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arXiv · 2308.02806

Invariant integral structures in pseudo $H$-type Lie algebras: construction and classification

Kenro Furutani·Irina Markina
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Abstract

Pseudo $H$-type Lie algebras are a special class of 2-step nilpotent metric Lie algebras, intimately related to Clifford algebras $\Cl_{r,s}$. In this work we propose the classification method for integral orthonormal structures of pseudo $H$-type Lie algebras. We apply this method for the full classification of these structures for $r\in\{1,\ldots,16\}$, $s\in \{0,1\}$ and irreducible Clifford modules. The latter cases form the basis for the further extensions by making use of the Atiyah-Bott periodicity. The existence of integral structures gives rise to the integral discrete uniform subgroups of the pseudo $H$-type Lie groups.

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Kenro Furutani, Irina Markina. 2023-08-05. Invariant integral structures in pseudo $H$-type Lie algebras: construction and classification. https://arxiv.org/abs/2308.02806

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