Showing 1 - 20 results of 140 for search '"Grassmannian"', query time: 0.08s Refine Results
  1. 1

    Network parameterizations for the Grassmannian by Kelli Talaska, Lauren Williams

    Published 2013-01-01
    Subjects: “…grassmannian…”
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    EQUIVARIANT $K$ -THEORY OF GRASSMANNIANS by OLIVER PECHENIK, ALEXANDER YONG

    Published 2017-01-01
    “…We address a unification of the Schubert calculus problems solved by Buch [A Littlewood–Richardson rule for the $K$ -theory of Grassmannians, Acta Math. 189 (2002), 37–78] and Knutson and Tao [Puzzles and (equivariant) cohomology of Grassmannians, Duke Math. …”
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    Total positivity for the Lagrangian Grassmannian by Rachel Karpman

    Published 2020-04-01
    “…The positroid decomposition of the Grassmannian refines the well-known Schubert decomposition, and has a rich combinatorial structure. …”
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    POSITIVE GRASSMANNIAN AND POLYHEDRAL SUBDIVISIONS by POSTNIKOV, ALEXANDER

    Published 2021
    “…© ICM 2018.All rights reserved. The nonnegative Grassmannian is a cell complex with rich geometric, algebraic, and combinatorial structures. …”
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    Sign variation, the Grassmannian, and total positivity by Steven N. Karp

    Published 2015-01-01
    Subjects: “…totally nonnegative grassmannian…”
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    On Lagrangian Grassmannian Variety and Plücker Matrices by Jesús Carrillo-Pacheco

    Published 2024-03-01
    Subjects: “…Lagrangian Grassmannian…”
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    Non-planar BCFW Grassmannian geometries by Shruti Paranjape, Jaroslav Trnka, Minshan Zheng

    Published 2022-12-01
    “…We show that these terms can be interpreted as dlog forms on the non-planar Grassmannian geometries, generalizing the cells of the positive Grassmannian G +(k, n) to a larger class of objects which live in G(k, n). …”
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    On the Variety of Paths on Complete Intersections in Grassmannians by S. M. Yermakova

    Published 2014-08-01
    “…In this article we study the Fano variety of lines on the complete intersection of the grassmannian G(n, 2n) with hypersurfaces of degrees d1 ..., di . …”
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    Arrangements of equal minors in the positive Grassmannian by Farber, Miriam, Postnikov, Alexander

    Published 2018
    “…Weakly separated sets, originally introduced by Leclerc and Zelevinsky, are closely related to the positive Grassmannian and the associated cluster algebra. However, we also construct examples of arrangements of smallest minors which are not weakly separated using chain reactions of mutations of plabic graphs. …”
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    A $t$-generalization for Schubert Representatives of the Affine Grassmannian by Avinash J. Dalal, Jennifer Morse

    Published 2013-01-01
    “…We introduce two families of symmetric functions with an extra parameter $t$ that specialize to Schubert representatives for cohomology and homology of the affine Grassmannian when $t=1$. The families are defined by a statistic on combinatorial objects associated to the type-$A$ affine Weyl group and their transition matrix with Hall-Littlewood polynomials is $t$-positive. …”
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    Real Hypersurfaces in Complex Grassmannians of Rank Two by Dehe Li, Shujie Zhai

    Published 2021-12-01
    Subjects: “…complex Grassmannians of rank two…”
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    The ABC's of affine Grassmannians and Hall-Littlewood polynomials by Avinash J. Dalal, Jennifer Morse

    Published 2012-01-01
    “…In doing so, we prove a new combinatorial formula for representatives of the Schubert classes for the cohomology of affine Grassmannians. We show how new combinatorics involved in our formulas gives the Kostka-Foulkes polynomials and discuss how this can be applied to study the transition matrices between Hall-Littlewood and $k$-Schur functions.…”
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    Arrangements Of Minors In The Positive Grassmannian And a Triangulation of The Hypersimplex by Miriam Farber, Yelena Mandelshtam

    Published 2015-01-01
    “…The structure of zero and nonzero minors in the Grassmannian leads to rich combinatorics of matroids. …”
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    Torus quotient of the Grassmannian $G_{n,2n}$ by Nayek, Arpita, Saha, Pinakinath

    Published 2023-11-01
    Subjects: “…Grassmannian…”
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