Abstract
Let M(t, m, n) be the number of partitions of n with crank congruent to t modulo m. In this paper, we derive the generating functions of two variations of four combinations of the crank function. By considering the combinations of cranks of partitions modulo 12 and 16, we establish the generating functions of cranks:
where \(m=12,16\), and \(0\le t \le m/2\).
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References
Andrews, G.E., Garvan, F.G.: Dyson’s crank of a partition. Bull. Am. Math. Soc. 18(2), 167–171 (1988)
Atkin, A.O.L., Swinnerton-Dyer, P.: Some properties of partitions. Proc. Lond. Math. Soc. 3(4), 84–106 (1954)
Aygin, Z.S., Chan, S.H.: Combinations of ranks and cranks of partitions moduli 6, 9 and 12 and their comparison with the partition function. Ann. Comb. 23(3–4), 489–509 (2019)
Berndt, B.C.: Ramanujan’s Notebooks Part III. Springer, New York (1991)
Chan, S.H., Hong, N., Jerry, Lovejoy, J.: A mock theta function identity related to the partition rank modulo 3 and 9. Int. J. Number Theory 17(2), 311–327 (2021)
Chan, S.H., Mao, R.: The rank and crank of partitions modulo 3. Int. J. Number Theory 12(4), 1027–1053 (2016)
Dyson, F.J.: Some guesses in the theory of partitions. Eureka 8, 10–15 (1944)
Ekin, A.B.: Some properties of partitions in terms of crank. Trans. Am. Math. Soc. 352(5), 2145–2156 (2000)
Garvan, F.G.: New combinatorial interpretations of Ramanujan’s partition congruences mod 5, 7 and 11. Trans. Am. Math. Soc. 305(1), 47–77 (1988)
Garvan, F.G.: The crank of partitions mod 8, 9 and 10. Trans. Am. Math. Soc. 322(1), 79–94 (1990)
Garvan, F.G.: Transformation properties for Dyson’s rank function. Trans. Am. Math. Soc. 371(1), 199–248 (2019)
Hickerson, D., Mortenson, E.: Dyson’s ranks and Appell-Lerch sums. Math. Ann. 367(1–2), 373–395 (2017)
Kang, S.-Y.: Mock Jacobi forms in basic hypergeometric series. Compos. Math. 145(3), 553–565 (2009)
Lewis, R.: Relations between the rank and the crank modulo 9. J. Lond. Math. Soc. 45(2), 222–231 (1992)
Mao, R.: Ranks of partitions modulo 10. J. Number Theory 133(11), 3678–3702 (2013)
Mortenson, E.T.: On ranks and cranks of partitions modulo 4 and 8. J. Comb. Theory Ser. A 161, 51–80 (2019)
Ramanujan, S.: Some properties of \(p(n)\), the number of partitions of \(n\). Proc. Camb. Philos. Soc. XIX, 207–210 (1919)
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This work was supported by the National Natural Science Foundation of China (No. 12201177), the Natural Science Foundation of Hebei Province (No. A2021205018), the Science and Technology Research Project of Colleges and Universities of Hebei Province (No. BJK2023092), the Doctor Foundation of Hebei Normal University (No. L2021B02), the Program for Foreign Experts of Hebei Province, and the Program for 100 Foreign Experts Plan of Hebei Province.
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Du, J.Q.D. On cranks of partitions modulo 12 and 16. Ramanujan J 62, 863–883 (2023). https://doi.org/10.1007/s11139-023-00718-0
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DOI: https://doi.org/10.1007/s11139-023-00718-0