Open Access Repositories: Recent submissions

Now showing items 1201-1220 of 4204

  • Bounds on the Number of Measurements for Reliable Compressive Classification 

    Reboredo, H; Renna, Francesco; Calderbank, R; Rodrigues, MRD (IEEEIEEE Transactions on Signal Processing, 2016-11-15)
    This paper studies the classification of high-dimensional Gaussian signals from low-dimensional noisy, linear measurements. In particular, it provides upper bounds (sufficient conditions) on the number of measurements ...

  • Risk and Uncertainty Communication 

    Spiegelhalter, David John (Annual ReviewsAnnual Review of Statistics and its Application, 2017-03-07)
    This review briefly examines the vast range of techniques used to communicate risk assessments arising from statistical analysis. After discussing essential psychological and sociological issues, I focus on individual ...

  • Arithmetic invariant theory and 2-descent for plane quartic curves 

    Thorne, Jack Arfon (Mathematical Sciences PublishersAlgebra & Number Theory, 2016-09-27)
    Given a smooth plane quartic curve C over a field $\textit{k}$ of characteristic 0, with Jacobian variety $\textit{J}$, and a marked rational point P $\in$ C($\textit{k}$), we construct a reductive group $\textit{G}$ and ...

  • Envelopes of positive metrics with prescribed singularities 

    Ross, Julius; Nyström, David Witt (Université Paul Sabatier, ToulouseAnnales de la Faculté des Sciences de Toulouse, 2016)
    We investigate envelopes of positive metrics with a prescribed singularity type. First we generalise work of Berman to this setting, proving C$^{1,1}$ regularity of such envelopes, showing their Monge-Ampère measure is ...

  • Turbulent mixing due to the Holmboe wave instability at high Reynolds number 

    Salehipour, Hesam; Caulfield, Colm-cille Patrick; Peltier, WR (Cambridge University PressJournal of Fluid Mechanics, 2016)
    We consider numerically the transition to turbulence and associated mixing in stratified shear flows with initial velocity distribution $\bar U$(z, 0)e$_{x}$ = U$_{0}$e$_{x}$ tanh(z/d) and initial density distribution $\bar ...

  • Cosmological solutions of $\small \textit{f(T)}$ gravity 

    Paliathanasis, Andronikos; Barrow, John David; Leach, PGL (American Physical SocietyPhysical Review D, 2016-07-28)
    In the cosmological scenario in $\small \textit{f(T)}$ gravity, we find analytical solutions for an isotropic and homogeneous universe containing a dust fluid and radiation and for an empty anisotropic Bianchi I universe. ...

  • On the $\phi$-Selmer groups of the elliptic curves y$^2$ = x$^3$ - Dx 

    Kane, Daniel M; Thorne, Jack Arfon (Cambridge University PressMathematical Proceedings of the Cambridge Philosophical Society, 2016-09-09)
    We study the variation of the $\phi$-Selmer groups of the elliptic curves y$^2$ = x$^3$ − Dx under quartic twists by square-free integers. We obtain a complete description of the distribution of the size of this group when ...

  • An Analytic Solution for Gust-Aerofoil Interaction Noise Including Effects of Geometry 

    Ayton, Lorna Jane (Oxford University PressIMA Journal of Applied Mathematics, 2016)
    An analytic solution is obtained for the sound generated by gust-aerofoil interaction for aerofoils with thickness, camber, and angle of attack. The model is based on the linearisation of the Euler equations about a steady ...

  • Automatic Inference of Code Transforms and Search Spaces for Automatic Patch Generation Systems 

    Unknown author (2016-07-08)
    We present a new system, Genesis, that processes sets of human patches to automatically infer code transforms and search spaces for automatic patch generation. We present results that characterize the effectiveness of the ...

  • Improving the usability of the hierarchical file system 

    Marsden, G (South African Institute of Computer Scientists and Information TechnologistsUniversity of Cape TownFaculty of ScienceDepartment of Computer Science, 2004)
    Whether you are interested in improving the usability of Linux, Macintosh or Windows, there is one restriction you cannot escape - the hierarchical file storage system. The notion of files and folders has been with us for ...

