On the bifurcations in a quadrotor unmanned aerial vehicle dynamical system using normal form theory

F Li, M Marwan, K Karawanich - Nonlinear Dynamics, 2024 - Springer
Abstract A Quadrotor Unmanned Aerial Vehicle (QUAV) is type of a drone that consist of four
rotors whose dynamical aspect is of high interest because of the reason that negligible glitch …

[HTML][HTML] The novel characteristics for training Ridge Polynomial neural network based on Lagrange multiplier

F Deng, S Shen, J He, W Yue, K Qian, X Miao… - Alexandria Engineering …, 2023 - Elsevier
In this paper, the Lagrange multiplier is presented to train the Ridge Polynomial neural
network, for improving the convergence rate and avoiding the ill-conditioned problem …

Bifurcation dynamical analysis of an epidemic-like SIR propagation model with Logistic growth

S Shen, X Ma, L Zhu - The European Physical Journal Plus, 2023 - Springer
At a time when rumours are easy to spread and their harmful effects are well known, it is
necessary to study their propagation patterns to support decision-making. Based on …

Cusp bifurcations: numerical detection via two-parameter continuation and computer-assisted proofs of existence

JP Lessard, A Pugliese - arXiv preprint arXiv:2404.00535, 2024 - arxiv.org
This paper introduces a novel computer-assisted method for detecting and constructively
proving the existence of cusp bifurcations in differential equations. The approach begins …

[PDF][PDF] On the Analytical Approach of Codimension-Three Degenerate Bogdanov-Takens (BT) Bifurcation in Satellite Dynamical System

M Marwan, MZ Abidin - … of Nonlinear Modeling and Analysis http …, 2023 - doc.global-sci.org
In this paper, we have conducted parametric analysis on the dynamics of satellite complex
system using bifurcation theory. At first, five equilibrium points E0, 1, 2, 3, 4 are symbolically …

Nonlinear dynamics in a fear‐driven predator–prey system: Bistability, bifurcations, hydra effect, and optimal harvesting

AK Umrao, S Lamba, PK Srivastava - Mathematical Methods in the … - Wiley Online Library
The impact of predator‐driven fear on ecosystems is significant and can encompass both
trophic (direct) and nontrophic (indirect) effects. Previous studies have shown that …

Industrial coal utilisation efficiency prediction based on Markov Chain Model

HF Zhang, YX Yang - International Journal of Global …, 2023 - inderscienceonline.com
In order to solve the problems of high error interval band width, low-prediction accuracy and
long prediction time in traditional methods, an industrial coal utilisation efficiency prediction …

Bifurkasi Pada Model Penyebaran Penyakit MERS-CoV di Dua Wilayah dengan Populasi Konstan

L Owen - Jambura Journal of Mathematics, 2022 - ejurnal.ung.ac.id
Abstract Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is caused by a novel
coronavirus and it can be a human-to-human transmission disease. World Health …

[引用][C] Codimension-1, 2 Bifurcation Analysis of Glucose Model with Obesity Effect

MA Abd Rabo, GM Mahmoud, S Aly… - International Journal …, 2024 - World Scientific
This work focuses on studying high-codimensional bifurcations in the glucose model with
obesity's effect. We examine the related dynamical behaviors, taking into account the risk …