?-classes of Brill–Noether Loci and a Determinantal Formula
?-classes of Brill–Noether Loci and a Determinantal Formula
复制标题
Brill–Noether 轨迹的 ? 类和行列式
DOI:
10.1093/imrn/rnab025
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发表时间:
2021
影响因子:
1
通讯作者:
Tarasca, Nicola
中科院分区:
文献类型:
--
作者:
Anderson, Dave;Chen, Linda;Tarasca, Nicola
We compute the Euler characteristic of the structure sheaf of the Brill–Noether locus of linear series with special vanishing at up to two marked points. When the Brill–Noether numberis zero, we recover the Castelnuovo formula for the number of special linear series on a general curve; when, we recover the formulas of Eisenbud-Harris, Pirola, and Chan–Martín–Pflueger–Teixidor for the arithmetic genus of a Brill–Noether curve of special divisors. These computations are obtained as applications of a new determinantal formula for the-theory class of certain degeneracy loci. Our degeneracy locus formula also specializes to new determinantal expressions for the double Grothendieck polynomials corresponding to 321-avoiding permutations and gives double versions of the flagged skew Grothendieck polynomials recently introduced by Matsumura. Our result extends the formula of Billey–Jockusch–Stanley expressing Schubert polynomials for 321-avoiding permutations as generating functions for flagged skew tableaux.
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DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
G. Pirola
通讯作者:
G. Pirola
影响因子:
0.7
作者:
M. Larsen
通讯作者:
M. Larsen
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
A. Parusiński;P. Pragacz
通讯作者:
P. Pragacz
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Brian Osserman
通讯作者:
Brian Osserman
DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
Thomas Hudson;T. Ikeda;T. Matsumura;H. Naruse
通讯作者:
H. Naruse