  • An introduction to applications of wavelet benchmarking with seasonal adjustment 

    Sayal, Homesh; Aston, John A. D.; Elliott, Duncan (WileyJournal of the Royal Statistical Society: Series A (Statistics in Society), 2016-11-05)
    Before adjustment, low and high frequency data sets from national accounts are frequently inconsistent. Benchmarking is the procedure used by economic agencies to make such data sets consistent. It typically involves ...

  • Near-wall diffusion tensor of an axisymmetric colloidal particle 

    Lisicki, M; Cichocki, Bogdan; Wajnryb, Eligiusz (AIPJournal of Chemical Physics, 2016-07-20)
    Hydrodynamic interactions with confining boundaries often lead to drastic changes in the diffusive behaviour of microparticles in suspensions. For axially symmetric particles, earlier numerical studies have suggested a ...

  • Automorphy of some residually S$_5$ Galois representations 

    Khare, Chandrashekhar B.; Thorne, Jack A. (SpringerMathematische Zeitschrift, 2016)
    Let $\textit{F}$ be a totally real field and $\textit{p}$ an odd prime. We prove an automorphy lifting theorem for geometric representations $\rho$ : $\textit{G}_F$ → GL$_2$($\bar{\Bbb Q}_p$) which lift irreducible residual ...

  • On the orbital evolution of a pair of giant planets in mean motion resonance 

    André, Q; Papaloizou, John Christopher (Oxford University PressMonthly Notices of the Royal Astronomical Society, 2016-07-04)
    Pairs of extrasolar giant planets in a mean motion commensurability are common with 2:1 resonance occurring most frequently. Disc–planet interaction provides a mechanism for their origin. However, the time-scale on which ...

  • Near-wall diffusion tensor of an axisymmetric colloidal particle 

    Lisicki, Maciej Krzysztof; Cichocki, B; Wajnryb, E (American Institute of Physics PublishingThe Journal of Chemical Physics, 2016-07-21)
    Hydrodynamic interactions with confining boundaries often lead to drastic changes in the diffusive behaviour of microparticles in suspensions. For axially symmetric particles, earlier numerical studies have suggested a ...

  • Particle organization after viscous sedimentation in tilted containers 

    Palma, Sergio; Ihle, Christian F; Tamburrino, Aldo; Dalziel, Stuart Bruce (American Institute of PhysicsPhysics of Fluids, 2016-07-19)
    A series of sedimentation experiments and numerical simulations have been conducted to understand the factors that control the final angle of a static sediment layer formed by quasi-monodisperse particles settling in an ...

  • Volume preservation by Runge–Kutta methods 

    Bader, Philipp; McLaren, David I.; Quispel, G. R. W.; Webb, Marcus (ElsevierApplied Numerical Mathematics, 2016-07-12)
    It is a classical theorem of Liouville that Hamiltonian systems preserve volume in phase space. Any symplectic Runge–Kutta method will respect this property for such systems, but it has been shown by Iserles, Quispel and ...

  • Evaluating Caching Mechanisms In Future Internet Architectures 

    Unknown author (2016-06-28)
    This thesis seeks to test and evaluate the effects of in-­network storage in novel proposed Internet architectures in terms of their performance. In a world where more and more people are mobile and connected to the Internet, ...

  • Modeling Network User Behavior: Various Approaches 

    Unknown author (2016-06-28)
    This project involves learning to predict users' mobility within the network topology. Topological mobility, as opposed to physical mobility, can be substantial as a user switches from LTE to wifi network, while moving ...

  • The augmented base locus of real divisors over arbitrary fields 

    Birkar, Caucher (SpringerMathematische Annalen, 2016-07-08)
    We show that the augmented base locus coincides with the exceptional locus (i.e., null locus) for any nef $\Bbb R$-Cartier divisor on any scheme projective over a field (of any characteristic). Next we prove a semi-ampleness ...