**NEWS**

**2016**

- Nov 24: My paper with Markus Haltmeier on “Iterative Method for Photoacoustic Tomography with Variable Speed” has been submitted. See the prepritn on arxiv
- Nov 8: I gave an invited talk at the Colloquium, Department of Mathematics, University of North Carolina at Charlotte
- Nov 5: I gave an invited talk at the Colloquium, Department of Mathematics, Georgetown University
- Oct 27: I gave an invited talk at Inverse Problems Seminar at Colorado State University
- Oct 3: I will organize (jointly with Markus Haltmeier) the mini-symposium on “Inverse problems for Radiative Transfer Equation and Broken Ray Approximation” at 100 Years of Radon Transform conference
- Nov 31: My paper with Julianne Chung on “Motion Estimation and Correction in Photoacoustic Tomographic Reconstruction” has been accepted for publication on SIAM Journal of Imaging Science
- Sept 16: I gave an invited talk at miniworkshop “Current and future trends in computed tomography"
- July 5: I received an NSF grant on “Mathematics of Tomography"
- June 3: My paper with Leonid Kunyansky was published on SIAM Journal of Imaging Sciences (Vol 9, Issue 2)
- May 23-26: I attended the SIAM Conference on Imaging Sciences in Albuquerque. My talk “A dissipated time-reversal technique for photo-acoustic tomography” was given in the minisymposium “Recent Developments in Hybrid Inverse Problems and Imaging”.
- May 27: My paper "On the strength of streak artifacts in filtered-backprojection reconstructions for limited angle weighted X-ray transform” was accepted for publication on Journal of Fourier Analysis and Applications.
- March 9: I gave a talk at the Applied Inverse Problems seminar at Texas A&M University.
- Feb: My paper "Range Description for a Spherical Mean Transform on Spaces of Constant Curvatures” was pulished on Journal d’Analyses Mathematique (Vol. 128, Iss.1, pp. 191-214)
- Feb 8: I pitched my work with Daniel Schmalz on “Simultaneous Image Reconstruction and Deblurring in Photo-acoustic Tomography” on Vandals Idea Project Event.

**2015**

- Dec: My paper with Lyudmyla Barannyk and Juergen Frikel "
*On artifacts in limited data spherical Radon transform: curved observation surfaces”*was published on Inverse Problems (Vol 32, No. 1) - Sep 29 - Oct 4: I visited Francois Monard at the University of Michigan at Ann Arbor.
- Sep 10: I gave a talk on “
*Mathematics of Thermo-acoustic/Photo-acoustic Tomography*” at the Math Colloquium, University of Idaho. - Jul 19-21: I visited Julianne Chung at Virginia Tech. We worked on algorithms for TAT with moving object.
- Jul 12-17: I was an invited speaker at the workshop on “Computational and Analytical Aspects of Image Reconstruction,” ICERM, Brown University. My talk is titled “A new time-reversal technique for Thermo-acoustic Tomography in a Cavity.”
- Jun 23-26: I visited the Computational Bioimaging Laboratory at the Washington University at St. Louis to work with Mark Anastasio and his group.
- Jun 14-19: I was an invited speaker at the BIRS Workshop on “Hybrid Methods in Imaging”, Banff International Research Station, Canada. My talk is “
*On the artifacts in a limited data spherical Radon transform.*” - Jun 8-12: I was an invited speaker at the workshop on “Geometric Inverse Problems” at the Institute Henri Poincare, Paris, France. The title of my talk is “
*On the streak artifacts in limited angle computed X-ray tomography.*” - Jun 1-7: I visited the Applied Mathematics Group at the University of Innsbruck, Austria.
- May 25-29: I was an invited speaker at the conference on “Applied Inverse Problems” in Helsinki, Finland. My talk is “
*On the artifacts in a limited data spherical mean transform*” at the Special section on “*Current developments in tomography: from theory to algorithms.*”