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A Note on the Geometry of Figurate Numbers
The American Mathematical Monthly ( IF 0.4 ) Pub Date : 2021-04-27 , DOI: 10.1080/00029890.2021.1895660 František Marko 1 , José L. Cereceda 2
中文翻译:
关于数字几何的注记
更新日期:2021-04-28
The American Mathematical Monthly ( IF 0.4 ) Pub Date : 2021-04-27 , DOI: 10.1080/00029890.2021.1895660 František Marko 1 , José L. Cereceda 2
Affiliation
Abstract
For positive integers n and p, we give a short proof of a formula expressing np as a linear combination of figurate numbers with coefficients given by the numbers of -dimensional facets of p-dimensional simplices obtained by cutting a p-dimensional cube, where . This formula was formulated as Conjecture 16 in F. Marko and S. Litvinov (2020), Geometry of figurate numbers and sums of powers of consecutive natural numbers, this Monthly, 127(1): 4–22.
中文翻译:
关于数字几何的注记
摘要
对于正整数n和p,我们给出了一个简短的公式证明,该公式将n p表示 为数字与系数给定的线性组合。 的 通过切割p维立方体获得的p维单纯形的三维小平面,其中。这个公式在F. Marko和S. Litvinov(2020)中被公式化为猜想16,它是图形数的几何以及连续自然数的幂之和,该模型最后以127(1):4-22的形式出现。