Results 11 to 20 of about 27,316 (287)

Stochastic Geodesics

open access: yes, 2021
We describe, in an intrinsic way and using the global chart provided by Ito's parallel transport, a generalisation of the notion of geodesic (as critical path of an energy functional) to diffusion processes on Riemannian manifolds. These stochastic processes are no longer smooth paths but they are still critical points of a regularised stochastic ...
Cruzeiro, Ana Bela   +1 more
openaire   +2 more sources

Variables Influencing the Accuracy of 3D Modeling of Existing Roads Using Consumer Cameras in Aerial Photogrammetry

open access: yesSensors, 2018
Point cloud (PC) generation from photogrammetry⁻remotely piloted aircraft systems (RPAS) at high spatial and temporal resolution and accuracy is of increasing importance for many applications.
Juan J. González-Quiñones   +4 more
doaj   +1 more source

Generalized Developable Cubic Trigonometric Bézier Surfaces

open access: yesMathematics, 2021
This paper introduces a new approach for the fabrication of generalized developable cubic trigonometric Bézier (GDCT-Bézier) surfaces with shape parameters to address the fundamental issue of local surface shape adjustment.
Muhammad Ammad   +3 more
doaj   +1 more source

Relaxation of Some Confusions about Confounders

open access: yesEntropy, 2021
This work is about observational causal discovery for deterministic and stochastic dynamic systems. We explore what additional knowledge can be gained by the usage of standard conditional independence tests and if the interacting systems are located in a
Ádám Zlatniczki   +4 more
doaj   +1 more source

Hosoya properties of the commuting graph associated with the group of symmetries

open access: yesMain Group Metal Chemistry, 2021
A vast amount of information about distance based graph invariants is contained in the Hosoya polynomial. Such an information is helpful to determine well-known distance based molecular descriptors.
Abbas Ghulam   +4 more
doaj   +1 more source

Hyperbolic Center of Mass for a System of Particles in a Two-Dimensional Space with Constant Negative Curvature: An Application to the Curved 2-Body Problem

open access: yesMathematics, 2021
In this article, a simple expression for the center of mass of a system of material points in a two-dimensional surface of Gaussian constant negative curvature is given.
Pedro Pablo Ortega Palencia   +2 more
doaj   +1 more source

Brownian Motion in Minkowski Space

open access: yesEntropy, 2015
We construct a model of Brownian motion in Minkowski space. There are two aspects of the problem. The first is to define a sequence of stopping times associated with the Brownian “kicks” or impulses.
Paul O'Hara, Lamberto Rondoni
doaj   +1 more source

Transversality Conditions for Geodesics on the Statistical Manifold of Multivariate Gaussian Distributions

open access: yesEntropy, 2022
We consider the problem of finding the closest multivariate Gaussian distribution on a constraint surface of all Gaussian distributions to a given distribution.
Trevor Herntier, Adrian M. Peter
doaj   +1 more source

A Geodesic-Based Riemannian Gradient Approach to Averaging on the Lorentz Group

open access: yesEntropy, 2017
In this paper, we propose an efficient algorithm to solve the averaging problem on the Lorentz group O ( n , k ) . Firstly, we introduce the geometric structures of O ( n , k ) endowed with a Riemannian metric where geodesic could be ...
Jing Wang, Huafei Sun, Didong Li
doaj   +1 more source

Evolutionary dynamics on a regular networked structured and unstructured multi‐population

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView., 2023
Abstract In this paper, we study collective decision‐making in a multi‐population framework, where groups of individuals represent whole populations that interact by means of a regular network. Each group consists of a number of players and every player can choose between two options.
Wouter Baar   +2 more
wiley   +1 more source

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