41 citations · 344 across the 47 of their papers we have counts for
49 papers
Quantum symmetries and nimreps for an exotic exceptional modular invariant of F4 at level 6
Robert Coquereaux
We revisit an old non-diagonal modular invariant of at level , discovered in 1989. At the time of its discovery, it was noticed that it could not be obtained from a confor…
SU(3) higher roots and their lattices
Robert Coquereaux
After recalling the notion of higher roots (or hyper-roots) associated with "quantum modules" of type , for a semi-simple Lie group and a positive integer, followin…
Counting partitions by genus: a compendium of results
Robert Coquereaux, Jean-Bernard Zuber
We study the enumeration of set partitions, according to their length, number of parts, cyclic type, and genus. We introduce genus-dependent Bell, Stirling numbers, and Faà di Brun…
About integer-valued variants of the theta and 6j symbols
Robert Coquereaux
These notes contain essentially a rewriting of several properties of two well-known quantities, the so-called theta symbol (or triangular symbol), which is rational, and the 6j sym…
About left-invariant geometry and homogeneous pseudo-Riemannian Einstein structures on the Lie group SU(3)
Robert Coquereaux
This is a collection of notes on the properties of left-invariant metrics on the eight-dimensional compact Lie group SU(3). Among other topics we investigate the existence of invar…
Multiplicities, pictographs, and volumes
Robert Coquereaux
The present contribution is the written counterpart of a talk given in Yerevan at the SQS'2019 International Workshop "Supersymmetries and Quantum Symmetries" (SQS'2019, 26 August…