2 research outputs found
Regge and Okamoto symmetries
We will relate the surprising Regge symmetry of the Racah-Wigner 6j symbols
to the surprising Okamoto symmetry of the Painleve VI differential equation.
This then presents the opportunity to give a conceptual derivation of the Regge
symmetry, as the representation theoretic analogue of the author's previous
derivation of the Okamoto symmetry.
[The resulting derivation is quite simple, so it would be surprising if it
has not been previously observed. Any references would be appreciated!]Comment: 14 page