Jungin Lee

activity

20162026

most citedJoint distribution of the cokernels of random

p

-adic matrices

12 citations · 43 across the 19 of their papers we have counts for

collaborators

Showing 2016Show all

3 papers · 1 filter

math.NT2016★ 9 cited

Integral matrices as diagonal quadratic forms

Jungin Lee

In this paper, we investigate the conditions under which a diagonal quadratic form $\sum_{i = 1}^{m} a_{i} X_{i}^{2}$ represents every $n \times n$ integral matrix, where $a_{i}$ ($1 \leq i \…

math.NT2016

On a sum of positive rational numbers whose product is 1

Jungin Lee

In this note, we prove that for every two positive integers $m \geq n \geq 9$ , there exist $n$ positive rational numbers whose product is 1 and sum is $m$ .

math.GR2016

On a finite subsemigroup of semigroups in which x^r=x

Jungin Lee

In this paper, we consider the following problem: For every positive integer $r \geq 2$ , find all positive integers $n$ such that for every semigroup of order $\geq n$ in which $x^…