Abstract
We show some new Wolstenholme type q-congruences for some classes of multiple q-harmonic sums of arbitrary depth with strings of indices composed of ones, twos, and threes. Most of these results are q-extensions of the corresponding congruences for ordinary multiple harmonic sums obtained by the authors in a previous paper. We also establish duality congruences for multiple q-harmonic non-strict sums and a kind of duality for multiple q-harmonic strict sums. Finally, we pose a conjecture concerning two kinds of cyclic sums of multiple q-harmonic sums.
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Ando, M.: A combinatorial proof of an identity for the divisor generating function. Electron. J. Comb. 20, P2.13 (2013)
Andrews, G.E.: \(q\)-analogs of the binomial coefficient congruences of Babbage, Wolstenholme and Glaisher. Discret. Math. 204, 15–25 (1999)
Bradley, D.: Duality for finite multiple harmonic \(q\)-series. Discret. Math. 300, 44–56 (2005)
Carlitz, L.: A degenerate Staudt-Clausen theorem. Arch. Math. 7, 28–33 (1956)
Dilcher, K.: Some \(q\)-series identities related to divisor functions. Discret. Math. 145, 83–93 (1995)
Dilcher, K.: Determinant expressions for \(q\)-harmonic congruences and degenerate Bernoulli numbers. Electron. J. Comb. 15, R63 (2008)
Dilcher, K., Pilehrood, K.H., Pilehrood, T.H.: On \(q\)-analogues of double Euler sums. J. Math. Anal. Appl. 410, 979–988 (2014)
Fu, A.M., Lascoux, A.: \(q\)-Identities from Lagrange and Newton interpolation. Discret. Math. 31, 527–531 (2003)
Fu, A.M., Lascoux, A.: \(q\)-Identities related to overpartitions and divisor functions. Electron. J. Comb. 12, R38 (2005)
Glaisher, J.W.L.: On the residues of the sums of the inverse powers of numbers in arithmetical progression. Quart. J. Math. 32, 271–288 (1900)
Guo V.J.W.: Some congruences related to the \(q\)-Fermat quotients. Int. J. Number Theory 11, 1049–1060 (2015)
Guo, V.J.W., Zeng, J.: Basic and bibasic identities related to divisor functions, J. Math. Anal. Appl. 431, 1197–1209 (2015)
Guo, V.J.W., Zhang, C.: Some further \(q\)-series identities related to divisor functions. Ramanujan J. 25, 295–306 (2011)
Hernandez, V.: Solution IV of problem 10490. Am. Math. Mon. 106, 589–590 (1999)
Hoffman, M.E.: Quasi-symmetric functions and mod \(p\) multiple harmonic sums. Kyushu J. Math. 69(2), 345–366 (2015)
Howard, F.T.: Explicit formulas for degenerate Bernoulli numbers. Discret. Math. 162, 175–185 (1996)
Ismail, M.E.H., Stanton, D.: Some combinatorial and analytical identities. Ann. Comb. 16, 755–771 (2012)
Lehmer, E.: On congruences involving Bernoulli numbers and the quotients of Fermat and Wilson. Ann. Math. (2nd Ser) 39, 350–360 (1938)
Mansour, T., Shattuck, M., Song, C.: A \(q\)-analog of a general rational sum identity. Afr. Mat. 24, 297–303 (2013)
Pilehrood, Kh.H., Pilehrood, T.H.: On \(q\)-analogues of two-one formulas for multiple harmonic sums and multiple zeta star values. Monatsh. Math. 176, 275–291 (2015)
Pilehrood, Kh.H., Pilehrood, T.H., Tauraso, R.: New properties of multiple harmonic sums modulo \(p\) and \(p\)-analogues of Leshchiner’s series. Trans. Am. Math. Soc. 366(6), 3131–3159 (2014)
Pilehrood, Kh.H., Pilehrood, T.H., Zhao, J.: On \(q\)-analogs of some families of multiple harmonic sum and multiple zeta star value identities. Commun. Number Theory. Phys. (2016). arXiv:1307.7985v3
Prodinger, H.: A \(q\)-analogue of a formula of Hernandez obtained by inverting a result of Dilcher. Australas. J. Comb. 21, 271–274 (2000)
Prodinger, H.: Some applications of the \(q\)-Rice formula. Random Struct. Algorithm 19, 552–557 (2001)
Prodinger, H.: \(q\)-Identities of Fu and Lascoux proved by the \(q\)-Rice formula. Quaest. Math. 27, 391–395 (2004)
Shi, L.-L., Pan, H.: A \(q\)-analogue of Wolstenholme’s harmonic series congruence. Am. Math. Mon. 114, 529–531 (2007)
Tauraso, R.: Some \(q\)-analogs of congruences for central binomial sums. Colloq. Math. 133, 133–143 (2013)
Uchimura, K.: An identity for the divisor generating function arising from sorting theory. J. Comb. Theory Ser. A 31, 131–135 (1981)
Van Hamme, L.: Advanced problem 6407. Am. Math. Mon. 489, 703–704 (1982)
Wolstenholme, J.: On certain properties of prime numbers. Quart. J. Math. Oxford Ser. 5, 35–39 (1862)
Xu, A.: On a general \(q\)-identity. Electron. J. Comb. 21, P2.28 (2014)
Zeng, J.: On some \(q\)-identities related to divisor functions. Adv. Appl. Math. 34, 313–315 (2005)
Zhang, Z., Yang, J.: On sums of products of the degenerate Bernoulli numbers. Integral Transforms Spec. Funct. 20, 751–755 (2009)
Zhao, J.: Wolstenholme type theorem for multiple harmonic sums. Int. J. Number Theory 4, 73–106 (2008)
Zhao, J.: On q-analog of Wolstenholme type congruences for multiple harmonic sums. Integers 13, A23 (2013)
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Kh. Hessami Pilehrood and T. Hessami Pilehrood acknowledge the support from the Fields Institute Research Immersion Fellowships.
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Hessami Pilehrood, K., Pilehrood, T.H. & Tauraso, R. Some q-congruences for homogeneous and quasi-homogeneous multiple q-harmonic sums. Ramanujan J 43, 113–139 (2017). https://doi.org/10.1007/s11139-016-9879-9
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DOI: https://doi.org/10.1007/s11139-016-9879-9
Keywords
- Multiple q-harmonic sum
- q-Binomial identity
- Degenerate Bernoulli numbers
- q-Congruence
- Duality relations