Relations between elliptic modular graphs

Relations between elliptic modular graphs
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椭圆模图之间的关系

DOI:
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发表时间:
2020
影响因子:
5.4
通讯作者:
A. Basu
A. Basu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
A. Basu

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我们考虑了某些椭圆模图函数,这些函数出现在亏格2弦不变量的非分离节点周围的渐近展开中,这些不变量出现在II型超弦理论中四个引力子振幅的低动量展开中的D8 - 4相互作用的被积函数中。这些椭圆模图具有由绿色函数给出的链接,以及它的全纯和反全纯导数。使用适当的辅助图在各个中间阶段的分析,我们表明,每个图可以单独表示的图形与链接仅由绿色函数,而不是其衍生物。这导致在椭圆模图的空间中的基本元素的数量减少。
We consider certain elliptic modular graph functions that arise in the asymptotic expansion around the non-separating node of genus two string invariants that appear in the integrand of the D8ℛ4 interaction in the low momentum expansion of the four graviton amplitude in type II superstring theory. These elliptic modular graphs have links given by the Green function, as well its holomorphic and anti-holomorphic derivatives. Using appropriate auxiliary graphs at various intermediate stages of the analysis, we show that each graph can be expressed solely in terms of graphs with links given only by the Green function and not its derivatives. This results in a reduction in the number of basis elements in the space of elliptic modular graphs.
DOI: 10.1007/jhep12(2021)063
发表时间: 2021
影响因子: 5.4
作者:
D’Hoker, Eric;Schlotterer, Oliver
通讯作者: Schlotterer, Oliver
DOI: 10.1007/jhep02(2021)139
发表时间: 2021
影响因子: 5.4
作者:
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通讯作者: Schlotterer, Oliver
DOI: 10.1007/jhep08(2020)135
发表时间: 2020
影响因子: 5.4
作者:
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通讯作者: Schlotterer, Oliver
DOI: 10.1007/jhep07(2019)149
发表时间: 2019
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通讯作者: Green, Michael B.