References
- [1] BERESNEVICH, V.-HAYNES, A.-VELANI, S.: Sums of reciprocals of (nα−γ) modulo 1 and multiplicative Diophantine approximation, preprint.
- [2] COSENTINO, S.-FLAMINIO, L.: Equidistribution for higher-rank abelian actions on Heisenberg nilmanifolds, J. Mod. Dyn. 9 (2015), 305-353.
- [3] HARDY, G. H.-LITTLEWOOD, J. E.: Some problems of Diophantine approximation (a series of cosecants), Bull. Calcutta Math. Soc. 20 (1930), 251-266.
- [4] HARDY, G. H-LITTLEWOOD, J. E.-P´OLYA, G.: Inequalities, Cambridge Mathematical Library (2nd edition), Cambridge University Press, Cambridge, 1952.
- [5] HARMAN, G.: Metric Number Theory, In: London Mathematical Society Monographs. New Series, Vol. 18. The Clarendon Press, Oxford University Press, New York, 1998.
- [6] HAYNES, A.: Equivalence classes of codimension one cut-and-project sets, Ergodic Theory Dyn. Syst. 36 (2016), no. 3, 816-831.
- [7] KHINCHIN, A.YA.: Continued Fractions, The University of Chicago Press, Chicago, III.-London, 1964.
- [8] ROCKETT, A.-SZ¨USZ, P.: Continued Fractions, World Scientific Publishing Co., Inc., River Edge, NJ, 1992.
- [9] SINAI, YA.G.-ULCGRAI, C.: Estimates from above of certain double trigonometric sums, J. Fixed Point Theory Appl. 6 (2009), no. 1, 93-113.