Here s(h,k) is the Dedekind sum, Δα is the forward difference operator, and L3/2 is given by L3/2(−y2)=−2πy21(2cos(2y)−ysin(2y)). Rademacher's conjecture. For all integers h,k,l such that 0≤h<k, gcd(h,k)=1, and l≥1, the limit limN→∞Ch,k,l(N) exists and equals
The conjecture was open for nearly four decades, but the paper presents overwhelming evidence that these limits do not exist: the sequences oscillate and attain arbitrarily large positive and negative values. Thus the conjecture is almost certainly false.
References
Primary source
Andrew V. Sills and Doron Zeilberger, “Rademacher's infinite partial fraction conjecture is (almost certainly) false”, arXiv:1110.4932 (2011).