Abstract
We define a family of homomorphisms on a collection of convolution algebras associated with quiver varieties, which gives a kind of coproduct on the Yangian associated with a symmetric Kac-Moody Lie algebra. We study its property using perverse sheaves.
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Acknowledgements
The author thanks D. Maulik and A. Okounkov for discussion on their works. This work was supported by the Grant-in-aid for Scientific Research (No.23340005), JSPS, Japan.
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Nakajima, H. (2013). Quiver Varieties and Tensor Products, II. In: Iohara, K., Morier-Genoud, S., Rémy, B. (eds) Symmetries, Integrable Systems and Representations. Springer Proceedings in Mathematics & Statistics, vol 40. Springer, London. https://doi.org/10.1007/978-1-4471-4863-0_16
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DOI: https://doi.org/10.1007/978-1-4471-4863-0_16
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