Schur-Weyl duality for quantum toroidal superalgebras
Kang Lu
本文建立了双重仿射 Hecke 代数与量子环面超代数之间的 Schur-Weyl 型对偶，将 Vasserot-Varagnolo [VV96] 的经典结果推广到了超情形。
我们建立了双重仿射 Hecke 代数与量子环面超代数之间的 Schur-Weyl 型对偶，将著名的 Vasserot-Varagnolo [VV96] 结果推广至超情形。
We establish the Schur-Weyl type duality between double affine Hecke algebras and quantum toroidal superalgebras, generalizing the well known result of Vasserot-Varagnolo [VV96] to the super case.
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We introduce the notion of $\imath$Schur superalgebra, which can be regarded as a type B/C counterpart of the $q$-Schur superalgebra (of type A) formulated as centralizer algebras of certain signed $q$-permutation modules over Hecke algebras. Some multiplication formulas for $\imath$Schur superalgebra are obtained to construct their canonical bases. Furthermore, we established an isomorphism theorem between the $\imath$Scuhr superalgebras and the $q$-Schur superalgebras of type A, which helps us derive a semisimplicity criteria of the $\imath$Schur superalgebras.
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The Regular Representation of the twisted queer $q$-Schur Superalgebra
本文研究量子 queer 超代数及其扭 queer $q$-Schur 超代数的表示，证明后者正则模可分解为不可约子模直和，从而确立其半单性。
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Elliptic surfaces and toroidal superalgebras
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本文利用超Schur-Weyl对偶性，将Hecke代数中心的两个基转移到量子Schur超代数的中心，得到其两个不同的基，相关分析基于双对称多项式环及其幂和基。
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Braid actions on quantum toroidal superalgebras
本研究证明了与gl_{m|n}型不同根系相关的量子环面超代数同构，且存在交换竖直与水平子代数的Miki自同构，核心方法是建立环面辫子群在这类代数直和上的作用。
Some multiplication formulas in queer $q$-Schur superalgebras
本文推导了 queer q-Schur 超代数标准基元素与偶、奇生成元的乘法公式，并利用 Hecke--Clifford 代数中的交换公式解决技术难点，为构造量子 queer 超群新实现及单位根处的 Schur--Olshanski 对偶应用奠定基础。
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We establish a new Howe duality between a pair of two queer Lie superalgebras (q(m),q(n)). This gives a representation theoretic interpretation of a well-known combinatorial identity for Schur Q-functions. We further establish the equivalence between this new Howe duality and the Schur-Sergeev duality between q(n) and a central extension $\Hy_k$ of the hyperoctahedral group H_k. We show that the zero-weight space of a q(n)-module with highest weight $λ$ given by a strict partition of n is an irreducible module over the finite group $\Hy_n$ parameterized by $λ$. We also discuss some consequence…
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Quantized enveloping superalgebra of type $P$
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Quantum toroidal algebras (or double affine quantum algebras) are defined from quantum affine Kac-Moody algebras by using the Drinfeld quantum affinization process. They are quantum groups analogs of elliptic Cherednik algebras (elliptic double affine Hecke algebras) to whom they are related via Schur-Weyl duality. In this review paper, we give a glimpse on some aspects of their very rich representation theory in the context of general quantum affinizations. We illustrate with several examples. We also announce new results and explain possible further developments, in particular on finite dime…
Constructing the quantum queer supergroup using Hecke-Clifford superalgebras
本文通过标准化queer v-Schur超代数的自然基并引入长元素取极限的方法，显式构造了从量子queer超群到queer q-Schur超代数的超代数同态，并给出了量子queer超群的一种新构造。
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本文引入量子仿射超代数的量子 Berezinian，证明其系数属于中心，构造另一族中心元素，并证明多个矩阵定理的类似物。
We introduce and study the quantum toroidal algebra $\mathcal{E}_{m|n}(q_1,q_2,q_3)$ associated with the superalgebra $\mathfrak{gl}_{m|n}$ with $m\neq n$, where the parameters satisfy $q_1q_2q_3=1$. We give an evaluation map. The evaluation map is a surjective homomorphism of algebras $\mathcal{E}_{m|n}(q_1,q_2,q_3) \to \widetilde{U}_q\,\widehat{\mathfrak{gl}}_{m|n}$ to the quantum affine algebra associated with the superalgebra $\mathfrak{gl}_{m|n}$ at level $c$ completed with respect to the homogeneous grading, where $q_2=q^2$ and $q_3^{m-n}=c^2$. We also give a bosonic realization of level…
