Abstract
In this paper, we establish several inequalities for the the generalized linear distortion function λ(a,K) by using the monotonicity and convexity of certain combinations λ(a,K)
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M Abramowitz, I A Stegun (Eds.). Handbook of Mathematical Functions with Formulas, Graphs and Mathematical Tables, Dover, New York, 1965.
H Alzer, S L Qiu. Monotonicity theorems and inequalities for the complete elliptic integrals, J Comput Appl Math, 2004, 172: 289–312.
G D Anderson, S L Qiu, M K Vamanamurthy, M Vuorinen. Generalized elliptic integrals and modular equations, Pacific J Math, 2000, 192: 1–37.
G D Anderson, S L Qiu, M Vuorinen. Modular equations and distortion functions, Ramanujan J, 2009, 18: 147–169.
G D Anderson, M K Vamanamurthy, M Vuorinen. Distortion functions for plane quasiconformal mappings, Israel J Math, 1988, 62: 1–16.
G D Anderson, M K Vamanamurthy, M Vuorinen. Conformal Invariants, Inequalities, and Quasiconformal Maps, John Wiley & Sons, New York, 1997.
S András, Á Baricz. Bounds for complete elliptic integral of the first kind, Expo Math, 2010, 28: 357–364.
B C Berndt, S Bhargave, F G Garvan. Ramanujan’s theories of elliptic functions to alternative bases, Trans Amer Math Soc, 1995, 347: 4163–4244.
B N Guo, F Qi. Some bounds for the complete elliptic integrals of the first and second kinds, Math Inequal Appl, 2011, 14: 323–334.
C Q He. Distortion estimates of quasiconformal mappings, Sci Sinica Ser A, 1984, 27: 225–232.
O Lehto, K I Virtanen. Quasiconformal Mappings in the Plane, Springer-Verlag, New York-Heidelberg, 1973.
X Y Ma, S L Qiu. Properties of the generalized elliptic integrals, J Zhejiang Sci-Tech Univ, 2007, 24: 200–205.
S L Qiu, M K Vamanamurthy, M Vuorinen. Bounds for quasiconformal distortion functions, J Math Anal Appl, 1997, 205: 43–64.
S L Qiu, M Vuorinen. Duplication inequalities for the ratios of hypergeometric functions, Forum Math, 2000, 12: 109–133.
S L Qiu, M Vuorinen. Special functions in geometric function theory, In: Handbook of Complex Analysis: Geometric Function Theory, Vol. 2, Elsevier Sci B V, Amsterdam, 2005, 621-659.
E D Rainville. Special Functions, MacMillan, New York, 1960.
M K Vamanamurthy, M Vuorinen. Functions inequalities, Jacobi products, and quasiconformal maps, Illinois J Math, 1994, 38: 394–419.
M Vuorinen. Conformal Geometry and Quasiregular Mappings, Springer-Verlag, Berlin, 1988.
G D Wang, X H Zhang, Y M Chu. A Hölder mean inequality for the Hersch-Pfluger distortion function, Sci Sin Math, 2010, 40: 783–786.
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Supported by the National Natural Science Foundation of China (11071069, 11171307) and the Natural Science Foundation of Hunan Province (09JJ6003).
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Ma, Xy., Qiu, Sl., Zhong, Gh. et al. Some inequalities for the generalized linear distortion function. Appl. Math. J. Chin. Univ. 27, 87–93 (2012). https://doi.org/10.1007/s11766-012-2896-6
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DOI: https://doi.org/10.1007/s11766-012-2896-6