| Title: | A Menon-type identity using Klee's function (English) | 
| Author: | Chandran, Arya | 
| Author: | Thomas, Neha Elizabeth | 
| Author: | Namboothiri, K. Vishnu | 
| Language: | English | 
| Journal: | Czechoslovak Mathematical Journal | 
| ISSN: | 0011-4642 (print) | 
| ISSN: | 1572-9141 (online) | 
| Volume: | 72 | 
| Issue: | 1 | 
| Year: | 2022 | 
| Pages: | 165-176 | 
| Summary lang: | English | 
| . | 
| Category: | math | 
| . | 
| Summary: | Menon's identity is a classical identity involving gcd sums and the Euler totient function $\phi $. A natural generalization of $\phi $ is the Klee's function $\Phi _s$. We derive a Menon-type identity using Klee's function and a generalization of the gcd function. This identity generalizes an identity given by Y. Li and D. Kim (2017). (English) | 
| Keyword: | Euler totient function | 
| Keyword: | generalized gcd | 
| Keyword: | Jordan totient function | 
| Keyword: | Klee's function | 
| MSC: | 11A07 | 
| MSC: | 11A25 | 
| MSC: | 20D60 | 
| MSC: | 20D99 | 
| idZBL: | Zbl 07511559 | 
| idMR: | MR4389112 | 
| DOI: | 10.21136/CMJ.2021.0370-20 | 
| . | 
| Date available: | 2022-03-25T08:29:01Z | 
| Last updated: | 2024-04-01 | 
| Stable URL: | http://hdl.handle.net/10338.dmlcz/149579 | 
| . | 
| Reference: | [1] Apostol, T. M.: Introduction to Analytic Number Theory.Undergraduate Texts in Mathematics. Springer, New York (1976). Zbl 0335.10001, MR 0434929, 10.1007/978-1-4757-5579-4 | 
| Reference: | [2] Cohen, E.: Some totient functions.Duke Math. J. 23 (1956), 515-522. Zbl 0073.02903, MR 0082499, 10.1215/S0012-7094-56-02348-1 | 
| Reference: | [3] Haukkanen, P.: Menon's identity with respect to a generalized divisibility relation.Aequationes Math. 70 (2005), 240-246. Zbl 1207.11011, MR 2192277, 10.1007/s00010-005-2805-7 | 
| Reference: | [4] Haukkanen, P., Tóth, L.: Menon-type identities again: A note on a paper by Li, Kim and Qiao.Publ. Math. 96 (2020), 487-502. Zbl 07254963, MR 4108053, 10.5486/PMD.2020.8786 | 
| Reference: | [5] Haukkanen, P., Wang, J.: A generalization of Menon's identity with respect to a set of polynomials.Port. Math. 53 (1996), 331-337. Zbl 0856.11006, MR 1414871 | 
| Reference: | [6] Jordan, C.: Traité des substitutions et des équations algébriques.Gauthier-Villars, Paris (1870), French \99999JFM99999 03.0042.02. MR 0091260 | 
| Reference: | [7] Menon, P. Kesava: On the sum $\sum (a-1,n),[(a,n)=1]$.J. Indian Math. Soc., New Ser. 29 (1965), 155-163. Zbl 0144.27706, MR 0190065 | 
| Reference: | [8] Klee, V. L.: A generalization of Euler's $\varphi$-function.Am. Math. Mon. 55 (1948), 358-359. Zbl 0030.29504, MR 0024917, 10.2307/2304963 | 
| Reference: | [9] Li, Y., Kim, D.: A Menon-type identity with many tuples of group of units in residually finite Dedekind domains.J. Number Theory 175 (2017), 42-50. Zbl 1407.11009, MR 3608177, 10.1016/j.jnt.2016.11.023 | 
| Reference: | [10] Miguel, C.: A Menon-type identity in residually finite Dedekind domains.J. Number Theory 164 (2016), 43-51. Zbl 1378.11014, MR 3474377, 10.1016/j.jnt.2015.12.018 | 
| Reference: | [11] Rao, K. Nageswara: On certain arithmetical sums.Theory of Arithmetic Functions Lecture Notes in Mathematics 251. Springer, Berlin (1972), 181-192. Zbl 0243.10008, MR 0337737, 10.1007/BFb0058793 | 
| Reference: | [12] Ramaiah, V. Sita: Arithmetical sums in regular convolutions.J. Reine Angew. Math. 303/304 (1978), 265-283. Zbl 0391.10007, MR 0514685, 10.1515/crll.1978.303-304.265 | 
| Reference: | [13] Sivaramakrishnan, R.: Classical Theory of Arithmetic Functions.Pure and Applied Mathematics 126. Marcel Dekker, New York (1989). Zbl 0657.10001, MR 0980259 | 
| Reference: | [14] Sury, B.: Some number-theoretic identities from group actions.Rend. Circ. Mat. Palermo (2) 58 (2009), 99-108. Zbl 1187.20015, MR 2504989, 10.1007/s12215-009-0010-6 | 
| Reference: | [15] Tărnăuceanu, M.: A generalization of the Euler's totient function.Asian-Eur. J. Math. 8 (2015), Artile ID 1550087, 13 pages. Zbl 1336.20029, MR 3424162, 10.1142/S1793557115500874 | 
| Reference: | [16] Tóth, L.: Menon's identity and arithmetical sums representing functions of several variables.Rend. Semin. Mat., Univ. Politec. Torino 69 (2011), 97-110. Zbl 1235.11011, MR 2884710 | 
| Reference: | [17] Tóth, L.: Menon-type identities concerning Dirichlet characters.Int. J. Number Theory 14 (2018), 1047-1054. Zbl 1421.11010, MR 3801082, 10.1142/S179304211850063X | 
| Reference: | [18] Tóth, L.: Short proof and generalization of a Menon-type identity by Li, Hu and Kim.Taiwanese J. Math. 23 (2019), 557-561. Zbl 1418.11012, MR 3952239, 10.11650/tjm/180904 | 
| Reference: | [19] Zhao, X.-P., Cao, Z.-F.: Another generalization of Menon's identity.Int. J. Number Theory 13 (2017), 2373-2379. Zbl 1392.11004, MR 3704366, 10.1142/S1793042117501299 | 
| . |