Results 1 to 10 of about 200 (42)

Extensions of the natural approach to refinements and generalizations of some trigonometric inequalities. [PDF]

open access: yesAdv Differ Equ, 2018
In this paper we propose a new method for sharpening and refinements of some trigonometric inequalities.
Malešević B   +3 more
europepmc   +2 more sources

The natural algorithmic approach of mixed trigonometric-polynomial problems. [PDF]

open access: yesJ Inequal Appl, 2017
The aim of this paper is to present a new algorithm for proving mixed trigonometric-polynomial inequalities by reducing to polynomial inequalities. Finally, we show the great applicability of this algorithm and as examples, we use it to analyze some new ...
Lutovac T, Malešević B, Mortici C.
europepmc   +5 more sources

On the generalized Becker-Stark type inequalities

open access: yesActa Universitatis Sapientiae: Mathematica, 2021
In this paper, we establish several generalized Becker-Stark type inequalities for the tangent function. We present unified proofs of many inequalities in the existing literature. Graphical illustrations of some obtained results are also presented.
Bagul Yogesh J.   +3 more
doaj   +1 more source

On logarithm of circular and hyperbolic functions and bounds for exp(±x2)

open access: yesActa Universitatis Sapientiae: Mathematica, 2022
We show that certain known or new inequalities for the logarithm of circular hyperbolic functions imply bounds for exp(±x2) proved in [1].
Sándor József
doaj   +1 more source

Refinements of Some Classical Inequalities Involving Sinc and Hyperbolic Sinc Functions

open access: yesAnnales Mathematicae Silesianae, 2023
Several bounds of trigonometric-exponential and hyperbolic-exponential type for sinc and hyperbolic sinc functions are presented. In an attempt to generalize the results, some known inequalities are sharpened and extended.
Bagul Yogesh J.   +3 more
doaj   +1 more source

Inequalities for the generalized trigonometric and hyperbolic functions

open access: yesOpen Mathematics, 2020
In this paper, the authors present some inequalities of the generalized trigonometric and hyperbolic functions which occur in the solutions of some linear differential equations and physics.
Ma Xiaoyan   +3 more
doaj   +1 more source

Some Inequalities for Generalized Hyperbolic Functions

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
In this paper, we establish several inequalities involving certain generalizations of the hyperbolic functions. The established results serve as generalizations of some known results in the literature.
Nantomah Kwara, Prempeh Edward
doaj   +1 more source

Sharpness of Wilker and Huygens type inequalities [PDF]

open access: yes, 2012
We present an elementary proof of Wilker's inequality involving trigonometric functions, and establish sharp Wilker and Huygens type inequalities.
Chen, CP, Cheung, WS
core   +1 more source

Geometric convexity of the generalized sine and the generalized hyperbolic sine [PDF]

open access: yes, 2013
In the paper, the authors prove that the generalized sine function $\sin_{p,q}(x)$ and the generalized hyperbolic sine function $\sinh_{p,q}(x)$ are geometrically concave and geometrically convex, respectively.
Jiang, Wei-Dong, Qi, Feng
core   +1 more source

Monotonicity results and bounds for the inverse hyperbolic sine [PDF]

open access: yes, 2009
In this note, we present monotonicity results of a function involving to the inverse hyperbolic sine.
B-N Guo   +14 more
core   +2 more sources

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