Establishes an isomorphism between the newly introduced trio Hahn algebra and the meta Hahn algebra, yielding Hahn polynomials and biorthogonal rational functions as overlaps of eigensolutions in an algebraic framework.
Orthogonal functions from Gram determinants
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Algebraic Leonard trio approach to rational functions: the Hahn case
Establishes an isomorphism between the newly introduced trio Hahn algebra and the meta Hahn algebra, yielding Hahn polynomials and biorthogonal rational functions as overlaps of eigensolutions in an algebraic framework.