Abstract:The invariants of finite-dimensional representations of simple Lie algebras, such as even-degree indices and anomaly numbers, are considered in the context of the non-crystallographic finite reflection groups H2, H3 and H4. Using a representation-orbit replacement, the definitions and properties of the indices are formulated for individual orbits of the examined groups. The indices of orders two and four of the tensor product of k orbits are determined. Using the branching rules for the non-crystallographic Co… Show more
“…In the case of a non-crystallographic group H 3 , there is no corresponding Lie algebra. However, procedure for finding lower orbits can be repeated with some modifications to the algorithm [11]. The procedure includes the following steps:…”
Section: Lower Orbits Of 3-dimensional Coxeter Groupsmentioning
The polyhedra with A
3, B
3/C
3, H
3 reflection symmetry group G in the real 3D space are considered. The recursive rules for finding orbits with smaller radii, which provide the structures of nested polytopes, are demonstrated.
“…In the case of a non-crystallographic group H 3 , there is no corresponding Lie algebra. However, procedure for finding lower orbits can be repeated with some modifications to the algorithm [11]. The procedure includes the following steps:…”
Section: Lower Orbits Of 3-dimensional Coxeter Groupsmentioning
The polyhedra with A
3, B
3/C
3, H
3 reflection symmetry group G in the real 3D space are considered. The recursive rules for finding orbits with smaller radii, which provide the structures of nested polytopes, are demonstrated.
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