On the index of fractions with square-free denominators in arithmetic progressions
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- Alkan, E., Ledoan, A.H., Vâjâitu, M. et al. Ramanujan J (2008) 16: 131. doi:10.1007/s11139-007-9103-z
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We prove asymptotic formulas for the first and second moments of the index of fractions with square-free denominators of order Q streaming in a given arithmetic progression as Q→∞.