Skip to main content

Research Repository

Advanced Search

All Outputs (207)

Bayesian shape modelling of cross-sectional geological data (2014)
Conference Proceeding
Tsiftsi, T., Jermyn, I., & Einbeck, J. (2014). Bayesian shape modelling of cross-sectional geological data. In K. Thomas, S. Fabian, F. Jan, & I. Henriette (Eds.), 29th International Workshop on Statistical Modelling, 14-18 July 2014, Göttingen, Germany ; proceedings (161-164)

Shape information is of great importance in many applications. For example, the oil-bearing capacity of sand bodies, the subterranean remnants of ancient rivers, is related to their cross-sectional shapes. The analysis of these shapes is therefore of... Read More about Bayesian shape modelling of cross-sectional geological data.

Bivariate Estimation of Distribution Algorithms for Protein Structure Prediction (2014)
Conference Proceeding
Bonetti, D., Delbem, A., & Einbeck, J. (2014). Bivariate Estimation of Distribution Algorithms for Protein Structure Prediction. In T. Kneib, F. Sobotka, J. Fahrenholz, & H. Irmer (Eds.), 29th International Workshop on Statistical Modelling, 14-18 July 2014, Göttingen, Germany ; proceedings (15-18)

A real-valued bivariate ‘Estimation of Distribution Algorithm’ specific for the ab initio and full-atom Protein Structure Prediction problem is proposed. It is known that this is a multidimensional and multimodal problem. In order to deal with the mu... Read More about Bivariate Estimation of Distribution Algorithms for Protein Structure Prediction.

Partition Functions of N=(2,2) Gauge Theories on S2 and Vortices (2014)
Journal Article
Benini, F., & Cremonesi, S. (2014). Partition Functions of N=(2,2) Gauge Theories on S2 and Vortices. Communications in Mathematical Physics, 334(3), 1483-1527. https://doi.org/10.1007/s00220-014-2112-z

We apply localization techniques to compute the partition function of a two-dimensional N=(2,2)N=(2,2) R-symmetric theory of vector and chiral multiplets on S2. The path integral reduces to a sum over topological sectors of a matrix integral over the... Read More about Partition Functions of N=(2,2) Gauge Theories on S2 and Vortices.

Probabilistic skill in ensemble seasonal forecasts (2014)
Journal Article
Smith, L. A., Du, H., Suckling, E. B., & Niehörster, F. (2015). Probabilistic skill in ensemble seasonal forecasts. Quarterly Journal of the Royal Meteorological Society, 141(689), 1085-1100. https://doi.org/10.1002/qj.2403

Simulation models are widely employed to make probability forecasts of future conditions on seasonal to annual lead times. Added value in such forecasts is reflected in the information they add, either to purely empirical statistical models or to sim... Read More about Probabilistic skill in ensemble seasonal forecasts.

Comments on N = (2, 2) supersymmetry on two-manifolds (2014)
Journal Article
Closset, C., & Cremonesi, S. (2014). Comments on N = (2, 2) supersymmetry on two-manifolds. Journal of High Energy Physics, 2014(07), Article 075. https://doi.org/10.1007/jhep07%282014%29075

We study curved-space rigid supersymmetry for two-dimensional NN = (2, 2) supersymmetric fields theories with a vector-like R-symmetry by coupling such theories to background supergravity. The associated Killing spinors can be viewed as holomorphic s... Read More about Comments on N = (2, 2) supersymmetry on two-manifolds.

Cubic hypersurfaces and a version of the circle method for number fields (2014)
Journal Article
Browning, T., & Vishe, P. (2014). Cubic hypersurfaces and a version of the circle method for number fields. Duke Mathematical Journal, 163(10), 1825-1883. https://doi.org/10.1215/00127094-2738530

A version of the Hardy–Littlewood circle method is developed for number fields K/QK/Q and is used to show that nonsingular projective cubic hypersurfaces over KK always have a KK-rational point when they have dimension at least 88.

Covering link calculus and the bipolar filtration of topologically slice links (2014)
Journal Article
Cha, J. C., & Powell, M. (2014). Covering link calculus and the bipolar filtration of topologically slice links. Geometry & Topology, 18(3), 1539-1579. https://doi.org/10.2140/gt.2014.18.1539

The bipolar filtration introduced by T Cochran, S Harvey and P Horn is a framework for the study of smooth concordance of topologically slice knots and links. It is known that there are topologically slice 1–bipolar knots which are not 2–bipolar. For... Read More about Covering link calculus and the bipolar filtration of topologically slice links.

Nonparametric Predictive Inference with Combined Data Under Different Right-Censoring Schemes (2014)
Journal Article
Coolen-Maturi, T., & Coolen, F. (2015). Nonparametric Predictive Inference with Combined Data Under Different Right-Censoring Schemes. Journal of statistical theory and practice, 9(2), 288-304. https://doi.org/10.1080/15598608.2014.886313

This paper presents nonparametric predictive inference (NPI) for meta-analysis in which multiple independent samples of lifetime data are combined, where different censoring schemes may apply to the different samples. NPI is a frequentist statistical... Read More about Nonparametric Predictive Inference with Combined Data Under Different Right-Censoring Schemes.

