The algebra ${\cal A}_q$, $q-$Onsager algebras and coideal subalgebras: two open problems
Pascal Baseilhac

TL;DR
This paper introduces the algebra ${\
Contribution
It presents an elementary overview and highlights two open problems in the study of ${\cal A}_q$, $q$-Onsager algebras, and coideal subalgebras.
Findings
Identification of two key open problems
Clarification of foundational concepts in the algebraic structures
Guidance for future research directions
Abstract
A brief and elementary introduction to the subject is presented. Two open problems are given.
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Taxonomy
TopicsAlgebraic structures and combinatorial models · Advanced Topics in Algebra · Nonlinear Waves and Solitons
