Results 11 to 20 of about 54,362 (337)

Starlikness Associated with Cosine Hyperbolic Function

open access: yesMathematics, 2020
The main contribution of this article is to define a family of starlike functions associated with a cosine hyperbolic function. We investigate convolution conditions, integral preserving properties, and coefficient sufficiency criteria for this family ...
Abdullah Alotaibi   +3 more
doaj   +4 more sources

A new family of alpha power-G using cosine function with applications and regression modeling [PDF]

open access: goldScientific Reports
This paper discusses a novel technique to creating distribution families by combining the transformation of alpha power and the cosine function. The proposed technique have been named the cosine alpha power-generated family.
Amani S. Alghamdi, Shatha F. ALoufi
doaj   +4 more sources

Dual-Channel Cosine Function Based ITD Estimation for Robust Speech Separation [PDF]

open access: yesSensors, 2017
In speech separation tasks, many separation methods have the limitation that the microphones are closely spaced, which means that these methods are unprevailing for phase wrap-around.
Xuliang Li   +3 more
doaj   +2 more sources

New Class of Cosine-Sum Windows

open access: yesIEEE Access, 2023
Window functions are required to achieve excellent frequency resolution, peak sidelobe ratio, and sidelobe decay. The cosine-sum window function satisfies these requirements.
Tomoya Yamaoka, Satoshi Kageme
doaj   +2 more sources

Similarity Measures of T-Spherical Fuzzy Sets Based on the Cosine Function and Their Applications in Pattern Recognition [PDF]

open access: goldIEEE Access, 2020
In this manuscript, nine similarity measures of T-spherical fuzzy set (TSFS) considering the membership degree, the hesitancy degree, the non-membership degree and the refusal degree are developed according to the cosine function.
Mei-Qin Wu, Ting-You Chen, Jian-Ping Fan
doaj   +2 more sources

A pseudorandom bit generator based on hyperbolic cosine function [PDF]

open access: yesITM Web of Conferences, 2022
In the literature, little attention is paid to devising and analyzing novel one dimensional chaotic mappings. In our previous efforts, we have tried fold, translation & scale on arctangent function & sigmoid function respectively, which brings good ...
Wu Qi
doaj   +2 more sources

Bounded Cosine Functions Close to Continuous Scalar Bounded Cosine Functions [PDF]

open access: yesIntegral Equations and Operator Theory, 2016
Let $(C(t))_{t \in R}$ be a cosine function in a unital Banach algebra. We show that if $sup_{t\in R}\Vert C(t)-cos(t)\Vert < 2$ for some continuous scalar bounded cosine function $(c(t))_{t\in \R},$ then the closed subalgebra generated by $(C(t))_{t\in ...
ESTERLE, Jean, J. Esterle
core   +4 more sources

Neutrosophic Refined Similarity Measure Based on Cosine Function [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
In this paper, the cosine similarity measure of neutrosophic refined (multi-) sets is proposed and its properties are studied. The concept of this cosine similarity measure of neutrosophic refined sets is the extension of improved cosine similarity ...
Said Broumi, Florentin Smarandache
doaj   +4 more sources

Similarity Measures of q-Rung Orthopair Fuzzy Sets Based on Cosine Function and Their Applications

open access: yesMathematics, 2019
In this article, we propose another form of ten similarity measures by considering the function of membership degree, non-membership degree, and indeterminacy membership degree between the q-ROFSs on the basis of the traditional cosine similarity ...
Ping Wang, Jie Wang, Guiwu Wei, Cun Wei
doaj   +3 more sources

Taylor’s series expansions for real powers of two functions containing squares of inverse cosine function, closed-form formula for specific partial Bell polynomials, and series representations for real powers of Pi

open access: yesDemonstratio Mathematica, 2022
In this article, by virtue of expansions of two finite products of finitely many square sums, with the aid of series expansions of composite functions of (hyperbolic) sine and cosine functions with inverse sine and cosine functions, and in the light of ...
Qi Feng
doaj   +2 more sources

Home - About - Disclaimer - Privacy