Combinatorial proofs of some results of Andrews and El Bachraoui
摘要
Recently, Andrews and El Bachraoui (Rev Real Acad Cienc Exactas Fis Nat Ser A Mat 119:4, 2024) proved three very interesting q-series identities, from which three simple looking identities involving certain restricted partitions into distinct even parts and 4-regular partitions follow. In this short note, we give combinatorial proofs of these identities. We also prove the counterpart identities for the restricted partitions into distinct odd parts.