Optimality of the Triangular Lattice for a Particle System with Wasserstein Interaction (2014)
Journal Article
Bourne, D., Peletier, M., & Theil, F. (2014). Optimality of the Triangular Lattice for a Particle System with Wasserstein Interaction. Communications in Mathematical Physics, 329(1), 117-140. https://doi.org/10.1007/s00220-014-1965-5

We prove strong crystallization results in two dimensions for an energy that arises in the theory of block copolymers. The energy is defined on sets of points and their weights, or equivalently on the set of atomic measures. It consists of two terms;... Read More about Optimality of the Triangular Lattice for a Particle System with Wasserstein Interaction.

Natural supersymmetry and dynamical flavour with meta-stable vacua (2014)
Journal Article
Abel, S., & McGarrie, M. (2014). Natural supersymmetry and dynamical flavour with meta-stable vacua. Journal of High Energy Physics, 2014(7), Article 145. https://doi.org/10.1007/jhep07%282014%29145

We show how gauged flavour breaking and N = 1 supersymmetry breaking can be dynamically aligned to produce natural models. Supersymmetry is broken in a metastable vacuum, while a weakly gauged flavour symmetry is identified with an SU (3) F subgroup... Read More about Natural supersymmetry and dynamical flavour with meta-stable vacua.

Novel Higgs potentials from gauge mediation of exact scale breaking (2014)
Journal Article
Abel, S., & Mariotti, A. (2014). Novel Higgs potentials from gauge mediation of exact scale breaking. Physical Review D, 89(12), Article 125018. https://doi.org/10.1103/physrevd.89.125018

We present a gauge mediation principle for beyond standard model theories where exact UV scale invariance is broken in a hidden sector. The relevant configurations are those in which the standard model and a hidden sector emanate from a scale invaria... Read More about Novel Higgs potentials from gauge mediation of exact scale breaking.

Dark D-brane cosmology (2014)
Journal Article
Koivisto, T., Wills, D., & Zavala, I. (2014). Dark D-brane cosmology. Journal of Cosmology and Astroparticle Physics, 2014(06), Article 036. https://doi.org/10.1088/1475-7516/2014/06/036

Disformally coupled cosmologies arise from Dirac-Born-Infeld actions in Type II string theories, when matter resides on a moving hidden sector D-brane. Since such matter interacts only very weakly with the standard model particles, this scenario can... Read More about Dark D-brane cosmology.

Collective coordinate approximation to the scattering of solitons in the (1+1) dimensional NLS model (2014)
Journal Article
Baron, H., Zakrzewski, W., & Luchini, G. (2014). Collective coordinate approximation to the scattering of solitons in the (1+1) dimensional NLS model. Journal of Physics A: Mathematical and Theoretical, 47(26), Article 265201. https://doi.org/10.1088/1751-8113/47/26/265201

We present a collective coordinate approximation to model the dynamics of two interacting nonlinear Schrödinger solitons. We discuss the accuracy of this approximation by comparing our results with those of the full numerical simulations and find tha... Read More about Collective coordinate approximation to the scattering of solitons in the (1+1) dimensional NLS model.

Bayesian inference for reliability of systems and networks using the survival signature (2014)
Journal Article
Aslett, L., Coolen, F., & Wilson, S. (2015). Bayesian inference for reliability of systems and networks using the survival signature. Risk Analysis, 35(9), 1640-1651. https://doi.org/10.1111/risa.12228

The concept of survival signature has recently been introduced as an alternative to the signature for reliability quantification of systems. While these two concepts are closely related for systems consisting of a single type of component, the surviv... Read More about Bayesian inference for reliability of systems and networks using the survival signature.

Thermal enhancement and stochastic resonance of polaron ratchet (2014)
Journal Article
Brizhik, L., Eremko, A., Piette, B., & Zakrzewski, W. (2014). Thermal enhancement and stochastic resonance of polaron ratchet. Physical review E: Statistical, nonlinear, and soft matter physics, 89(6), Article 062905. https://doi.org/10.1103/physreve.89.062905

We study the ratchet drift of large polarons (solitons) in molecular diatomic chains induced by unbiased time periodic electric fields at nonzero temperature below its critical value. We show that, at a nonzero temperature, the critical value of the... Read More about Thermal enhancement and stochastic resonance of polaron ratchet.

Resonant Penetrative Convection with an Internal Heat Source/Sink (2014)
Journal Article
Straughan, B. (2014). Resonant Penetrative Convection with an Internal Heat Source/Sink. Acta Applicandae Mathematicae, 132(1), 561-581. https://doi.org/10.1007/s10440-014-9930-z

We develop a detailed linear instability and nonlinear stability analysis for the situation of convection in a horizontal plane layer of fluid when there is a heat sink/source which is linear in the vertical coordinate which is in the opposite direct... Read More about Resonant Penetrative Convection with an Internal Heat Source/Sink.

Novel metals and insulators from holography (2014)
Journal Article
Donos, A., & Gauntlett, J. P. (2014). Novel metals and insulators from holography. Journal of High Energy Physics, 2014(6), https://doi.org/10.1007/jhep06%282014%29007

Using simple holographic models in D = 4 spacetime dimensions we construct black hole solutions dual to d = 3 CFTs at finite charge density with a Q-lattice deformation. At zero temperature we find new ground state solutions, associated with broken t... Read More about Novel metals and insulators from holography.