We construct stable envelopes in equivariant elliptic cohomology of Nakajima quiver varieties. In particular, this gives an elliptic generalization of the results of arXiv:1211.1287. We apply them to the computation of the monodromy of $q$-difference equations arising the enumerative K-theory of rational curves in Nakajima varieties, including the quantum Knizhnik-Zamolodchikov equations.

中文翻译：

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椭圆稳定包络

我们在 Nakajima quiver 变种的等变椭圆上同调中构建了稳定的包络。特别是，这给出了 arXiv:1211.1287 的结果的椭圆概括。我们将它们应用于 $q$-差分方程的单项性计算，这些方程产生于 Nakajima 变体中的有理曲线的枚举 K 理论，包括量子 Knizhnik-Zamolodchikov 方程。