Outputs (145)

Global, geometrical coordinates on Falbel's cross-ratio variety (2009)
Journal Article
Parker, J. R., & Platis, I. D. (2009). Global, geometrical coordinates on Falbel's cross-ratio variety. Canadian Mathematical Bulletin, 52(2), 285-294. https://doi.org/10.4153/cmb-2009-031-3

Falbel has shown that four pairwise distinct points on the boundary of a complex hyperbolic 2-space are completely determined, up to conjugation in PU(2,1), by three complex cross-ratios satisfying two real equations. We give global geometrical coord... Read More about Global, geometrical coordinates on Falbel's cross-ratio variety.

A higher-order active contour model of a `gas of circles' and its application to tree crown extraction (2009)
Journal Article
Horváth, P., Jermyn, I., Kato, Z., & Zerubia, J. (2009). A higher-order active contour model of a `gas of circles' and its application to tree crown extraction. Pattern Recognition, 42(5), 699-709. https://doi.org/10.1016/j.patcog.2008.09.008

We present a model of a ‘gas of circles’: regions in the image domain composed of a unknown number of circles of approximately the same radius. The model has applications to medical, biological, nanotechnological, and remote sensing imaging. The mode... Read More about A higher-order active contour model of a `gas of circles' and its application to tree crown extraction.

Dynamical black holes and expanding plasmas (2009)
Journal Article
Figueras, P., Hubeny, V. E., Rangamani, M., & Ross, S. F. (2009). Dynamical black holes and expanding plasmas. Journal of High Energy Physics, 2009(04), Article 137. https://doi.org/10.1088/1126-6708/2009/04/137

We analyse the global structure of time-dependent geometries dual to expanding plasmas, considering two examples: the boost invariant Bjorken flow, and the conformal soliton flow. While the geometry dual to the Bjorken flow is constructed in a pertur... Read More about Dynamical black holes and expanding plasmas.

Dynamics of periodic monopoles. (2009)
Journal Article
Harland, D., & Ward, R. (2009). Dynamics of periodic monopoles. Physics Letters B, 675(2), 262-266. https://doi.org/10.1016/j.physletb.2009.03.074

BPS monopoles which are periodic in one of the spatial directions correspond, via a generalized Nahm transform, to solutions of the Hitchin equations on a cylinder. A one-parameter family of solutions of these equations, representing a geodesic in th... Read More about Dynamics of periodic monopoles..

Temperature versus acceleration: The Unruh effect for holographic models (2009)
Journal Article
Paredes, A., Peeters, K., & Zamaklar, M. (2009). Temperature versus acceleration: The Unruh effect for holographic models. Journal of High Energy Physics, 2009(04), Article 015. https://doi.org/10.1088/1126-6708/2009/04/015

We analyse the effect of velocity and acceleration on the temperature felt by particles and strings in backgrounds relevant in holographic models. First, we compare accelerated strings and strings at finite temperature. We find that for fixed Unruh t... Read More about Temperature versus acceleration: The Unruh effect for holographic models.

DNA duplex cage structures with icosahedral symmetry (2009)
Journal Article
Grayson, N., Taormina, A., & Twarock, R. (2009). DNA duplex cage structures with icosahedral symmetry. Theoretical Computer Science, 410(15), 1440-1447. https://doi.org/10.1016/j.tcs.2008.12.005

A construction method for duplex cage structures with icosahedral symmetry made out of single-stranded DNA molecules is presented and applied to an icosidodecahedral cage. It is shown via a mixture of analytic and computer techniques that there exist... Read More about DNA duplex cage structures with icosahedral symmetry.

Scattering of sine-Gordon Breathers on a Potential Well (2009)
Journal Article
Piette, B., & Zakrzewski, W. (2009). Scattering of sine-Gordon Breathers on a Potential Well. Physical review E: Statistical, nonlinear, and soft matter physics, 79(4), Article 046603. https://doi.org/10.1103/physreve.79.046603

We analyze the scattering of the classical sine-Gordon breathers on a square potential well. We show that the scattering process depends not only on the vibration frequency of the breather and its incoming speed but also on its phase as well as the d... Read More about Scattering of sine-Gordon Breathers on a Potential Well.

Finite approximations to coherent choice (2009)
Journal Article
Troffaes, M. (2009). Finite approximations to coherent choice. International Journal of Approximate Reasoning: Uncertainty in Intelligent Systems, 50(4), 655-665. https://doi.org/10.1016/j.ijar.2008.07.001

This paper studies and bounds the effects of approximating loss functions and credal sets on choice functions, under very weak assumptions. In particular, the credal set is assumed to be neither convex nor closed. The main result is that the effects... Read More about Finite approximations to coherent choice.

Imprecision in Statistical Theory and Practice (2009)
Journal Article
Coolen-Schrijner, P., Coolen, F. P., Troffaes, M. C., & Augustin, T. (2009). Imprecision in Statistical Theory and Practice. Journal of statistical theory and practice, 3(1), 1-9

Checking formalism for central exclusive production in the first LHC runs. (2009)
Presentation / Conference Contribution
Martin, A., Khoze, V., & Ryskin, M. (2009, March). Checking formalism for central exclusive production in the first LHC runs. Presented at 2nd workshop on the implications of HERA for LHC physics, Hamburg - Geneva

We discuss how the early LHC data runs can provide crucial tests of the formalism used to predict the cross sections of central exclusive production.