Multiplicative structure of the cohomology of real toric spaces
Multiplicative structure of the cohomology of real toric spaces

Suyoung Choi, Ajou University/Northeastern University
Fine Hall 110
A real toric space is a topological space which admits a wellbehaved \Z_2^kaction.Real momentangle complexes, real toric varieties and small covers are typical examples of real toric spaces.
A real toric space is determined by the pair of a simplicial complex K and a characteristic matrix \Lambda.
In this talk, we discuss an explicit cohomology ring formula of a real toric space in terms of K and \Lambda, where R is a commutative ring with unity in which 2 is a unit. Interestingly, it has a natural (\Z \oplus \row \Lambda)grading.
This talk is mainly based on the joint work with Hanchul Park.