Guoqing Wang

activity

20092026

6 citations · 20 across the 26 of their papers we have counts for

collaborators

Showing 2014Show all

2 papers · 1 filter

Guoqing Wang

Let $S$ be a finite commutative semigroup. The Davenport constant of $S$ , denoted $D (S)$ , is defined to be the least positive integer $ℓ$ suc…

Guoqing Wang

Let $S$ be a finite semigroup, and let $E (S)$ be the set of all idempotents of $S$ . Gillam, Hall and Williams proved in 1972 that every $S$ -…