Matematica “Francesco Brioschi”, Politecnico di Milano, Milan, Italy, June 2014;
- 2013
- ‘Stability estimates for the inverse boundary value problem for the Helmholtz equation and iterative reconstruction’, Department of Mathematics, Stanford University, October 2013;
- ‘Revealing Earth’s interior: From compressive imaging to nonlinear multi-scale iterative reconstruction’, Department of Earth and Space Sciences, UCLA, Los Angeles CA, April 2013
- ‘Construction, computation, and properties of solutions of the wave equation with coefficients of limited smooothness’, Dipartimento di Matematica “Guido Castelnuovo”, Universita’ di Roma “La Sapienza”, Rome Italy, February 2013
- 2012
- ‘Revealing Earth’s interior: A geo-mathematical perspective’, Bold Aspirations and Visitor Lecture Series, University of Kansas, Lawrence KS, September 2012
- ‘Local analysis of the inverse boundary value problem for the Helmholtz equation and iterative reconstruction’, Department of Mathematical Sciences, Rensselaer Polytechnic Institute, Troy NY, September 2012
- ‘Local analysis of the inverse boundary value problem associated with the Helmholtz equation’, Institute of Computational Mathematics and Operations Research, Department of Mathematical Sciences, Tsinghua University, Beijing China, July 2012
- 2011
- ‘Elastic-wave inverse scattering with active and passive source reflection data’, Department of Mathematics, University College London, London England, December 2011
- ‘Seismic imaging and inverse scattering: A curvelet transform perspective’, Department of Mathematics, Chinese University of Hong Kong, Hong Kong China, August 2011
- ‘Construction, computation, and properties of solutions of the acoustic and elastic wave equations with coefficients of limited smoothness, Institute of Wave and Information’, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an China, June 2011
- 2010
- ‘Wave-equation imaging and inverse scattering: Multi-scale techniques and applications to the mantle beneath Hawaii’, Berkeley Seismological Laboratory, Department of Earth and Planetary Science, University of California at Berkeley, Berkeley CA, November 2010
- ‘Solution constructions, using wave packets, of the wave equation with coefficients of limited smoothness’, Laboratoire Jacques-Louis Lions, Université Pierre et Marie Curie, Paris France, May 2010
- ‘Inverse scattering and wave-equation tomography – Imaging Earth’s deep interior’, School of Mathematics, Georgia Institute of Technology, Atlanta GA, March 2010
- 2009
- ‘Inverse scattering and wave-equation tomography – Imaging Earth’s deep interior’, IAMCS- KAUST Seminar, Texas A & M University, College Station TX, February 2009
- 2008
- ‘Inverse scattering and wave-equation tomography – Imaging Earth’s deep interior’, Department of Mathematics, University of Kentucky, Lexington KY, Octber 2008
- ‘Inverse scattering and wave-equation tomography with wave packets’, Laboratoire d’Analyse et de Mathématiques Appliquées, Paris XII (Creteil) Paris France, May 2008
- ‘Inverse scattering and wave-equation tomography with wave packets’, Department of Mathematics, University of Vienna, Vienna Austria, May 2008
- 2007
- ‘Multi-scale approach to evolution equations with applications in seismic imaging’, Department of Mathematics, Penn State University, State College PA, November 2007
- 2006
- ‘Advances in imaging Earth’s interior, Mathematics in Science and Society’, Department of Mathematics, University of Illinois at Urbana-Champaign, Urbana IL, October 2006
- ‘A multi-scale approach to evolution equations with applications in wave-equation imaging and reflection tomography’, Department of Mathematics, University of Washington, Seattle WA, August 2006
- ‘Multi-scale aspects of wave-equation imaging and tomography’, Department of Mathematics, Harbin Institute of Technology, Harbin China, May 2006
- ‘Advances in imaging Earth’s interior’, Department of Geophysics, School of Earth and Space Sciences, Peking University, Beijing China, May 2006
- ‘Analysis of wave-equation tomography and imaging with curvelets’, Department of Mathematics and Statistics, Wichita State University, Wichita KS, February 2006
- 2005
- ‘Imaging of reflection seismic data with curvelets’, Centre for Mathematical Sciences, Lund Institute of Technology / Lund University, Lund Sweden, May 2005
- 2004
- ‘Nonlinear aspects of seismic inverse scattering’, Department of Mathematics, Purdue University, West Lafayette IN, November 2004
- ‘The impact of microlocal analysis on seismic imaging’, Institute of Geophysics, Russian Academy of Sciences, Novosibirsk Russia, July 2004
- ‘Introduction to seismic inverse scattering’, Theme Year in Mathematics 2003-2004, Inverse Problems and Related Topics, Helsinki Finland, May 2004
- ‘The role of microlocal analysis in seismic inverse scattering’, Department of Applied Mathematics, University of Crete, Heraklion Greece, March 2004
- 2003
- ‘The role of microlocal analysis in seismic inverse scattering’, Applied and Computational Mathematics, Division of Engineering and Applied Science, California Institute of Technology, Pasadena CA, November 2003
- ‘Feasibility of imaging Earth’s lowermost mantle’, Seismological Laboratory, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena CA, November 2003
- ‘Microlocal analysis and computational aspects of the downward continuation approach to seismic imaging, inversion and tomography’, Department of Mathematics and Statistics, Wichita State University, Wichita WA, April 2003
- 2002
