Results 241 to 250 of about 73,924 (320)

Dual Variational Problems and Action Principles for Chen–Lee and Hopf–Langford Systems

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT We describe the construction of dual variational principles and action functionals for nonlinear dynamical systems using a methodology based on the dual Lagrange multiplier formalism and a convex optimization approach, to derive families of dual actions that correspond to the given nonlinear ordinary differential system.
A. Ghose‐Choudhury, Partha Guha
wiley   +1 more source

HIV/AIDS compartmental model analysis with drug resistance treatment, vertical transmission, and optimal control theory. [PDF]

Sci Rep
Peter OJ, Teklu SW, Balogun GB, Bolarin G, Asfaw MD.   +4 more
europepmc   +1 more source

Bifurcation diagrams and the correspo nding LLE of the dynamic system (16) for when .

Abudureheman Kadeer (21540123), Xiaobin Wang (71993), Huanying He (21540126), Lei Dai (261659)   +3 more
openalex   +1 more source

Behavioral Cobweb Dynamics With Anticipatory Inventory and Ulam Stability: An Integro‐Differential Approach

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This paper proposes a novel extension of the classical cobweb price model by incorporating behavioral inventory responses through an anticipatory mini‐storage mechanism. In many real‐world commodity markets, persistent price oscillations occur even when classical stability conditions are theoretically satisfied, an inconsistency traditional ...
M. Anokye, A. L. Sackitey, Agnes Adom‐Konadu, Samuel E. Assabil, Luca Guerrini, M. F. Ofori, Massimiliano Ferrara   +6 more
wiley   +1 more source

Bifurcation diagram for the model with chemotherapy at the dimensionless model parameters in Table 1.

Abdelhamid Ajbar (21656175), Rubayyi T. Alqahtani (21656178), Khalid Alhumaizi (21656181)   +2 more
openalex   +1 more source

Hybrid Reaction–Diffusion Epidemic Models: Dynamics and Emergence of Oscillations

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we construct a hybrid epidemic mathematical model based on a reaction–diffusion system of the SIR (susceptible‐infected‐recovered) type. This model integrates the impact of random factors on the transmission rate of infectious diseases, represented by a probabilistic process acting at discrete time steps.
Asmae Tajani, Cristiana J. Silva, Guillaume Cantin   +2 more
wiley   +1 more source

Analysis of a Mathematical Model of Marital Satisfaction

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A large number of marriages end in divorce. In this paper, we present a model for the emotional state of a couple based on bilinear ordinary differential equations. We study the effect of changes of each individual's self‐emotional state on the couple's state.
Benito Chen‐Charpentier, C. E. Garza‐Hume, M. C. Jorge   +2 more
wiley   +1 more source

Dynamic Behaviour of Two-Layered Beam Subjected to Mechanical Load in Thermal Environment. [PDF]

Materials (Basel)
Doneva S, Warminski J, Manoach E.
europepmc   +1 more source

Comparison of Signal‐ and Volume‐Based Ventilation‐Weighted Assessment Using 3D FLORET UTE MRI in Patients With Various Pulmonary Disease

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose 3D free‐breathing, proton, contrast‐agent‐free MR methods are increasingly used for pulmonary ventilation‐weighted measurements. The methods are split between: (1) signal‐based, which rely on lung parenchyma signal changes during respiration, and (2) volume‐based that utilize the Jacobian determinant of deformation fields from the ...
Filip Klimeš, Joseph W. Plummer, Andreas Voskrebenzev, Marcel Gutberlet, Marius M. Klein, Matthew M. Willmering, Alexander M. Matheson, Abdullah S. Bdaiwi, Frank Wacker, Jason C. Woods, Zackary I. Cleveland, Laura L. Walkup, Jens Vogel‐Claussen   +12 more
wiley   +1 more source

Decoding how higher-order network interactions shape contagion dynamics. [PDF]

J Math Biol
Kiss IZ, Bick C, Simon PL.
europepmc   +1 more source