学术报告

发布者:蒋娟发布时间:2020-10-19浏览次数:394

学术报告

报告题目:Tensor products of $\mathbb{C}[K^{\pm 1}]$-free modules for $U_q(\mathfrak{sl}_2)$

报告人:陈洪佳 教授

报告时间:2020/10/20  9:00-10:00

报告形式:腾讯会议

会议 ID373 205 476

会议密码:666888

报告摘要:We study the $\mathbb{C}[K^{\pm 1}]$-free modules for the quantum group $U_q(\mathfrak{sl}_2)$ and their tensor products with finite-dimensional simple modules. We obtain some direct sum decomposition formulas for the tensor products, which are similar to the classical Clebsch-Gordan formulas. This talk is based on joint works with Yan-an Cai, Xiangqian Guo, Yao Ma and Mianmian Zhu.


报告人简介:陈洪佳,中国科学技术大学教授、博导。2008年于中国科学技术大学获得基础数学博士学位,20089月至20137月分别在加拿大约克大学、加拿大阿尔伯塔大学以及加拿大劳里埃大学从事学术研究工作。2014年到中国科学技术大学工作。主要从事无限维李代数、量子群的结构和表示理论的研究。近年来,陈洪佳教授在Trans. Amer. Math. Soc., Math. Z., J. Lond. Math. Soc., J. Alg.等杂志上发表学术论文20余篇。



报告题目:Howe duality for quantum queer superalgebras

报告人:汪永杰

报告时间:2020/10/20  10:00-11:00

报告形式:腾讯会议

会议 ID373 205 476

会议密码:666888

报告摘要:We establish a new Howe duality between a pair of quantum queer superalgebras ($\mathrm{U}_{q^{-1}}(\mathfrak{q}_n)$, $\Uq(\mathfrak{q}_m)$). The key ingredient is the construction of a non-commutative analogue $\mathcal{A}_q(\mathfrak{q}_n,\mathfrak{q}_m)$ of the symmetric superalgebra $S(\mathbb{C}^{mn|mn})$ with the use of quantum coordinate queer superalgebra. It turns out that this superalgebra is equipped with a $\Uqi(\mathfrak{q}_n)\otimes\Uq(\mathfrak{q}_m)$-supermodule structure that admits a multiplicity-free decomposition. We also show that the $(\Uqi(\mathfrak{q}_n),\Uq(\mathfrak{q}_m))$-Howe duality implies the Sergeev-Olshanski duality. This talk is based on a joint-work with Zhihua Chang.


报告人简介:汪永杰博士,2014年毕业于中国科学技术大学 ,获数学博士学位,20158-20187月在台湾大学从事博士后研究工作,现入职合肥工业大学数学学院。主要学术成果发表在J. Algebra,  Linear Algebra Appl., Science China Math.等期刊上。