Name  Hiroka Hashimoto 

Affiliation  Tokyo Woman's Christian University 
Talk type  Session 
Time  Jan 9 16:00~16:20 
Location  E11103 
Title  On ConwayGordon type theorems for graphs in the Petersen family 
Abstract 
For every spatial embedding of each graph in the Petersen family, it is known that the sum of the linking numbers over all of the constituent 2component links is congruent to 1 modulo 2. In this talk, we give an integral lift of the fact above in terms of the square of the linking number and the second coefficient of the Conway polynomial. This is a joint work with Ryo Nikkuni.

Slide  10319/Hashimoto120109.pdf 