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Modeling a Tumor Growth with Piecewise Constant Arguments [PDF]

open access: yesDiscrete Dynamics in Nature and Society, 2013
This study is based on an early brain tumor growth that is modeled as a hybrid system such as (A): , where the parameters , and denote positive numbers, and are negative numbers and is the integer part of .
F. Bozkurt
doaj   +4 more sources

Advanced impulsive differential equations with piecewise constant arguments

open access: yesMathematical Modelling and Analysis, 2010
We prove the existence and uniqueness of the solutions of a class of first order nonhomogeneous advanced impulsive differential equations with piecewise constant arguments.
Hüseyin Bereketoglu   +2 more
doaj   +2 more sources

Stability Analysis of Partial Differential Equations with Piecewise Constant Arguments

open access: yesAsia Pacific Journal of Mathematics, 2018
Summary: In this paper, the analytical stability of a partial differential equation with piecewise constant arguments is considered. By using the theory of separation of variables in matrix form and the Fourier method, the sufficient conditions under which the analytic solution is asymptotically stable are achieved.
Qi Wang, Ziting Liu
doaj   +3 more sources

A population model of two-strains tumors with piecewise constant arguments

open access: yesKuwait Journal of Science, 2015
In this study, the population growth of the brain tumor GBM, is constructed such as( )( ( ) ( [ ] )) ( ) ( [ ] ) ( ) ( [ ] )( )( ( ) ( [ ] )) ( [ ] ) ( ) [ ]1 1 1 2 1 12 2 1 2 1 2d = ( ) rx t R x t x t x t y t d x t x tdd =r y t R y t y t x t y t d y( ) (
FATMA BOZKURT, İLHAN OZTURK
doaj   +3 more sources

Chaos in a Three-Dimensional Cancer Model with Piecewise Constant Arguments

open access: yesCumhuriyet Science Journal, 2023
In this study, we analyze a cancer model which includes the interactions among tumor cells, healthy host cells and effector immune cells. The model with continuous case has been studied in the literature and it has been shown that it exhibits chaotic ...
Senol Kartal
doaj   +1 more source

Linear Multistep Method for Advanced IDEs with Piecewise Constant Arguments

open access: yesJournal of Mathematics, 2022
In this article, based on the linear multistep method, we combined the simplified reproducing kernel method (SRKM) with the optimization method to solve advanced IDEs with piecewise constant arguments.
Liangcai Mei, Boying Wu, Yingzhen Lin
doaj   +1 more source

The Dynamics of a Discrete Fractional-Order Logistic Growth Model with Infectious Disease

open access: yesContemporary Mathematics and Applications (ConMathA), 2021
In this paper, we study the dynamics of a discrete fractional-order logistic growth model with infectious disease. We obtain the discrete model by applying the piecewise constant arguments to the fractional-order model.
Hasan S Panigoro, Emli Rahmi
doaj   +1 more source

Oscillation of nonlinear impulsive differential equations with piecewise constant arguments

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
Existence and uniqueness of the solutions of a class of first order nonlinear impulsive differential equation with piecewise constant arguments is studied. Moreover, sufficient conditions for the oscillation of the solutions are obtained.
Fatma Karakoc   +2 more
doaj   +1 more source

Asymptotically almost periodic solutions for certain differential equations with piecewise constant arguments

open access: yesAdvances in Difference Equations, 2020
It is well known that differential equations with piecewise constant arguments is a class of functional differential equations, which has fascinated many scholars in recent years.
Zonghong Feng, Yong Wang, Xin Ma
doaj   +1 more source

Stability analysis of a population model with piecewise constant arguments

open access: yesNonlinear Analysis: Real World Applications, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ozturk, I., Bozkurt, F.
openaire   +5 more sources

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