Hiroyuki Chihara     is a mathematician who has been working on partial differential equations and geometric analysis. Recently he is very interested in geometric tomography and tensor tomography, which are substantially geometric and microlocal analysis in integral geometry, and one of cutting edge research fields in pure mathematics. He is also interested in applied mathematics related to them including medical imaging, baggage inspection, seismology and etc.
College of Education, University of the Ryukyus, Nishihara, Okinawa 903-0213, Japan
chihara atmark edu.u-ryukyu.ac.jp