Перегляд Symmetry, Integrability and Geometry: Methods and Applications (SIGMA) за автором "Hamrouni, H."

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Discrete Cocompact Subgroups of the Five-Dimensional Connected and Simply Connected Nilpotent Lie Groups

Ghorbel, A.; Hamrouni, H. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)

The discrete cocompact subgroups of the five-dimensional connected, simply connected nilpotent Lie groups are determined up to isomorphism. Moreover, we prove if G = N × A is a connected, simply connected, nilpotent Lie ...
On the Moore Formula of Compact Nilmanifolds

Hamrouni, H. (Symmetry, Integrability and Geometry: Methods and Applications, 2009)

Let G be a connected and simply connected two-step nilpotent Lie group and Γ a lattice subgroup of G. In this note, we give a new multiplicity formula, according to the sense of Moore, of irreducible unitary representations ...

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