<p>The connection between simple Lie algebras and their Yangian algebras has a long history. In this work, we construct finite-dimensional representations of Yangian algebras <InlineEquation ID="IEq1"> <EquationSource Format="MATHML"><math display="inline"> <mi mathvariant="normal">Y</mi> <mfenced close=")" open="("> <mrow> <mi mathvariant="fraktur">s</mi> <msub> <mi mathvariant="fraktur">l</mi> <mi>n</mi> </msub> </mrow> </mfenced> </math></EquationSource> <EquationSource Format="TEX">\( \textrm{Y}\left(\mathfrak{s}{\mathfrak{l}}_n\right) \)</EquationSource> </InlineEquation> using the quiver approach. Starting from quivers associated to Dynkin diagrams of type A, we construct a family of quiver Yangians. We show that the quiver description of these algebras enables an effective construction of representations with a single non-zero Dynkin label. For these representations, we provide an explicit construction using the equivariant integration over the corresponding quiver moduli spaces. The resulting states admit a crystal description and can be identified with the Gelfand-Tsetlin bases for <InlineEquation ID="IEq2"> <EquationSource Format="MATHML"><math display="inline"> <mi mathvariant="fraktur">s</mi> <msub> <mi mathvariant="fraktur">l</mi> <mi>n</mi> </msub> </math></EquationSource> <EquationSource Format="TEX">\( \mathfrak{s}{\mathfrak{l}}_n \)</EquationSource> </InlineEquation> algebras. Finally, we show that the resulting Yangians possess notable algebraic properties, and the algebras are isomorphic to their alternative description known as the second Drinfeld realization.</p>

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Quiver Yangian algebras associated to Dynkin diagrams of A-type and their rectangular representations

  • A. Gavshin

摘要

The connection between simple Lie algebras and their Yangian algebras has a long history. In this work, we construct finite-dimensional representations of Yangian algebras Y s l n \( \textrm{Y}\left(\mathfrak{s}{\mathfrak{l}}_n\right) \) using the quiver approach. Starting from quivers associated to Dynkin diagrams of type A, we construct a family of quiver Yangians. We show that the quiver description of these algebras enables an effective construction of representations with a single non-zero Dynkin label. For these representations, we provide an explicit construction using the equivariant integration over the corresponding quiver moduli spaces. The resulting states admit a crystal description and can be identified with the Gelfand-Tsetlin bases for s l n \( \mathfrak{s}{\mathfrak{l}}_n \) algebras. Finally, we show that the resulting Yangians possess notable algebraic properties, and the algebras are isomorphic to their alternative description known as the second Drinfeld realization.