scholarly journals Numerical Schubert calculus via the Littlewood-Richardson homotopy algorithm

2020 ◽  
pp. 1
Author(s):  
Anton Leykin ◽  
Abraham Martín del Campo ◽  
Frank Sottile ◽  
Ravi Vakil ◽  
Jan Verschelde
Keyword(s):  
Schubert Calculus ◽  
Homotopy Algorithm

Numerical Schubert Calculus by the Pieri Homotopy Algorithm

2002 ◽  
Vol 40 (2) ◽  
pp. 578-600 ◽  
Author(s):  
T. Y. Li ◽  
Xiaoshen Wang ◽  
Mengnien Wu
Keyword(s):  
Schubert Calculus ◽  
Homotopy Algorithm

scholarly journals Equivariant -theory of Grassmannians II: the Knutson–Vakil conjecture

2017 ◽  
Vol 153 (4) ◽  
pp. 667-677 ◽  
Author(s):  
Oliver Pechenik ◽  
Alexander Yong
Keyword(s):  
Schubert Calculus ◽  
Equivariant Theory

In 2005, Knutson–Vakil conjectured apuzzlerule for equivariant$K$-theory of Grassmannians. We resolve this conjecture. After giving a correction, we establish a modified rule by combinatorially connecting it to the authors’ recently proved tableau rule for the same Schubert calculus problem.

scholarly journals Schubert calculus and threshold polynomials of affine fusion

2000 ◽  
Vol 584 (3) ◽  
pp. 795-809 ◽  
Author(s):  
S.E. Irvine ◽  
M.A. Walton
Keyword(s):  
Schubert Calculus

scholarly journals Dynamic Pole Assignment and Schubert Calculus

1996 ◽  
Vol 34 (3) ◽  
pp. 813-832 ◽  
Author(s):  
M. S. Ravi ◽  
Joachim Rosenthal ◽  
Xiaochang Wang
Keyword(s):  
Pole Assignment ◽  
Schubert Calculus

scholarly journals The elliptic Weyl character formula

2014 ◽  
Vol 150 (7) ◽  
pp. 1196-1234 ◽  
Author(s):  
Nora Ganter
Keyword(s):  
Line Bundle ◽  
Lie Groups ◽  
Theoretical Framework ◽  
Flag Variety ◽  
Schubert Calculus ◽  
Character Formula ◽  
Elliptic Cohomology ◽  
Image Position ◽  
Weyl Character Formula

AbstractWe calculate equivariant elliptic cohomology of the partial flag variety$\def \xmlpi #1{}\def \mathsfbi #1{\boldsymbol {\mathsf {#1}}}\let \le =\leqslant \let \leq =\leqslant \let \ge =\geqslant \let \geq =\geqslant \def \Pr {\mathit {Pr}}\def \Fr {\mathit {Fr}}\def \Rey {\mathit {Re}}G/H$, where$H\subseteq G$are compact connected Lie groups of equal rank. We identify the${\rm RO}(G)$-graded coefficients${\mathcal{E}} ll_G^*$as powers of Looijenga’s line bundle and prove that transfer along the map$$\begin{equation*} \pi \,{:}\,G/H\longrightarrow {\rm pt} \end{equation*}$$is calculated by the Weyl–Kac character formula. Treating ordinary cohomology,$K$-theory and elliptic cohomology in parallel, this paper organizes the theoretical framework for the elliptic Schubert calculus of [N. Ganter and A. Ram,Elliptic Schubert calculus, in preparation].

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