Supported by the Zhejiang Provincial Natural Science Foundation of China(LQ17A010010);the National Natural Science Foundation of China(11171307,11671360);the Natural Science Foundation of the Department of Education of Zhejiang Province(Y201328799)
Abstract. In this paper, we study the quotient of hypergeometric functions μα (r) in the theory of Ramanujan's generalized modular equation for α ∈(0, 1/2]. Several new inequalities are given for this and rela...
Supported by the National Natural Science Foundation of China(11171307)
In this paper, the authors show some monotonicity and concavity of the classical psi function, by which several known results are improved and some new asymptotically sharp estimates are obtained for this function. In...
supported by National Natural Science Foundation of China(Grant Nos.11371125,11171307 and 61374086);Natural Science Foundation of Zhejiang Province(Grant No.LY13A010004);Natural Science Foundation of Hunan Province(Grant No.12C0577);PhD Students Innovation Foundation of Hunan Province(Grant No.CX2012B153)
We study the quotient of hypergeometric functions in the theory of Ramanujan's generalized modular equation for a ∈ (0, 1/2], and find an infinite product for- mula for μ1/3(r) by use of the properties of μ*a...
supported by National Natural Science Foundation of China(Grant Nos.11371125,11171307 and 61374086);Natural Science Foundation of the Hunan Province(Grant No.14JJ2127);Natural Science Foundation of the Zhejiang Province(Grant No.LY13A010004)
we study the monotonicity of certain combinations of the Gaussian hypergeometric functions F(-1/2,1/2;1;1- xc) and F(-1/2- δ,1/2 + δ;1;1- xd) on(0,1) for given 0 < c 5d/6 < ∞ andδ∈(-1/2,1/2),and find the largest ...
Supported by the National Natural Science Foundation of China(61174076,61374086,11171307);the Natural Science Foundation of Zhejiang Province(LY13A010004)
In this paper, we find the greatest value p = log 2/(log Tr - log 2) = 1.53.- and the least value q -- 5/3 - 1.66.. such that the double inequality Mp(a,b) 〈 T(a,b) 〈 Mq(a,b) holds for all a, b 〉 0 with a #...
supported by the Natural Science Foundation of China(11071069 and 11171307);the Natural Science Foundation of the Department of Education of Zhejiang Province(Y201328799)
The authors prove some monotonicity properties of functions involving the generalized Agard distortion function ηg(a,t), and obtain some inequalities for ηk(a, t) and relative distortion functions.