The 2015 International Workshop on Mathematical Sciences in Dalian will be held October 30-November 1, 2015, in Dalian, China. The workshop intends to provide a forum for participants, including junior researchers and Ph.D students, to communicate on their work on the major active topics in the various fields of mathematics. The workshop will consists of about 18 invited talks (each 30 minutes) and two parallel sessions of 30 talks (each 20 minutes, mainly for junior researchers and Ph.D students). 　　We hope that you will take the opportunity to socialize and network with new acquaintances, and build upon those relationships which have already been established to sustain our collaboration.