[1] H. Iwaniec, Topics in classical automorphic forms, ser. Graduate Studies in Mathematics. American Mathematical Society, Providence, RI,  vol. 17 (1997). [Online]. Available: https://doi.org/10.1090/gsm/017.
[2] E. Hecke, “Theorie der Eisensteinschen Reihen höherer Stufe und ihre Anwendung auf Funktionentheorie und Arithmetik,” Abh. Math. Sem. Univ. Hamburg, vol. 5, no. 1, pp. 199–224 (1927). [Online]. Available: https://doi.org/10.1007/BF02952521
[3] P. Deligne, “La conjecture de Weil. I,” Inst. Hautes Études Sci. Publ. Math., no. 43, pp. 273–307 (1974). [Online]. Available: http://www.numdam.org/item?id=PMIHES_1974__43__273_0
[4] R. A. Rankin, “Sums of cusp form coefficients,” in Automorphic forms and analytic number theory (Montreal, PQ, 1989). Univ. Montréal, Montreal, QC, pp. 115–121 (1990).
[5] J. Wu, “Power sums of Hecke eigenvalues and application,” Acta Arith., vol. 137, no. 4, pp. 333–344 (2009). [Online]. Available: https://doi.org/10.4064/aa137-4-3
[6] R. A. Rankin, “Contributions to the theory of Ramanujan’s function τ (n) and similar arithmetical functions. I. The zeros of the function on the line Re(s) = 13/2. II. The order of the Fourier coefficients of integral modular forms,” Proc. Cambridge Philos. Soc., vol. 35, pp. 351–372 (1939).
[7] A. Selberg, “Bemerkungen über eine Dirichletsche Reihe, die mit der Theorie der Modulformen nahe verbunden ist,” Arch. Math. Naturvid., vol. 43, pp. 47–50 (1940).
[8] B. Huang, “On the Rankin-Selberg problem,” Math. Ann., vol. 381, no. 3-4, pp. 1217–1251 (2021). [Online]. Available: https://doi.org/10.1007/s00208-021-02186-7
[9] V. Blomer, “Sums of Hecke eigenvalues over values of quadratic polynomials,” Int. Math. Res. Not. IMRN, no. 16, p. Art. ID rnn059. 29 (2008). [Online]. Available: https://doi.org/10.1093/imrn/rnn059
[10] S. Banerjee and M. K. Pandey, “Signs of Fourier coefficients of cusp form at sum of two squares,” Proc. Indian Acad. Sci. Math. Sci., vol. 130, no. 1, pp. Paper No. 2, 9 (2020). [Online]. Available: https://doi.org/10.1007/s12044-019-0534-4
[11] R. Acharya, “A twist of the Gauss circle problem by holomorphic cusp forms,” Res. Number Theory, vol. 8, no. 1, pp. Paper No. 5, 14 (2022). [Online]. Available: https://doi.org/10.1007/s40993-021-00299-1
[12] P. B. Garrett and M. Harris, “Special values of triple product L-functions,” Amer. J. Math., vol. 115, no. 1, pp. 161–240 (1993). [Online]. Available: https://doi.org/10.2307/2374726
[13] L. Vaishya, “Oscillations of Fourier coefficients over the sparse set of integers,” Monatsh. Math., vol. 204, no. 3, pp. 601–623 (2024). [Online]. Available: https: //doi.org/10.1007/s00605-024-01989-5
[14] ——, “Average behaviour of hecke eigenvalues over certain polynomial,” (2023). [Online]. Available: arXiv:2308.12953
[15] G. Hua, “On the asymptotics of coefficients associated to l-fold product L-functions and its applications,” Ramanujan J., vol. 66, no. 2, pp. Paper No. 31, 20 (2025). [Online]. Available: https://doi.org/10.1007/s11139-024-01003-4.
[16] A. Sarkar and M. Shahvez Alam, “Average behaviour of Fourier coefficients of j-symmetric power L-functions over some polynomials,” Acta Math. Hungar., vol. 174, no. 1, pp. 75–93 (2024). [Online]. Available: https://doi.org/10.1007/s10474-024-01467-2
[17] P. Tiwari and N. K. Godara, “On the power moments of hybrid arithmetic functions associated with the Hecke eigenvalues,” Ramanujan J, vol. 66, no. 46 (2025). [Online]. Available: https://doi.org/10.1007/s11139-024-01019-w
[18] N. K. Godara and P. Tiwari, “On the general divisor problem of power moments of the coefficients attached to the dedekind zeta function over a sparse sequence,” Results Math, vol. 80, no. 125 (2025). [Online]. Available: https://doi.org/10.1007/s00025-025-02439-w
[19] Babita, M. Tripathi, and L. Vaishya, “Oscillations of Fourier coefficients of product of L-functions at integers in a sparse set,” Int. J. Number Theory, vol. 20, no. 7, pp. 1739–1753 (2024). [Online]. Available: https://doi.org/10.1142/S1793042124500854
[20] B. Ramakrishnan and L. Vaishya, “Figurate numbers, forms of mixed type, and their representation numbers,” Ramanujan J., vol. 64, no. 4, pp. 1261–1284 (2024). [Online]. Available: https://doi.org/10.1007/s11139-024-00868-9
[21] J. Newton and J. A. Thorne, “Symmetric power functoriality for holomorphic modular forms,” Publ. Math. Inst. Hautes Études Sci., vol. 134, pp. 1–116 (2021). [Online]. Available: https://doi.org/10.1007/s10240-021-00127-3.
[22] ——, “Symmetric power functoriality for holomorphic modular forms, II,” Publ. Math. Inst. Hautes Études Sci., vol. 134, pp. 117–152 (2021). [Online]. Available: https://doi.org/10.1007/s10240-021-00126-4
[23] M. K. Pandey and L. Vaishya, “Asymptotic of Fourier coefficients of Hecke eigenforms at integers represented by a binary quadratic form of a fixed discriminant,” Publicationes Mathematicae Debrecen, vol. 105 (2024).
[24] J. Bourgain, “Decoupling, exponential sums and the Riemann zeta function,” J. Amer. Math. Soc., vol. 30, no. 1, pp. 205–224 (2017). [Online]. Available: https://doi.org/10.1090/jams/860
[25] H. Liu, “On the asymptotic distribution of Fourier coefficients of cusp forms,” Bull. Braz. Math. Soc. (N.S.), vol. 54, no. 2, pp. Paper No. 21, 17 (2023). [Online]. Available: https://doi.org/10.1007/s00574-023-00335-x
[26] Y. Lin, R. Nunes, and Z. Qi, “Strong subconvexity for self-dual GL(3) L-functions,” Int. Math. Res. Not. IMRN, no. 13, pp. 11 453–11 470 (2023). [Online]. Available: https://doi.org/10.1093/imrn/rnac153
[27] A. Perelli, “General L-functions,” Ann. Mat. Pura Appl. (4), vol. 130, pp. 287–306 (1982). [Online]. Available: https://doi.org/10.1007/BF01761499
[28] K. Matsumoto, “The mean values and the universality of Rankin-Selberg L-functions,” in Number theory (Turku, 1999). de Gruyter, Berlin, pp. 201–221 (2001).
[29] Y. Jiang and G. Lü, “Sums of coefficients of L-functions and applications,” J. Number Theory, vol. 171, pp. 56–70 (2017). [Online]. Available: https://doi.org/10.1016/j.jnt.2016.07.005