By using certain quantum differential operators, we construct a super representation for the quantum queer supergroup U_v(q_n). The underlying space of this representation is a deformed polynomial superalgebra in 2n^2 variables whose homogeneous components can be used as the underlying spaces of queer q-Schur superalgebras. We then extend the representation to its formal power series algebra which contains a (super) submodule isomorphic to the regular representation of U_v(q_n). A monomial basis M for U_v(q_n) plays a key role in proving the isomorphism. In this way, we may present the quantum…
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该研究构建并分类超Satake图，发展量子超对称对理论，建立量子Iwasawa分解、构造拟K-矩阵，并提出ℓ量子超群与q-Brauer代数间的Schur对偶性。
The quantum $ε$lectrical Hopf algebra and categorification of Fock space
本文引入电KLR代数，证明其范畴化类型A电Lie代数的量子版本，并利用其循环商范畴化更高层Fock空间。
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该研究证明了B、C、D型量子仿射超代数的shuffle实现，发展了A类超型灌木理论，定义了对应量子环面超代数，还提出了带参数箭图下shuffle实现的通用框架。
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The Schur-Weyl duality, which started as the study of the commuting actions of the symmetric group $S_d$ and $\mathrm{GL}(n,\mathbb{C})$ on $V^{\otimes d}$ where $V=\mathbb{C}^n$, was extended by Drinfeld and Jimbo to the context of the finite Iwahori-Hecke algebra $H_d(q^2)$ and quantum algebras $U_q(\mathrm{gl}(n))$, on using universal $R$-matrices, which solve the Yang-Baxter equation. There were two extensions of this duality in the Hecke-quantum case: to the affine case, by Chari and Pressley, and to the super case, by Moon and by Mitsuhashi. We complete this chain of works by completing …
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Recently, Li and Yamazaki proposed a new class of infinite-dimensional algebras, quiver Yangian, which generalizes the affine Yangian $\mathfrak{gl}_{1}$. The characteristic feature of the algebra is the action on BPS states for non-compact toric Calabi-Yau threefolds, which are in one-to-one correspondence with the crystal melting models. These algebras can be bootstrapped from the action on the crystals and have various truncations. In this paper, we propose a $q$-deformed version of the quiver Yangian, referred to as the quiver quantum toroidal algebra (QQTA). We examine some of the consist…
We show that Hecke algebra of type B and a coideal subalgebra of the type A quantum group satisfy a double centralizer property, generalizing the Schur-Jimbo duality in type A. The quantum group of type A and its coideal subalgebra form a quantum symmetric pair. A new theory of canonical bases arising from quantum symmetric pairs is initiated. It is then applied to formulate and establish for the first time a Kazhdan-Lusztig theory for the BGG category O of the ortho-symplectic Lie superalgebras $\mathfrak{osp}(2m+1|2n)$. In particular, our approach provides a new formulation of the Kazhdan-Lu…
Recently, new classes of infinite-dimensional algebras, quiver Yangian (QY) and shifted QY, were introduced, and they act on BPS states for non-compact toric Calabi-Yau threefolds. In particular, shifted QY acts on general subcrystals of the original BPS crystal. A trigonometric deformation called quiver quantum toroidal algebra (QQTA) was also proposed and shown to act on the same BPS crystal. Unlike QY, QQTA has a formal Hopf superalgebra structure which is useful in deriving representations. In this paper, we define the shifted QQTA and study a class of their representations. We define 1d a…
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Approaching quantum queer supergroups using finite dimensional superalgebras (Preliminary version)
本文通过有限维queer q-Schur超代数将BLM的代数逼近方法推广到量子queer超群，建立了其新的代数实现。
The infinite affine Lie algebras of type ABCD, also called $\widehat{\mathfrak{gl}}(\infty)$, $\widehat{\mathfrak{o}}(\infty)$, $\widehat{\mathfrak{sp}}(\infty)$, are equivalent to subalgebras of the quantum $W_{1+\infty}$ algebras. They have well-known representations on the Fock space of either a Dirac fermion ($\hat A_\infty$), a Majorana fermion ($\hat B_\infty$ and $\hat D_\infty$) or a symplectic boson ($\hat C_\infty$). Explicit formulas for the action of the quantum $W_{1+\infty}$ subalgebras on the Fock states are proposed for each representation. These formulas are the equivalent of …
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