nLab Darij Grinberg

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Selected writings

On a gap in the proof of Orzech's theorem

• Darij Grinberg: Is Orzech’s generalization of the surjective-endomorphism-is-injective theorem correct? (2014) [MO:q/1065786]

and a new constructive proof:

• Darij Grinberg: A constructive proof of Orzech’s theorem (2016) [pdf, pdf]

On the group algebra of the symmetric group:

• Darij Grinberg: An introduction to the symmetric group algebra (2025) [arXiv:2507.20706]

category: people