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The Gompertz Function And Its Applications In Management [PDF]

open access: yesFoundations of Management, 2015
In the present paper, we investigate the Gompertz function, which is commonly used, mostly as diffusion model, in economics and management. Our approach is based on indicating in a given time series, presumably with a Gompertz trend, some characteristic ...
Rządkowski Grzegorz   +2 more
doaj   +2 more sources

The Beta-Gompertz Distribution

open access: yesRevista Colombiana de Estadística, 2014
In this paper, we introduce a new four-parameter generalized version of the Gompertz model which is called Beta-Gompertz (BG) distribution. It includes some well-known lifetime distributions such as Beta-exponential and generalized Gompertz distributions
ALI AKBAR JAFARI   +2 more
doaj   +3 more sources

A unifying theory of aging and mortality [PDF]

open access: yesScientific Reports
In this paper, we advance the network theory of aging and mortality by developing a causal mathematical model for the mortality rate. First, we show that in large networks, where health deficits accumulate at nodes representing health indicators, the ...
Valentin Flietner   +5 more
doaj   +2 more sources

New Modified Gompertz Probability Distribution With Flexible Hazard Functions

open access: yesJournal of Probability and Statistics
This paper introduces a new probability model called the modified Gompertz distribution from the base Gompertz distribution by combining its hazard function with first and second degree polynomial (linear and quadratic) functions.
Endalkachew Abebe Debelu   +1 more
doaj   +2 more sources

Population modeling of tumor growth curves and the reduced Gompertz model improve prediction of the age of experimental tumors

open access: yesPLoS Computational Biology, 2020
Tumor growth curves are classically modeled by means of ordinary differential equations. In analyzing the Gompertz model several studies have reported a striking correlation between the two parameters of the model, which could be used to reduce the ...
Cristina Vaghi   +2 more
exaly   +2 more sources

From networked SIS model to the Gompertz function [PDF]

open access: yesApplied Mathematics and Computation, 2022
The Gompertz function is one of the most widely used models in the description of growth processes in many different fields. We obtain a networked version of the Gompertz function as a worst-case scenario for the exact solution to the SIS model on networks. This function is shown to be asymptotically equivalent to the classical scalar Gompertz function
Estrada, Ernesto, Bartesaghi, Paolo
openaire   +4 more sources

Stability conditions of limit cycle for Gompertz Autoregressive model

open access: yesTikrit Journal of Pure Science, 2023
In this paper, we suggest Gompertz Autoregressive model by using the cumulative distribution function of Gompertz distribution and, the aim of this paper is studying and finding the stability conditions of a limit cycle for the Gompertz Autoregressive ...
Nezar E. Ali, Azher A. Mohammad
doaj   +1 more source

The Gompertz model revisited and modified using reaction networks: Mathematical analysis

open access: yesBiomath, 2021
In the present work we discuss the?usage of the framework of chemical reaction networks for the construction of dynamical models and their mathematical analysis.
Svetoslav Marinov Markov
doaj   +1 more source

Periodic functions related to the Gompertz difference equation

open access: yesMathematical Biosciences and Engineering, 2022
<abstract><p>We investigate periodicity of functions related to the Gompertz difference equation. In particular, we derive difference equations that must be satisfied to guarantee periodicity of the solution.</p></abstract>
Tom Cuchta, Nick Wintz
openaire   +4 more sources

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