Abstract
From a quantum K-matrix of a fundamental representation of any quantum affine algebra, we construct one for the Kirillov–Reshetikhin module by fusion construction. Using the \(\imath \)crystal theory by the last author, we also obtain combinatorial K-matrices corresponding to the symmetric tensor representations of affine type A for all quasi-split Satake diagrams.
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Acknowledgements
The authors would like to thank the referees for their careful readings and insightful comments. The authors also thank Atsuo Kuniba and Yasuhiko Yamada for interest to our work. M.O. is supported by JSPS KAKENHI Grant Number JP19K03426, and H.W. by JP21J00013. This work was partly supported by Osaka Central Advanced Mathematical Institute (MEXT Joint Usage/Research Center on Mathematics and Theoretical Physics JPMXP0619217849).
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Kusano, H., Okado, M. & Watanabe, H. Kirillov–Reshetikhin Modules and Quantum K-matrices. Commun. Math. Phys. 405, 88 (2024). https://doi.org/10.1007/s00220-024-04975-y
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DOI: https://doi.org/10.1007/s00220-024-04975-y