Outputs (184)

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.

Bethe ansatz for Yangian invariants: Towards super Yang–Mills scattering amplitudes (2014)
Journal Article
Frassek, R., Kanning, N., Ko, Y., & Staudacher, M. (2014). Bethe ansatz for Yangian invariants: Towards super Yang–Mills scattering amplitudes. Nuclear Physics B, 883, 373-424. https://doi.org/10.1016/j.nuclphysb.2014.03.015

We propose that Baxter's Z -invariant six-vertex model at the rational gl(2) point on a planar but in general not rectangular lattice provides a way to study Yangian invariants. These are identified with eigenfunctions of certain monodromies of an au... Read More about Bethe ansatz for Yangian invariants: Towards super Yang–Mills scattering amplitudes.

Growth of cross-characteristic representations of finite quasisimple groups of Lie type (2014)
Journal Article
Häsä, J. (2014). Growth of cross-characteristic representations of finite quasisimple groups of Lie type. Journal of Algebra, 407, 275-306. https://doi.org/10.1016/j.jalgebra.2014.02.031

In this paper we give a bound to the number of conjugacy classes of maximal subgroups of any almost simple group whose socle is a classical group of Lie type. The bound is View the MathML source, where n is the dimension of the classical socle and q... Read More about Growth of cross-characteristic representations of finite quasisimple groups of Lie type.

Dynamics of monopole walls (2014)
Journal Article
Maldonado, R., & Ward, R. (2014). Dynamics of monopole walls. Physics Letters B, 734, 328-332. https://doi.org/10.1016/j.physletb.2014.05.072

The moduli space of centred Bogomolny–Prasad–Sommerfield 2-monopole fields is a 4-dimensional manifold M with a natural metric, and the geodesics on M correspond to slow-motion monopole dynamics. The best-known case is that of monopoles on R3, where... Read More about Dynamics of monopole walls.

The superconformal index of class $ \mathcal{S} $ theories of type D (2014)
Journal Article
Lemos, M., Peelaers, W., & Rastelli, L. (2014). The superconformal index of class $ \mathcal{S} $ theories of type D. Journal of High Energy Physics, 2014(5), https://doi.org/10.1007/jhep05%282014%29120

Time-weighted multi-touch attribution and channel relevance in the customer journey to online purchase (2014)
Journal Article
Wooff, D., & Anderson, J. (2015). Time-weighted multi-touch attribution and channel relevance in the customer journey to online purchase. Journal of statistical theory and practice, 9(2), 227-249. https://doi.org/10.1080/15598608.2013.862753

We address statistical issues in attributing revenue to marketing channels and inferring the importance of individual channels in customer journeys towards an online purchase. We describe the relevant data structures and introduce an example. We sugg... Read More about Time-weighted multi-touch attribution and channel relevance in the customer journey to online purchase.

A simple holographic model of momentum relaxation (2014)
Journal Article
Andrade, T., & Withers, B. (2014). A simple holographic model of momentum relaxation. Journal of High Energy Physics, 2014(5), Article 101. https://doi.org/10.1007/jhep05%282014%29101

We consider a holographic model consisting of Einstein-Maxwell theory in d + 1 bulk spacetime dimensions with d − 1 massless scalar fields. Momentum relaxation is realised simply through spatially dependent sources for operators dual to the neutral s... Read More about A simple holographic model of momentum relaxation.

Non-homogeneous random walks on a semi-infinite strip (2014)
Journal Article
Georgiou, N., & Wade, A. R. (2014). Non-homogeneous random walks on a semi-infinite strip. Stochastic Processes and their Applications, 124(10), 3179-3205. https://doi.org/10.1016/j.spa.2014.05.005

We study the asymptotic behaviour of Markov chains (Xn,ηn) on Z+×S, where Z+ is the non-negative integers and S is a finite set. Neither coordinate is assumed to be Markov. We assume a moments bound on the jumps of Xn, and that, roughly speaking, ηn... Read More about Non-homogeneous random walks on a semi-infinite strip.

Observations of a hybrid double-streamer/pseudostreamer in the solar corona (2014)
Journal Article
Rachmeler, L., Platten, S., Bethge, C., Seaton, D., & Yeates, A. (2014). Observations of a hybrid double-streamer/pseudostreamer in the solar corona. Astrophysical Journal Letters, 787(1), https://doi.org/10.1088/2041-8205/787/1/l3

We report on the first observation of a single hybrid magnetic structure that contains both a pseudostreamer and a double streamer. This structure was originally observed by the SWAP instrument on board the PROBA2 satellite between 2013 May 5 and 10.... Read More about Observations of a hybrid double-streamer/pseudostreamer in the solar corona.

Nonparametric predictive inference for system reliability using the survival signature (2014)
Journal Article
Coolen, F., Coolen-Maturi, T., & Al-nefaiee, A. (2014). Nonparametric predictive inference for system reliability using the survival signature. Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability, 228(5), 437-448. https://doi.org/10.1177/1748006x14526390

The survival signature has recently been presented as an attractive concept to aid quantification of system reliability. It has similar characteristics as the system signature, which is well established, but contrary to the latter it is easily applic... Read More about Nonparametric predictive inference for system reliability using the survival signature.