Contact

  Lisboa 2010
Lisboa 2010
   Assoc. Prof. Phan Thanh An
   Institute of Mathematics
   Vietnam Academy of Science  
   and Technology
  18 Hoang Quoc Viet Road
   Cau Giay District
   Hanoi, Vietnam

Present address:
   Institute of Mathematical and Computer Sciences 
   University of São Paulo
   Av. Trabalhador são-carlense
   400  São Carlos-SP, Brasil

E-mail:
   thanhan at math.ac.vn
   phan_thanhan at  yahoo.com