Author information
V. Guillemin:
Department of Mathematics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
vwg@math.mit.edu
A. Uribe:
Department of Mathematics, University of Michigan, Ann Arbor, MI 48109, USA
uribe@umich.edu
Z. Wang:
Department of Mathematics, University of Science and Technology of China, Hefei, Anhi, 230026, China
wangzuoq@ustc.edu.cn
