Analysis of stochastic bifurcations with phase portraits [PDF]
PLOS ONE, 2018 We propose a method to obtain phase portraits for stochastic systems. Starting from the Fokker-Planck equation, we separate the dynamics into a convective and a diffusive part. We show that stable and unstable fixed points of the convective field correspond to maxima and minima of the stationary probability distribution if the probability current ...
Marc Mendler +2 more
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Generic phase portrait analysis of finite-time singularities and generalized Teleparallel gravity [PDF]
, 2017 We analyze the four common types of finite-time singularity using a generic framework of the phase portrait geometric approach. This technique requires the Friedmann system to be written as a one-dimensional autonomous system.
W. El Hanafy, G. Nashed
semanticscholar +1 more source
Physics of brain dynamics: Fokker-Planck analysis reveals changes in EEG delta-theta interactions in anaesthesia [PDF]
, 2009 We use drift and diffusion coefficients to reveal interactions between different oscillatory processes underlying a complex signal and apply the method to EEG delta and theta frequencies in the brain.
A Bahraminasab +12 more
core +1 more source
Colored noise influence on the system evolution
, 2001 We present a picture of phase transitions of the system with colored multiplicative noise. Considering the noise amplitude as the power-law dependence of the stochastic variable $x^a$ we show the way to phase transitions disorder-order and order-disorder.
Kharchenko, D. O., Kokhan, S.
core +2 more sources
Frequency-Dependent Template Profiles for High Precision Pulsar Timing [PDF]
, 2018 Pulsar timing experiments require high fidelity template profiles in order to minimize the biases in pulse time-of-arrival (TOA) measurements and their uncertainties.
Pennucci, Timothy T.
core +2 more sources
Unfolding the Phase Space Structure of Noisy Time Series by means of Angular First-Return Maps
Discrete Dynamics in Nature and Society, 2015 A new approach which uses the joint probability matrix computation of noisy time series is proposed to construct a phase space portrait which reflects the orbit visitation frequency of the different regions of the phase space.
Javier Villa Briongos +3 more
doaj +1 more source
PRECISE PHASE PORTRAIT CONSTRUCTION FOR AN INVERTED PENDULUM USING CUBIC BEZIER CURVES
Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2020 A cubic Bezier curve formulation is used for generating phase portrait of an inverted pendulum system. Assuming that the cart and pendulum masses, pendulum length, and friction coefficient values in the inverted pendulum model are unknown ...
Gökhan DINDIŞ +1 more
doaj +1 more source
Do sewn singularities falsify the Palatini cosmology? [PDF]
, 2016 We investigate further (cf. arXiv:1512.01199, JCAP01 (2016) 040) Starobinsky cosmological model $R+\gamma R^2$ in the Palatini formalism with Chaplygin gas and baryonic matter as a source. For this aim we use dynamical system theory.
Borowiec, Andrzej +3 more
core +2 more sources
Alterations in the Phase Portrait and Electrophoretic Mobility of Erythrocytes in Various Diseases
Sovremennye tehnologii v medicine, 2019 The aim of the investigation was to study a phase portrait, electrophoretic mobility of erythrocytes (EPME), and clinical and laboratory blood indices in patients with various types of diseases. Materials and Methods. A phase portrait, EPME, and clinical
A. Deryugina +4 more
semanticscholar +1 more source
Phase portraits of generalf(T) cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 39 pages, 12 figures, version published in ...
Awad, A. +3 more
openaire +3 more sources