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arXiv 2409.08757hep-ph
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扩展到多元有理函数重构

Scaling up to Multivariate Rational Function Reconstruction

Andreas Maier

AI总结:

提出一种从黑盒探针重构多元有理函数的算法,在高能物理多圈振幅计算中应用,对稠密系数几乎最优,探针数接近未知数数。

摘要:

我提出了一种从黑盒探针重构多元有理函数的算法。在高能物理中,最重要的应用可能是计算多圈和多腿振幅,其中有理函数作为积分分部约化到基积分时的系数出现。我证明了对于稠密系数,该算法几乎是最优的,即所需探针数量接近未知数数量。

英文摘要:

I present an algorithm for the reconstruction of multivariate rational functions from black-box probes. The arguably most important application in high-energy physics is the calculation of multi-loop and multi-leg amplitudes, where rational functions appear as coefficients in the integration-by-parts reduction to basis integrals. I show that for a dense coefficient the algorithm is nearly optimal, in the sense that the number of required probes is close to the number of unknowns.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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