- ‘Microlocal analysis of artifacts in seismic inverse scattering in the presence of caustics’, Institute of Applied Mathematics, University of British Columbia, Vancouver Canada, November 2002
- ‘The impact of microlocal analysis on exploration seismology’, Institut de Physique du Globe de Paris, Paris France, May 2002
- ‘Seismic inverse scattering in the wave-equation approach’, Department of Mathematical Sciences, Rensselaer Polytechnique Institute, Troy NY, April 2002
- ‘Seismic wavefield continuation in the single scattering approximation’, Serbian Academy of Arts and Sciences (SANU), Belgrade former Yugoslavia, March 2002
- 2001
- ‘The impact of microlocal analysis on exploration seismology’, Berkeley Seismological Laboratory, Department of Earth and Planetary Science, University of California at Berkeley, Berkeley CA, November 2001
- ‘Microlocal methods in seismic tomography’, Österreichische Mathematische Gesellschaft and Institut für Technische Mathematik, Geometrie und Bauinformatik, University of Innsbruck, Innsbruck Austria, May 2001
- ‘Tomography in complex media: An approach based upon microlocalization’, Bullard Laboratories, Department of Earth Sciences, University of Cambridge, Cambridge England, May 2001
- ‘Symplectic structure of wave-equation imaging and inversion’, Laboratoire de Mathématiques Applique´es, Universite´ de Pau et des Pays de l’Adour, Pau France, February 2001
- 2000
- ‘Microlocal methods and algorithms for seismic inversion’, Institut für Technische Mathematik, Geometrie und Bauinformatik, University of Innsbruck, Innsbruck Austria, June 2000
- ‘Recent advances in elastodynamic imaging and inversion, and characterization of heterogeneities’, Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge MA, May 2000
- ‘Seismic imaging, inversion and velocity analysis with multipathing’, Department of Applied Earth Sciences, Delft University of Technology, Delft the Netherlands, February 2000
- 1999
- ‘Inversion for singular medium perturbations in anisotropic elastic media: A Generalized Radon Transform approach’, Department of Mathematics, Gunma University, Kiryu Japan, August 1999
- ‘Inversion for singular medium perturbations in the presence of caustics’, Electromagnetics Laboratory, Helsinki University of Technology, Helsinki Finland, June 1999
- ‘Maslov asymptotic extension of Generalized Radon Transform inversion in anisotropic elastic media’, Department of Petroleum Engineering and Applied Geophysics, Norwegian University of Science and Technology, Trondheim Norway, May 1999
- ‘Inversion for singular medium perturbations in the presence of caustics’, Department of Mathematics, Statistics and Computer Science, Växjö University, Växjö Sweden, April 1999
- ‘Maslov asymptotic extension of Generalized Radon Transform inversion in anisotropic media: A least-squares approach’, Mathematics Department, Iowa State University, Ames IA, February 1999
- ‘Maslov asymptotic extension of Generalized Radon Transform inversion in anisotropic elastic media: A least-squares approach’, Department of Mechanical and Manufacturing Engineering, University of Calgary, Calgary Canada, February 1999
- 1998
- ‘Maslov asymptotic extension of Generalized Radon Transform inversion in anisotropic elastic media and Inversion based on the Generalized Bremmer Series’, Earth Resources Laboratory, Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge MA, November 1998
- ‘Generalized screens: Theory and algorithms’, Northwest Geology Research Institute, Lanzhou China, June 1998
- ‘Generalized Radon Transform inversion and multipathing’, Centre de Recherche en Géophysique, Ecôle des Mines de Paris, Paris France, April 1998
- 1997
- ‘Some remarks on nonlinear, multi-azimuth, AVA inversion’, Workshop Sobre Caracterização e Engenharia de Reservatórios, Unicamp, Campinas SP Brazil, September 1997
- ‘Generalized Bremmer series: Convergence, asymptotics, numerical issues’, Department of Electromagnetic Theory, Royal Institute of Technology, Stockholm Sweden, August 1997
- ‘Generalized Bremmer series: Convergence, asymptotics, numerical issues’, Department of Electromagnetic Theory, Lund University / Lund Institute of Technology, Lund Sweden, August 1997
- 1996
- ‘Aspects of multiparameter inversion in anisotropic solid media’, Department of Computational and Applied Mathematics, Rice University, Houston TX, October 1996
- ‘Heterogeneity, anisotropy, and their disguises in seismological multi-parameter inversion’, Institute of Theoretical Geophysics, Departments of Earth Sciences and Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge England, November 1996
- 1995
- ‘Progress in full-wave and asymptotic-ray inversion in anisotropic media’, Institute of Theoretical Geophysics, Departments of Earth Sciences and Applied Mathematics and Theoretical Physics, University of Cambridge, Cambridge England, March 1995
- 1993
- ‘A comparison between the even- and odd-order Thiele approximations to the one-way wave operator in the space-time domain’, Bullard Laboratories, Department of Earth Sciences, University of Cambridge, Cambridge England, May 1993
- ‘A comparison between the even- and odd-order Thiele approximations to the one-way wave operator in the space-time domain’, Institute of Geophysics, University of Texas, Austin TX, February 1993
- 1992
- ‘Generalization of the Bremmer coupling series’, Courant Institute, New York University, New York NY, November 1992
- 1990
- ‘Wave field decomposition in the direct and inverse acoustic scattering problems’, Center for the Mathematics of Waves, University of Delaware, Newark DE, October 1990