Results 11 to 20 of about 1,282,521 (243)

Non-local non-linear sigma models

open access: yesJournal of High Energy Physics, 2019
We study non-local non-linear sigma models in arbitrary dimension, focusing on the scale invariant limit in which the scalar fields naturally have scaling dimension zero, so that the free propagator is logarithmic.
Steven S. Gubser   +4 more
doaj   +1 more source

Linear and Non-Linear Models for Remotely-Sensed Hyperspectral Image Visualization

open access: yesRemote Sensing, 2020
The visualization of hyperspectral images still constitutes an open question and may have an important impact on the consequent analysis tasks. The existing techniques fall mainly in the following categories: band selection, PCA-based approaches, linear ...
Radu-Mihai Coliban   +3 more
doaj   +1 more source

Production Constraints Modelling: A Tactical Review Approach [PDF]

open access: yesJournal of Optimization in Industrial Engineering, 2020
A constraint is a limitation or a restriction that poses a threat to the performance and efficiency of a system. This paper presented a tactical review approach to production constraints modeling.
Chinedum Mgbemena   +2 more
doaj   +1 more source

Linear and non-linear optimization models for the selection of investment portfolio

open access: yesLietuvos Matematikos Rinkinys, 2021
This research suggests a maxmin model for the selection of investment portfolios. The risk evaluation coefficients are introduced. The components of portfolio are found by solving linear programming task in onemodel and non-linear programming task in the
Sigutė Vakrinienė   +1 more
doaj   +1 more source

Non-linear protocell models: synchronization and chaos [PDF]

open access: yesThe European Physical Journal B, 2010
We consider generic protocells models allowing linear and non-linear kinetics for the main involved chemical reactions.We are interested in understanding if and how the protocell division and the metabolism do synchronize to give rise to sustainable evolution of the protocell.
FILISETTI, alessandro   +4 more
openaire   +4 more sources

Non-Linear Macroeconomic Models of Growth with Memory

open access: yesMathematics, 2020
In this article, two well-known standard models with continuous time, which are proposed by two Nobel laureates in economics, Robert M. Solow and Robert E. Lucas, are generalized.
Vasily E. Tarasov
doaj   +1 more source

Non-linear duality invariant partially massless models?

open access: yesPhysics Letters B, 2016
We present manifestly duality invariant, non-linear, equations of motion for maximal depth, partially massless higher spins. These are based on a first order, Maxwell-like formulation of the known partially massless systems.
D. Cherney   +3 more
doaj   +1 more source

Neighborhood Approximations for Non-Linear Voter Models

open access: yesEntropy, 2015
Non-linear voter models assume that the opinion of an agent depends on the opinions of its neighbors in a non-linear manner. This allows for voting rules different from majority voting. While the linear voter model is known to reach consensus, non-linear
Frank Schweitzer, Laxmidhar Behera
doaj   +1 more source

Forecasting Volatility of Dhaka Stock Exchange: Linear Vs Non-linear models

open access: yesInternational Journal of Science and Engineering, 2012
Prior information about a financial market is very essential for investor to invest money on parches share from the stock market which can strengthen the economy.
Masudul Islam   +2 more
doaj   +1 more source

3D Model Identification of a Soft Robotic Neck

open access: yesMathematics, 2021
Soft robotics is becoming an emerging solution to many of the problems in robotics, such as weight, cost and human interaction. In order to overcome such problems, bio-inspired designs have introduced new actuators, links and architectures.
Fernando Quevedo   +3 more
doaj   +1 more source

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