Computations Stiefel-Whitney classes of real representations for non-prime power groups

In the current study, the researchers conduct computation of the Stiefel- Whitney classes of real representations of non-prime power groups such as Mathieu groups, symmetric groups, alternating groups and Janko groups. Stiefel- Whitney classes are conducted by using polytope convex hull with vector in n-dimention our computation using the HAP (Homological Algebra Programming.