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Symmetry, Integrability and Geometry: Methods and Applications, 2015, Volume 11, 007, 13 pp.
DOI: https://doi.org/10.3842/SIGMA.2015.007
(Mi sigma988)
 

This article is cited in 1 scientific paper (total in 1 paper)

On a Certain Subalgebra of $U_q(\widehat{\mathfrak{sl}}_2)$ Related to the Degenerate $q$-Onsager Algebra

Tomoya Hattaia, Tatsuro Itob

a Iida Highschool, 1-1, Nonoe, Suzu, Ishikawa 927-1213, Japan
b School of Mathematical Sciences, Anhui University, 111 Jiulong Road, Hefei 230601, China
Full-text PDF (413 kB) Citations (1)
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Abstract: In [Kyushu J. Math. 64 (2010), 81–144], it is discussed that a certain subalgebra of the quantum affine algebra $U_q(\widehat{\mathfrak{sl}}_2)$ controls the second kind TD-algebra of type I (the degenerate $q$-Onsager algebra). The subalgebra, which we denote by $U'_q(\widehat{\mathfrak{sl}}_2)$, is generated by $e_0^+$, $e_1^\pm$, $k_i^{\pm1}$ $(i=0,1)$ with $e^-_0$ missing from the Chevalley generators $e_i^\pm$, $k_i^{\pm1}$ $(i=0,1)$ of $U_q(\widehat{\mathfrak{sl}}_2)$. In this paper, we determine the finite-dimensional irreducible representations of $U'_q(\widehat{\mathfrak{sl}}_2)$. Intertwiners are also determined.
Keywords: degenerate $q$-Onsager algebra; quantum affine algebra; TD-algebra; augmented TD-algebra; TD-pair.
Received: September 30, 2014; in final form January 15, 2015; Published online January 19, 2015
Bibliographic databases:
Document Type: Article
MSC: 17B37; 05E30
Language: English
Citation: Tomoya Hattai, Tatsuro Ito, “On a Certain Subalgebra of $U_q(\widehat{\mathfrak{sl}}_2)$ Related to the Degenerate $q$-Onsager Algebra”, SIGMA, 11 (2015), 007, 13 pp.
Citation in format AMSBIB
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\by Tomoya~Hattai, Tatsuro~Ito
\paper On a~Certain Subalgebra of $U_q(\widehat{\mathfrak{sl}}_2)$ Related to the Degenerate $q$-Onsager Algebra
\jour SIGMA
\yr 2015
\vol 11
\papernumber 007
\totalpages 13
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  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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    Symmetry, Integrability and Geometry: Methods and Applications
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