Outputs (127)

Spine-fan reconnection. The influence of temporal and spatial variation in the driver (2012)
Journal Article
Wyper, P., Jain, R., & Pontin, D. (2012). Spine-fan reconnection. The influence of temporal and spatial variation in the driver. Astronomy & Astrophysics, 545, Article A78. https://doi.org/10.1051/0004-6361/201219281

Context. From observations, the atmosphere of the Sun has been shown to be highly dynamic with perturbations of the magnetic field often lacking temporal or spatial symmetry. Despite this, studies of the spine-fan reconnection mode at 3D nulls have s... Read More about Spine-fan reconnection. The influence of temporal and spatial variation in the driver.

The Phenomenology of Central Exclusive Production at Hadron Colliders. (2012)
Journal Article
Harland-Lang, L., Khoze, V., Ryskin, M., & Stirling, W. (2012). The Phenomenology of Central Exclusive Production at Hadron Colliders. The European Physical Journal C, 72, Article 2110. https://doi.org/10.1140/epjc/s10052-012-2110-2

Central exclusive production (CEP) processes in high-energy hadron–hadron collisions provide an especially clean environment in which to measure the nature and quantum numbers (in particular, the spin and parity) of new resonance states. Encouraged b... Read More about The Phenomenology of Central Exclusive Production at Hadron Colliders..

On a general many-dimensional excited random walk (2012)
Journal Article
Menshikov, M., Popov, S., Ramírez, A. F., & Vachkovskaia, M. (2012). On a general many-dimensional excited random walk. Annals of Probability, 40(5), 2106-2130. https://doi.org/10.1214/11-aop678

In this paper we study a substantial generalization of the model of excited random walk introduced in [Electron. Commun. Probab. 8 (2003) 86–92] by Benjamini and Wilson. We consider a discrete-time stochastic process (Xn,n=0,1,2,…) taking values on Z... Read More about On a general many-dimensional excited random walk.

A phase field method for tomographic reconstruction from limited data (2012)
Presentation / Conference Contribution
Hewett, R. J., Jermyn, I., Heath, M. T., & Kamalabadi, F. (2012, September). A phase field method for tomographic reconstruction from limited data. Presented at British Machine Vision Conference 2012 (BMVC), Guildford, Surrey

Classical tomographic reconstruction methods fail for problems in which there is extreme temporal and spatial sparsity in the measured data. Reconstruction of coronal mass ejections (CMEs), a space weather phenomenon with potential negative effects o... Read More about A phase field method for tomographic reconstruction from limited data.

Testing multiple variance components in linear mixed-effects models (2012)
Journal Article
Drikvandi, R., Verbeke, G., Khodadadi, A., & Partovi Nia, V. (2013). Testing multiple variance components in linear mixed-effects models. Biostatistics, 14(1), 144-159. https://doi.org/10.1093/biostatistics/kxs028

Testing zero variance components is one of the most challenging problems in the context of linear mixed-effects (LME) models. The usual asymptotic chi-square distribution of the likelihood ratio and score statistics under this null hypothesis is inco... Read More about Testing multiple variance components in linear mixed-effects models.

A Counter Example to Cercignani’s Conjecture for the d Dimensional Kac Model (2012)
Journal Article
Einav, A. (2012). A Counter Example to Cercignani’s Conjecture for the d Dimensional Kac Model. Journal of Statistical Physics, 148(6), 1076–1103. https://doi.org/10.1007/s10955-012-0565-z

Kac’s d dimensional model gives a linear, many particle, binary collision model from which, under suitable conditions, the celebrated Boltzmann equation, in its spatially homogeneous form, arise as a mean field limit. The ergodicity of the evolution... Read More about A Counter Example to Cercignani’s Conjecture for the d Dimensional Kac Model.

Nonparametric predictive inference for binary diagnostic tests (2012)
Journal Article
Coolen-Maturi, T., Coolen-Schrijner, P., & Coolen, F. (2012). Nonparametric predictive inference for binary diagnostic tests. Journal of statistical theory and practice, 6(4), 665-680. https://doi.org/10.1080/15598608.2012.719800

Measuring the accuracy of diagnostic tests is crucial in many application areas, including medicine, health care, and data mining. Good methods for determining diagnostic accuracy provide useful guidance on selection of patient treatment, and the abi... Read More about Nonparametric predictive inference for binary diagnostic tests.

On the quantification of intertest variability in ecotoxicity data with application to species sensitivity distributions (2012)
Journal Article
Hickey, G., Craig, P., Luttik, R., & De Zwart, D. (2012). On the quantification of intertest variability in ecotoxicity data with application to species sensitivity distributions. Environmental Toxicology and Chemistry, 31(8), 1903-1910. https://doi.org/10.1002/etc.1891

Ecotoxicological hazard assessment relies on species effect data to estimate quantities such as the predicted no-effect concentration. While there is a concerted effort to quantify uncertainty in risk assessments, the uncertainty due to intertest var... Read More about On the quantification of intertest variability in ecotoxicity data with application to species sensitivity distributions.

Traces in complex hyperbolic geometry (2012)
Presentation / Conference Contribution
Parker, J. R. (2012, August). Traces in complex hyperbolic geometry. Presented at Geometry, Topology and Dynamics of Character Varieties, National University of Singapore

We discuss the relationship between the geometry of complex hyperbolic manifolds and orbifolds and the traces of elements of the corresponding subgroup of SU(2, 1). We begin by showing how geometrical information about individual isometries is encode... Read More about Traces in complex hyperbolic geometry.

Hyperbolic diffusion with Christov–Morro theory (2012)
Journal Article
Gentile, M., & Straughan, B. (2012). Hyperbolic diffusion with Christov–Morro theory. Mathematics and Computers in Simulation, 127, 94-100. https://doi.org/10.1016/j.matcom.2012.07.010

We employ recent ideas of C.I. Christov and of A. Morro to develop a theory for diffusion of a solute in a Darcy porous medium taking convection effects into account. The key point is that the solute evolution is not governed by a parabolic system of... Read More about Hyperbolic diffusion with Christov–Morro theory.