Results 1 to 10 of about 13,102 (285)
A Weighted Cosine-G Family of Distributions: Properties and Illustration Using Time-to-Event Data
Axioms, 2023 Modeling and predicting time-to-event phenomena in engineering, sports, and medical sectors are very crucial. Numerous models have been proposed for modeling such types of data sets.
Omalsad Hamood Odhah +3 more
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Starlikness Associated with Cosine Hyperbolic Function
Mathematics, 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
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Cosine families and semigroups really differ [PDF]
Journal of Evolution Equations, 2013 Let \(X\) be a Banach space and \(\mathcal{L}(X)\) the space of all bounded linear operators on \(X\). This paper investigates the differences between the theories of two \(\mathcal{L}(X)\)-valued functions: the cosine familes and the semigroups of linear operators on \(X\).
Adam Bobrowski +2 more
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Weighted multimodal family of distributions with sine and cosine weight functions [PDF]
Heliyon, 2020 In this paper, the moment of various types of sine and cosine functions are derived for any random variable. For an arbitrary even probability density function, the sine and cosine moments are used to define new families of univariate multimodal ...
Ayman Alzaatreh +2 more
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A New Extended Cosine—G Distributions for Lifetime Studies
Mathematics, 2021 In this article, we introduce a new extended cosine family of distributions. Some important mathematical and statistical properties are studied, including asymptotic results, a quantile function, series representation of the cumulative distribution and ...
Mustapha Muhammad +6 more
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A new family of alpha power-G using cosine function with applications and regression modeling [PDF]
Scientific ReportsThis 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
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Regularity for Semilinear Neutral Hyperbolic Equations with Cosine Families
Mathematics, 2020 The purpose of this paper is to obtain the regularity for solutions of semilinear neutral hyperbolic equations with the nonlinear convolution. The principal operator is the infinitesimal generator of a cosine and sine families.
Seong-Ho Cho, Jin-Mun Jeong
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LOCAL C-COSINE FAMILIES AND N-TIMES INTEGRATED LOCAL COSINE FAMILIES
Taiwanese Journal of Mathematics, 2004 For the investigation of ill-posed first-order abstract Cauchy problems, the theory of \(C\)-semigroups and \(n\)-times integrated semigroups has been developed and intensively studied in the last 20 years. The main technical tool in these investigations was the exhausting use of vector-valued Laplace transforms theory.
S Piskarev
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A new class of cosine trigonometric lifetime distribution with applications
Alexandria Engineering JournalThis work investigates a new class of statistical models and presents a specific example from this class. We created a new family of distributions using trigonometric functions, known as the cosine pie-power odd-G family.
Pankaj Kumar +6 more
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Mild Solutions of Second-Order Semilinear Impulsive Differential Inclusions in Banach Spaces
Mathematics, 2022 In this paper, the existence of a mild solution to the Cauchy problem for impulsive semilinear second-order differential inclusion in a Banach space is investigated in the case when the nonlinear term also depends on the first derivative. This purpose is
Martina Pavlačková, Valentina Taddei
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