Divisibility of sums of products related to the q-Narayana numbers
摘要
Applying Andrews’ multi-series transformation, we prove the divisibility of certain sums of multiple products involving q-Narayana numbers, partially confirming a conjecture proposed by Guo and the second author. Moreover, we establish a new identity between q-Narayana numbers and q-Catalan numbers, thereby verifying a special case of another previous result of Guo and the second author.