Results 31 to 40 of about 193,949 (265)

A Note on Periodic Solutions for Delay-Differential Systems [PDF]

Proceedings of the American Mathematical Society, 1974
Let f ( t , x , y
Gustafson, G. B., Schmitt, K.
openaire   +3 more sources

Equivalent systems for differential equations with polynomially distributed delay

Mathematical and Computer Modelling of Dynamical Systems
We consider delay differential equations with a polynomially distributed delay. We derive an equivalent system of delay differential equations, which includes just two discrete delays.
Roland Pulch
doaj   +1 more source

Stability analyses of deterministic and stochastic SEIRI epidemic models with nonlinear incidence rates and distributed delay

Nonlinear Analysis, 2017
In this paper, deterministic and stochastic SEIRI epidemic models featuring a distributed latent period and general, unspecified nonlinear incidence and growth rates for the susceptible class are proposed and investigated from a stability viewpoint.
Hong Zhang, Juan Xia, Paul Georgescu
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Asymptotically Diagonal Delay Differential Systems

Journal of Mathematical Analysis and Applications, 1996
The paper deals with the equation \[ x'(t)=(\tilde A+A(t))x(t)+(\tilde B+B(t))x(t-\tau), \] where \(\tau\) is a positive constant. Here \smallskip \((H_1)\) \(\tilde A,\tilde B\) are constant diagonal matrices \(\tilde A=\text{ diag }\big\{ \tilde a_1,\tilde a_2,\ldots,\tilde a_n\big\},\) \(\tilde B=\text{ diag }\big\{ \tilde b_1,\tilde b_2,\ldots ...
Arino, O., Győri, I., Pituk, M.
openaire   +2 more sources

Features of Oscillations in Adiabatic Oscillators with Delay

Моделирование и анализ информационных систем, 2013
In this paper, we describe the features of oscillations in adiabatic oscillators when the delay is introduced into the equation. We give a short description of the method of asymptotic integration of one class of linear delay differential systems in the ...
P. N. Nesterov, E. N. Agafonchikov
doaj   +3 more sources

Existence and Ulam-Type Stability for Fractional Multi-Delay Differential Systems

Fractal and Fractional
Fractional multi-delay differential systems, as an important mathematical model, can effectively describe viscoelastic materials and non-local delay responses in ecosystem population dynamics.
Xing Zhang, Mengmeng Li
doaj   +1 more source

Periodic Averaging Principle for Neutral Stochastic Delay Differential Equations with Impulses

Complexity, 2020
In this paper, we study the periodic averaging principle for neutral stochastic delay differential equations with impulses under non-Lipschitz condition.
Peiguang Wang, Yan Xu
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Boundary Value Problems for Delay Differential Systems [PDF]

Advances in Difference Equations, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Khusainov D, Diblík J, Boichuk A, Růžičková M   +3 more
openaire   +4 more sources

Prevalence of 21 Physician‐Defined Severe Toxicities Following Childhood Acute Lymphoblastic Leukemia Treatment: Australian Retrospective Cohort Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Acute lymphoblastic leukemia (ALL) is the most common pediatric cancer, with an overall survival now surpassing 90% in developed countries. However, treatments are not without adverse effects. In this study, we apply the severe toxicity‐free survival (STFS) framework to determine the prevalence of 21 physician‐defined severe ...
Lane Collier, Brittany Grantham, Camilla Grud Nielsen, Louise Lundgren, Liv Andrés‐Jensen, Kjeld Schmiegelow, Chris Selman, Gareth Ball, Elyse Passmore, David A. Elliott, Rachel Conyers   +10 more
wiley   +1 more source

On the Fundamental Analyses of Solutions to Nonlinear Integro-Differential Equations of the Second Order

Mathematics, 2022
In this article, a scalar nonlinear integro-differential equation of second order and a non-linear system of integro-differential equations with infinite delays are considered.
Cemil Tunç, Osman Tunç
doaj   +1 more source