Results 31 to 40 of about 54,362 (337)

A new Cosine-Weibull model: Distributional properties with applications to basketball and medical sectors

open access: yesAlexandria Engineering Journal, 2023
The two-parameter classical Weibull distribution is commonly implemented to cater for the product’s reliability, model the failure rates, analyze lifetime phenomena, etc. In this work, we study a novel version of the Weibull model for analyzing real-life
Xueyu Wu   +6 more
doaj   +1 more source

RELATIONS BETWEEN DISTRIBUTION COSINE FUNCTIONS AND ALMOST-DISTRIBUTION COSINE FUNCTIONS [PDF]

open access: yesTaiwanese Journal of Mathematics, 2007
In this paper, we give connections between distribution cosine functions (defined in [10]) and almost-distribution cosine functions (introduced in [13]). We prove several equalities involving trigonometric convolution products and distribution cosine functions as well as some relations between distribution cosine functions and ultradistribution ...
Kostić, Marko, Miana, Pedro J.
openaire   +4 more sources

A series expansion of a logarithmic expression and a decreasing property of the ratio of two logarithmic expressions containing cosine

open access: yesOpen Mathematics, 2023
In this study, by virtue of a derivative formula for the ratio of two differentiable functions and with aid of a monotonicity rule, the authors expand a logarithmic expression involving the cosine function into the Maclaurin power series in terms of ...
Li Yan-Fang, Qi Feng
doaj   +1 more source

Existence and controllability results for damped second order impulsive functional differential systems with state-dependent delay [PDF]

open access: yesOpuscula Mathematica, 2014
In this paper, we investigate the existence and controllability of mild solutions for a damped second order impulsive functional differential equation with state-dependent delay in Banach spaces.
M. Mallika Arjunan, N. Y. Nadaf
doaj   +1 more source

A Weighted Cosine-G Family of Distributions: Properties and Illustration Using Time-to-Event Data

open access: yesAxioms, 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
doaj   +1 more source

Extended Wang sum and associated products.

open access: yesPLoS ONE, 2022
The Wang sum involving the exponential sums of Lerch's Zeta functions is extended to the finite sum of the Huwitz-Lerch Zeta function to derive sums and products involving cosine and tangent trigonometric functions.
Robert Reynolds, Allan Stauffer
doaj   +1 more source

Almost-distribution cosine functions and integrated cosine functions [PDF]

open access: yesStudia Mathematica, 2005
Operator valued cosine functions were introduced in the 1950s to solve well-posed abstract second order Cauchy problems. Later, in analogy to operator semigroup theory, the strong continuity conditions were weakened to be able to treat also ill-posed problems.
openaire   +1 more source

Digital shaping methods for nuclear pulse signal based on cosine function

open access: yesHe jishu, 2023
BackgroundCosine function shaping (or cos shaping) is used to digitally shape nuclear pulse signals, as the shaping method is simple and has high operability and flexibility.PurposeThis study aims to explore different cosine shaping methods of nuclear ...
WEI Yong   +3 more
doaj   +1 more source

On the relationship between the integrated cosine function and the operator Bessel function

open access: yes, 2020
yesBSUIn this paper, formulas are derived relating the built-in function to the solution of the cosine Operator Yk (t) of the Cauchy ...
Glushak, A. V.
core   +2 more sources

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