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math.RT2023
Representations of the super-Yangian of type
Alexander Molev, Eric Ragoucy
We are concerned with finite-dimensional irreducible representations of the Yangians associated with the orthosymplectic Lie superalgebras . Every such repre…
math-ph2023★ 1 cited
-Griffiths polynomials: Bispectrality and biorthogonality
N. Crampe, L. Frappat, J. Gaboriaud +3
We introduce a generalization of bivariate Griffiths polynomials depending on an additional parameter . These -Griffiths polynomials are bivariate, bispectral and biorthogona…
nlin.SI2023
A new integrable structure associated to the Camassa-Holm peakons
J. Avan, L. Frappat, E. Ragoucy
We provide a closed Poisson algebra involving the Ragnisco--Bruschi generalization of peakon dynamics in the Camassa--Holm shallow-water equation. This algebra is generated by thre…