John Lentfer

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20242026

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math.RT2026

The bigraded Frobenius series of the wreath product superspace coinvariant rings

Sutanay Bhattacharya, Sylvie Corteel, Yuhan Jiang +2

We determine the bigraded Frobenius series of the superspace coinvariant ring $R_{Z_{r} ≀ S_{n}}^{(1, 1)}$ for the wreath products $Z_{r} ≀ S_{n}$ , w…

math.RT2026

Sign components of diagonal superspace coinvariants

Nicolle González, John Lentfer, Hanna Mularczyk

We prove the sign-isotypic components of the coinvariant rings $R_{n}^{(2, 1)}$ and $R_{n}^{(2, 0)} \otimes R_{n}^{(0, 1)}$ are isomorphic and show that the triply-graded multiplicity of th…