Abstract

AbstractWe explain how A. Givental’s mirror symmetric family [14] to the typeAag variety and its proposed generalization [3] to partial ag varieties by Batyrev, Ciocan-Fontanine, Kim and van Straten relate to the Peterson varietyY ⊂ SLn/B. We then use this theory to describe the totally nonnegative part ofY, extending a result from [30].

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