Results 91 to 100 of about 1,911,572 (273)

Effective cosmological constant induced by stochastic fluctuations of Newton's constant

open access: yesPhysics Letters B, 2016
We consider implications of the microscopic dynamics of spacetime for the evolution of cosmological models. We argue that quantum geometry effects may lead to stochastic fluctuations of the gravitational constant, which is thus considered as a ...
Marco de Cesare   +2 more
doaj   +1 more source

Dynamics of curved interfaces

open access: yes, 2009
Stochastic growth phenomena on curved interfaces are studied by means of stochastic partial differential equations. These are derived as counterparts of linear planar equations on a curved geometry after a reparametrization invariance principle has been ...
Barabási   +34 more
core   +1 more source

Lenses in Skew Brownian Flow

open access: yes, 2005
We consider a stochastic flow in which individual particles follow skew Brownian motions, with each one of these processes driven by the same Brownian motion.
Burdzy, Krzysztof, Kaspi, Haya
core   +2 more sources

Li-Yau Type Gradient Estimates and Harnack Inequalities by Stochastic Analysis [PDF]

open access: yes, 2009
In this paper we use methods from Stochastic Analysis to establish Li-Yau type estimates for positive solutions of the heat equation. In particular, we want to emphasize that Stochastic Analysis provides natural tools to derive local estimates in the ...
Arnaudon, Marc, Thalmaier, Anton
core   +3 more sources

LENGTH DISTRIBUTION OF FUZZY-END SEGMENTS

open access: yesTASK Quarterly, 2006
We have calculated and discussed the probability density distributions of lengths of fuzzy-end segments, i.e. segments the ends of which assume random positions.
SANDRO FRIGIO   +4 more
doaj  

QoE and Cost for Wireless Networks With Mobility Under Spatio-Temporal Traffic

open access: yesIEEE Access, 2019
Mobility is a key factor that influences the spatial and temporal fluctuation of wireless traffic, which is highly coupled with the user experience. Previous researches barely explore the properties of the traffic when the mobility is considered. In this
Yi Zhong   +4 more
doaj   +1 more source

Mean-Reverting Stochastic Processes, Evaluation of Forward Prices and Interest Rates [PDF]

open access: yes
We consider mean-reverting stochastic processes and build self-consistent models for forward price dynamics and some applications in power industries. These models are built using the ideas and equations of stochastic differential geometry in order to ...
Aguero-Granados, M. A., Makhankov, V. G.
core   +1 more source

Estimation of a 3D motion field from a multi-camera array using a multiresolution Gaussian mixture model [PDF]

open access: yes, 2008
The problem of modelling geometry for video based rendering has been much studied in recent years, due to the growing interest in 'free viewpoint' video and similar applications.
Bowen, Adam   +3 more
core   +2 more sources

Cooperative Full Duplex Content Sensing and Delivery Improves the Offloading Probability of D2D Caching

open access: yesIEEE Access, 2019
A novel policy is conceived for device-to-device (D2D) caching that facilitates content sensing and delivery using full-duplex (FD) communications. As a benefit, the user devices become capable of performing content sensing and delivery over an extended ...
Yingyang Chen   +4 more
doaj   +1 more source

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