Results 21 to 30 of about 1,795,811 (300)

Fokker–Planck equation on metric graphs [PDF]

open access: yesPhysica A: Statistical Mechanics and its Applications, 2022
We consider the Fokker-Planck equation on metric graphs. Vertex boundary conditions are imposed in the form of weight continuity and the probability current conservation. Exact solution of the is obtained for star, tree and loop graphs. Applications of the model to Brownian motion in networks and other problems are briefly discussed.
J. Matrasulov, K. Sabirov
openaire   +2 more sources

Analysis, Modeling and Simulation of Mechatronic Systems using the Bond Graph Method [PDF]

open access: yesModeling, Identification and Control, 2011
The Bond Graph is the proper choice of physical system used for: (i) Modeling which can be applied to systems combining multidisciplinary energy domains, (ii) Analysis to provide a great value proposition for finding the algebraic loops within the system
A. Alabakhshizadeh   +3 more
doaj   +1 more source

Poisson equations for elliptic modular graph functions

open access: yesPhysics Letters B, 2021
We obtain Poisson equations satisfied by elliptic modular graph functions with four links. Analysis of these equations leads to a non–trivial algebraic relation between the various graphs.
Anirban Basu
doaj   +1 more source

On the existence of solutions for fractional boundary value problems on the ethane graph

open access: yesAdvances in Difference Equations, 2020
A few researchers have studied fractional differential equations on star graphs. They use star graphs because their method needs a common point which has edges with other nodes while other nodes have no edges between themselves.
Sina Etemad, Shahram Rezapour
doaj   +1 more source

Graph equations for line graphs and total graphs

open access: yesDiscrete Mathematics, 1975
AbstractAll pairs (G,H) of graphs G,H satisfying L(G) = T(H) are determined. The “graph equation“ L(G)= T(H) is also solved.
Dragos M. Cvetkovic, Slobodan K. Simic
openaire   +2 more sources

Optimising orbit counting of arbitrary order by equation selection

open access: yesBMC Bioinformatics, 2019
Background Graphlets are useful for bioinformatics network analysis. Based on the structure of Hočevar and Demšar’s ORCA algorithm, we have created an orbit counting algorithm, named Jesse.
Ine Melckenbeeck   +5 more
doaj   +1 more source

Power evaluation of advanced energy-harvester using graphical analysis

open access: yesMechanical Engineering Journal, 2015
In this paper, we present the benefits of bond-graph analysis for mechanical-electrical systems, which are energy-harvesters based on structural vibrations and electric loads.
Kanjuro MAKIHARA   +3 more
doaj   +1 more source

Different Dynamic Formulations for a Mechanism using Bond Graph

open access: yesComputer Assisted Methods in Engineering and Science, 2020
For modeling dynamics of mechanisms, various classical formulations are available in the literature. The equations of dynamics given by various classical formulations can also be derived from the bond graph.
Aman Kumar Maini, Anand Vaz
doaj   +1 more source

Governing equation discovery based on causal graph for nonlinear dynamic systems

open access: yesMachine Learning: Science and Technology, 2023
The governing equations of nonlinear dynamic systems is of great significance for understanding the internal physical characteristics. In order to learn the governing equations of nonlinear systems from noisy observed data, we propose a novel method ...
Dongni Jia   +4 more
doaj   +1 more source

Kazdan–Warner equation on graph [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2016
Let $G=(V,E)$ be a finite graph and $Δ$ be the usual graph Laplacian. Using the calculus of variations and a method of upper and lower solutions, we give various conditions such that the Kazdan-Warner equation $Δu=c-he^u$ has a solution on $V$, where $c$ is a constant, and $h:V\rightarrow\mathbb{R}$ is a function.
Grigor'yan, Alexander   +2 more
openaire   +2 more sources

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