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math.RA2025
Realizing orders in rational sphere product algebras with three generators
Tseleung So, Donald Stanley, Stephen Theriault +1
The realization problem asks which algebras can be realized as the cohomology of spaces. We study this problem in the context of the orders in a graded rational exterior algebra on…
math.AT2025
Steenrod operations for -dimensional toric orbifolds
Tseleung So
We prove necessary and sufficient conditions for the existence of non-trivial Steenrod actions on the mod- cohomology of 4-dimensional toric orbifolds. As applications, the stab…