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arXiv · 2606.31766

Embedding a graded matrix algebra into an elementary graded

Pavel Sokolov
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Abstract

M.V. Zaicev and S.K. Segal, as well as S. Dăscălescu, B. Ion, C. Năstăsescu, and D. Raios Montes studied certain gradings on matrix rings and algebras - 'elementary' gradings. However, examples of gradings on a matrix ring that are not elementary are known. In the present article, we show that any subalgebra of a full matrix ring over an arbitrary graded division ring can be embedded in an elementary graded matrix ring.

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Pavel Sokolov. 2026-06-30. Embedding a graded matrix algebra into an elementary graded. https://arxiv.org/abs/2606.31766

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