Equal sums in random sets and the concentration of divisors
Equal sums in random sets and the concentration of divisors
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随机集合中的等和以及除数的集中
DOI:
10.1007/s00222-022-01177-y
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发表时间:
2023
影响因子:
3.1
通讯作者:
Koukoulopoulos, Dimitris
中科院分区:
文献类型:
--
作者:
Ford, Kevin;Green, Ben;Koukoulopoulos, Dimitris
We study the extent to which divisors of a typical integernare concentrated. In particular, defining, we show thatfor almost alln, a bound we believe to be sharp. This disproves a conjecture of Maier and Tenenbaum. We also prove analogs for the concentration of divisors of a random permutation and of a random polynomial over a finite field. Most of the paper is devoted to a study of the following much more combinatorial problem of independent interest. Pick a random setby selectingito lie inwith probability 1/i. What is the supremum of all exponentssuch that, almost surely as, some integer is the sum of elements ofinkdifferent ways? We characteriseas the solution to a certain optimisation problem over measures on the discrete cube, and obtain lower bounds forwhich we believe to be asymptotically sharp.
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DOI:
10.1017/s0305004100071620
发表时间:
1993-09
影响因子:
0.8
作者:
R. Arratia;A. Barbour;S. Tavaré
通讯作者:
R. Arratia;A. Barbour;S. Tavaré
DOI:
--
发表时间:
1964
期刊:
影响因子:
--
作者:
P. Erdös
通讯作者:
P. Erdös
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
G. Tenebaum
通讯作者:
G. Tenebaum
影响因子:
1.9
作者:
G. Tenenbaum
通讯作者:
G. Tenenbaum
DOI:
--
发表时间:
1948
期刊:
影响因子:
--
作者:
P. Erdös
通讯作者:
P. Erdös