Zobrazeno 1 - 10
of 560
pro vyhledávání: '"Webb, Rachel"'
We explain how to define an embedding of a tame stack over a noetherian ring into a certain generalization of a weighted projective stack using a notion of ample vector bundle on the stack. As applications we construct algebraic moduli stacks of tame
Externí odkaz:
http://arxiv.org/abs/2407.01743
We prove an explicit form of the Crepant Transformation Conjecture for Grassmannian flops. Our approach uses abelianization to first relate the restrictions of the Lagrangian cones to degree-2 classes, and then deduces the general result using ``expl
Externí odkaz:
http://arxiv.org/abs/2404.12302
Autor:
Sultani, Nawaz, Webb, Rachel
Let $Y\mathord{/\mkern-6mu/}_\theta G$ be a complete intersection in a GIT quotient $X\mathord{/\mkern-6mu/}_\theta G$ cut out by a $G$-representation $E$. We show that the $E$-twisted quasimap $I$-function recovers invariants of $(Y, G, \theta)$ if
Externí odkaz:
http://arxiv.org/abs/2208.08987
Autor:
Sultani, Nawaz, Webb, Rachel
Let $G$ be a complex reductive group and let $X$ and $E$ be two linear representations of $G$. Let $Y$ be a complete intersection in $X$ equal to the zero locus of a $G$-equivariant section of the trivial bundle $E \times X \to X$. We explain some ge
Externí odkaz:
http://arxiv.org/abs/2208.07439
Autor:
Maze, Michael James, Williman, Jonathan, Anstey, Rebekah, Best, Emma, Bhally, Hasan, Bryce, Aliya, Chang, Catherina L., Chen, Kevin, Dummer, Jack, Epton, Michael, Good, William R., Goodson, Jennifer, Grey, Corina, Grimwade, Kate, Hancox, Robert J., Hassan, Redzuan Zarool, Hills, Thomas, Hotu, Sandra, McArthur, Colin, Morpeth, Susan, Murdoch, David R., Pease, Fiona Elizabeth, Pylypchuk, Romana, Raymond, Nigel, Ritchie, Stephen, Ryan, Deborah, Selak, Vanessa, Storer, Malina, Walls, Tony, Webb, Rachel, Wong, Conroy, Wright, Karen
Publikováno v:
In IJID Regions September 2024 12
Autor:
Taylor, Amanda, Best, Emma J., Walls, Tony, Webb, Rachel, Bhally, Hasan, Bryce, Aliya, Chang, Cat L., Chen, Kevin, Dummer, Jack, Epton, Michael, Good, William, Goodson, Jennifer, Grey, Corina, Grimwade, Kate, Hancox, Robert J., Hassan, Redzuan Zarool, Hills, Thomas, Hotu, Sandra, McArthur, Colin, Morpeth, Susan, Murdoch, David R, Pease, Fiona, Pylypchuk, Romana, Raymond, Nigel, Ritchie, Stephen, Ryan, Debbie, Selak, Vanessa, Storer, Malina, Williman, Jonathan, Wong, Conroy, Wright, Karen, Maze, Michael J.
Publikováno v:
In IJID Regions September 2024 12
Autor:
Webb, Rachel
Let $Y$ be a complete intersection in an affine variety $X$, with action by a complex reductive group $G$. Let $T \subset G$ be a maximal torus. A character $\theta$ of $G$ defines GIT quotients $Y//_\theta G$ and $X//_\theta T$. We prove formulas re
Externí odkaz:
http://arxiv.org/abs/2109.12223
Autor:
Webb, Rachel
Publikováno v:
Forum of Mathematics, Sigma, Volume 10, 2022, Art. No. E78
We give a detailed proof that locally Noetherian moduli stacks of sections carry canonical obstruction theories. As part of the argument we construct a dualizing sheaf and trace map, in the lisse-etale topology, for families of tame twisted curves, w
Externí odkaz:
http://arxiv.org/abs/2109.03377
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