Browsing Τμήμα Μαθηματικών και Στατιστικής / Department of Mathematics and Statistics by Title
Now showing items 1175-1194 of 1633
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Article
Quantitative stability for the first Dirichlet eigenvalue in Reifenberg flat domains in RN
(2010)In this paper we prove that if Ω and Ω′ are close enough for the complementary Hausdorff distance and their boundaries satisfy some geometrical and topological conditions then| λ1 - λ1′ | ≤ C | Ω △ Ω′ |frac(α, N) where λ1 ...
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Quasi-likelihood inference for negative binomial time series models
(2014)We study inference and diagnostics for count time series regression models that include a feedback mechanism. In particular, we are interested in negative binomial processes for count time series. We study probabilistic ...
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Conference Object
Queue length based internet congestion control123
(2007)In this paper we present a new queue length based Internet congestion control protocol which is shown through simulations to work effectively. The control objective is to regulate the queue size at each link so that it ...
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Article
Quotients of schemes by αp or μp actions in characteristic p> 0
(2017)This paper studies integral schemes X defined over a field of characteristic p> 0 which admit a nontrivial αp or μp action. In particular, the quotient map X→ Y is investigated and structure theorems for it are obtained. ...
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Conference Object
Radio propagation in industrial wireless sensor network environments: From testbed to simulation evaluation
(2012)In recent years, sensor networks characteristics have led to incremental utilization in different types of applications. Several techniques have been proposed to evaluate the performance of WSNs
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Random spectral measure for non Gaussian moving averages
(2017)We study the distribution of phases and amplitudes for the spectral representation of weighted moving averages of a general noise measure. The simple independent structure, known for the Gaussian case, and involving Rayleigh ...
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Article
Random spectral measure for non Gaussian moving averages
(2018)We study the distribution of phases and amplitudes for the spectral representation of weighted moving averages of a general noise measure. The simple independent structure, known for the Gaussian case, and involving Rayleigh ...
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Article
Random walks on discrete groups of polynomial volume growth
(2002)Let μ be a probability measure with finite support on a discrete group Γ of polynomial volume growth. The main purpose of this paper is to study the asymptotic behavior of the convolution powers μ*n μ. If μ is centered, ...
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Article
Randomized response in stratified sampling
(2005)This paper extends the randomized response model presented in Christofides (Metrika 57 (2003)195) to the case of stratified sampling. A comparison between the application of the technique in stratified and simple random ...
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Article
Randomized response technique for two sensitive characteristics at the same time
(2005)In this paper we present a randomized response technique which can be used to estimate the proportion of individuals having two sensitive characteristics at the same time. The information obtained from this procedure can ...
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Conference Object
Randomness switches the dynamics in a biophysical model for Parkinson Disease
(2012)The interpallidal network of the two areas, the Globus Pallidus External (GPE) and the Subthalamic nucleus, (STN) plays an important role for controlling the movement. Changes in the dynamics of this network are closed ...
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Article
Rate of convergence for vanishing viscosity approximations to hyperbolic balance laws
(2011)The rate of convergence for vanishing viscosity approximations to hyperbolic balance laws is established. The result applies to systems that are strictly hyperbolic and genuinely nonlinear with a source term satisfying a ...
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Article
Rate of convergence in the strong law of large numbers for a class of u-statistics and von Mises statistics
(1997)For the class of U-statistics based on multidimensionally indexed random variables introduced in Christofides (1987), an improved rate of convergence in the strong law of large numbers is obtained using martingale inequalities ...
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Article
Rate of convergence in the strong law of large numbers for U-statistics based on a multidimensionally indexed array of random variables
(1990)U-statistics based on a multidimensionally indexed array of random variables were introduced in Christofides (1987). In this paper, the rate of convergence in the strong law of large numbers for this class of U-statistics ...
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Article
Rational bases for spaces of holomorphic functions in the disc
(2014)A new method for construction of bases for general distribution spaces is developed. This method allows the freedom to prescribe the nature and properties of the basis elements. The method is deployed to the construction ...
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Article
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Conference Object
Real-Time Control of a Segmented Telescope Test-Bed
(2003)The control of large segmented telescopes is a challenging one due to the complexity and high order of the system. The high order dynamics lead to high order controllers that require more memory and faster computations for ...
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Article
Real-time estimation of travel times along the arcs and arrival times at the nodes of dynamic stochastic networks
(2008)Route planning in uncertain and dynamic networks has recently emerged as an active and intense area of research, both due to industry needs and technological advances. This paper investigates methods to predict travel times ...
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Conference Object
Real-time parallel parameter estimators for a second-order macroscopic traffic flow model
(2006)The on-line estimation of traffic flow characteristics could be used for traffic control, incident management etc. This paper presents a real-time parameter estimation scheme based on a second-order macroscopic traffic ...