Results 41 to 50 of about 1,037 (65)

A presentation of the torus-equivariant quantum K-theory ring of flag manifolds of type A, Part II: quantum double Grothendieck polynomials

Forum of Mathematics, Sigma
In our previous paper, we gave a presentation of the torus-equivariant quantum K-theory ring $QK_{H}(Fl_{n+1})$ of the (full) flag manifold $Fl_{n+1}$ of type $A_{n}$ as a quotient of a polynomial ring by an explicit ideal.
Toshiaki Maeno, Satoshi Naito, Daisuke Sagaki   +2 more
doaj   +1 more source

The special Schubert calculus is real

, 1998
We show that the Schubert calculus of enumerative geometry is real, for special Schubert conditions. That is, for any such enumerative problem, there exist real conditions for which all the a priori complex solutions are real.Comment: 5 ...
Sottile, Frank
core   +2 more sources

Vanishing of Schubert coefficients via the effective Hilbert nullstellensatz

Forum of Mathematics, Sigma
Schubert Vanishing is a problem of deciding whether Schubert coefficients are zero. Until this work it was open whether this problem is in the polynomial hierarchy ${{\mathsf {PH}}}$ .
Igor Pak, Colleen Robichaux
doaj   +1 more source

On piecewise isomorphism of some varieties

, 2011
Two quasi-projective varieties are called piecewise isomorphic if they can be stratified into pairwise isomorphic strata. We show that the m-th symmetric power $S^m(C^n)$ of the complex affine space $C^n$ is piecewise isomorphic to $C^{mn}$ and the m-th ...
Gusein-Zade, S. M., Luengo, I., Melle-Hernandez, A.   +2 more
core  

On some invariants of cubic fourfolds. [PDF]

Eur J Math, 2023
Gounelas F, Kouvidakis A.
europepmc   +1 more source

The geometries of Jordan nets and Jordan webs. [PDF]

Ann Mat Pura Appl, 2022
Bik A, Eisenmann H, Eisenmann H.
europepmc   +1 more source

Grassmannians and Cluster Structures. [PDF]

Bull Iran Math Soc, 2021
Baur K.
europepmc   +1 more source

Vector bundles on rational homogeneous spaces. [PDF]

Ann Mat Pura Appl, 2021
Du R, Fang X, Gao Y.
europepmc   +1 more source

Virasoro conjecture for the stable pairs descendent theory of simply connected 3-folds (with applications to the Hilbert scheme of points of a surface). [PDF]

J Lond Math Soc, 2022
Moreira M.
europepmc   +1 more source

Miura opers and critical points of master functions

Open Mathematics, 2005
Mukhin Evgeny, Varchenko Alexander
doaj   +1 more source