Darij Grinberg

activity

20082026

most citedHopf Algebras in Combinatorics

120 citations · 245 across the 69 of their papers we have counts for

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3 papers · 1 filter

math.CO2017★ 1 cited

On binomial coefficients modulo squares of primes

Darij Grinberg

We give elementary proofs for the Apagodu-Zeilberger-Stanton-Amdeberhan-Tauraso congruences $n = 0 \sum p - 1 (n 2 n) \equiv η_{p} mod p^{2},$ $$\sum\limits_{n=0}^{rp…

math.CO2017★ 8 cited

Critical groups for Hopf algebra modules

Darij Grinberg, Jia Huang, Victor Reiner

This paper considers an invariant of modules over a finite-dimensional Hopf algebra, called the critical group. This generalizes the critical groups of complex finite group represe…

math.CO2017★ 2 cited

$t$ -Unique Reductions for Mészáros's Subdivision Algebra

Darij Grinberg

Fix a commutative ring $k$ , two elements $β, α \in k$ and a positive integer $n$ . Let $X$ be the polynomial ring over $k$ in the $n (n - 1) /2$ indete…

On binomial coefficients modulo squares of primes

Critical groups for Hopf algebra modules

t-Unique Reductions for Mészáros's Subdivision Algebra

$t$ -Unique Reductions for Mészáros's Subdivision Algebra