Open gallery Prev » <picture class="lw_image"> <source type="image/webp" srcset="/live/image/gid/48/width/1000/8431_ruhan_zhao.rev.1658926571.webp 1x"/> <source type="image/jpeg" srcset="/live/image/gid/48/width/1000/8431_ruhan_zhao.rev.1658926571.jpg 1x"/> <img src="/live/image/gid/48/width/1000/8431_ruhan_zhao.rev.1658926571.jpg" width="250" height="375" alt="" data-max-w="250" data-max-h="375"/></picture> Next » Ruhan Zhao , Ph.D Professor (585) 395-2134 rzhao@brockport.edu Office: Brown Building 142 Website Education PhD Mathematics, University of Joensuu, Finland Areas of Specialty Complex Analysis and Operator Theory