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A proof of Mao’s conjecture on an identity of Beck’s partition statistics

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Recently, Beck gave the definitions of two partition statistics NT(rmn) and \(M_{\omega }(r,m,n)\), which denote the total number of parts in the partition of n with rank congruent to r modulo m and the total number of ones in the partition of n with crank congruent to r modulo m, respectively. Beck also posed some conjectures on congruences for NT(rmn) which were confirmed by Andrews. After that, Chern discovered some new congruences on NT(rmn) and \(M_{\omega }(r,m,n)\). Motivated by their works, several identities on NT(rmn) and \(M_{\omega }(r,m,n)\) with \(m=5,7\) were established. In this paper, we confirm a conjecture on an identity on NT(r, 9, n) and \(M_{\omega }(r,3,n)\) due to Mao.

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Correspondence to Renrong Mao.

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This work was partially supported by National Natural Science Foundation of China (Grant Numbers 12071331, 11971341 and 11971203).

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Mao, R., Xia, E.X.W. A proof of Mao’s conjecture on an identity of Beck’s partition statistics. Ramanujan J 62, 633–648 (2023). https://doi.org/10.1007/s11139-022-00692-z

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