Buscar
Mostrando ítems 1-10 de 3890
The efficiency case for transit subsidies in the presence of a ‘soft’ budget constraint
(Universidad de Chile, Facultad de Economía y Negocios, 2017-07)
The main contribution of this paper is to discuss the implications of a ‘soft’ budget constraint on optimal transit fares and subsidies. We find that the e↵ect of productive ine"ciencies on optimal fares and subsidy levels ...
Nonequilibrium quantum phase transitions in the XY model: comparison of unitary time evolution and reduced density operator approaches
(IOP Publishing, 2014)
We study nonequilibrium quantum phase transitions in the XY spin 1/2 chain
using the C* algebra. We show that the well-known quantum phase transition at
a magnetic field of h = 1 also persists in the nonequilibrium setting ...
Transition thresholds and transition operators for binarization and edge detection
(2010)
The transition method for image binarization is based on the concept of t-transition pixels, a generalization of edge pixels, and t-transition sets. We introduce a novel unsupervised thresholding for unimodal histograms ...
Transition thresholds and transition operators for binarization and edge detection
(2010)
The transition method for image binarization is based on the concept of t-transition pixels, a generalization of edge pixels, and t-transition sets. We introduce a novel unsupervised thresholding for unimodal histograms ...
On the spectrum of stochastic perturbations of the shift and Julia sets
(Polish Acad Sciences Inst Mathematics, 2012-01-01)
We extend the Killeen-Taylor study [Nonlinearity 13 (2000)] by investigating in different Banach spaces (l(alpha)(N), c(0)(N),c(N)) the point, continuous and residual spectra of stochastic perturbations of the shift operator ...
On the spectrum of stochastic perturbations of the shift and Julia sets
(Polish Acad Sciences Inst Mathematics, 2012-01-01)
We extend the Killeen-Taylor study [Nonlinearity 13 (2000)] by investigating in different Banach spaces (l(alpha)(N), c(0)(N),c(N)) the point, continuous and residual spectra of stochastic perturbations of the shift operator ...
OPERATORS-USERS EQUILIBRIUM-MODEL IN A PARTIALLY REGULATED TRANSIT SYSTEM
(OPERATIONS RESEARCH SOC AMER, 1992)
We present two formulations of a model for finding equilibrium passenger and operator flows in a partially regulated transit system where bus operators are free to choose the routes on which they offer public transport ...
STOCHASTIC ADDING MACHINES BASED ON BRATTELI DIAGRAMS
(Annales Inst Fourier, 2020-01-01)
In this paper, we define some Markov chains associated with Vershik maps on Bratteli diagrams. We study probabilistic and spectral properties of their transition operators and we prove that the spectra of these operators ...
Stochastic adding machines based on Bratteli diagrams
(2020-01-01)
In this paper, we define some Markov chains associated with Vershik maps on Bratteli diagrams. We study probabilistic and spectral properties of their transition operators and we prove that the spectra of these operators ...