Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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Browsing Mathemateg a Ffiseg / Mathematics & Physics by Title

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  • Title, Alan; Carolus, Thomas; Shine, Richard; Wolfson, C. Jacob; Nightingale, Richard; Schrijver, Carolus; Brown, Daniel; Alexander, David (2003)
    Recent observations from TRACE in the photospheric white light channel have shown sunspots that rotate up to 200° about their umbral centre over a period of 3-5 days. The corresponding loops in the coronal fan are often ...
  • Andreou, Christiana (Aberystwyth UniversityMathematical and Physical Sciences, 2013)
  • McDonough, Thomas P.; Mavron, V. C.; Tonchev, V. D. (2008-07-06)
    Rahilly [On the line structure of designs, Discrete Math. 92 (1991) 291–303] described a construction that relates any Hadamard design H on 4^m-1 points with a line spread to an affine design having the same parameters as ...
  • Köstler, Claus (2011-01-31)
    Inspired by Lehner's results on exchangeability systems in [Leh06] we define `weak conditional freeness' and `conditional freeness' for stationary processes in an operator algebraic framework of noncommutative probability. ...
  • Mavron, V. C.; McDonough, T. P.; Shrikhande, M. S. (2012-04)
    In a recent paper, Pawale [22] investigated quasi-symmetric 2-(v, k, lambda) designs with intersection numbers x > 0 and y = x + 2 with lambda > 1 and showed that under these conditions either lambda = x + 1 or lambda = x ...
  • Deriziotis, D.; Pallikaros, C. A.; McDonough, Thomas P. (2010)
    Given an involution z in W, where W is the symmetric group of degree n, we study the relation between the subsystems of a root system for W corresponding to certain decreasing subsequences of z and the two-sided Kazhdan–Lusztig ...
  • Gough, John Edward; Nurdin, H. I. (2012-11-28)
    Two standard operations of model reduction for quantum feedback networks, elimination of internal connections under the instantaneous feedback limit and adiabatic elimination of fast degrees of freedom, are cast as ...
  • Pallikaros, C. A.; McDonough, Thomas P. (2008-02-01)
    We study the relation between certain increasing and decreasing subsequences occurring in the row form of certain elements in the symmetric group, following Schensted [C. Schensted, Longest increasing and decreasing ...
  • Jones, Sian Angharad; Cox, Simon John (2012-04-04)
    A comprehensive set of experiments on a two-dimensional constriction flow of a foam are described. Image analysis of the flow is used to ascertain bubble shape and flow dynamics. The bubble velocity, elongation (texture), ...
  • Oechsner, Andreas; Gromada, Magdalena; Mishuris, Gennady (2011-09-06)
    This paper deals with analytical modelling of the classical tensile test which is still considered as one of the main experimental procedures to determine the flow curve of elasto-plastic materials. Accurate numerical ...
  • Iantchenko, A.; Jakubaßa-Amundsen, D. H. (2003-12)
    The Jansen-Heß operator is an approximate (pseudo-)relativistic no-pair Hamiltonian in the Furry picture which is used in the physics literature to describe heavy atoms. Within the single-particle Coulomb model we prove ...
  • Janiaud, Eric; Cox, Simon John (2008-09-01)
    Bubble monolayers are widely used to probe the rheology of aqueous foams, and liquid content plays an important role in the response. We analyse the liquid distribution within three different types of two-dimensional foam, ...
  • Kellett, B.; Dunkin, S. K.; Grande, Manuel (2001)
    Mercury is the little known innermost terrestrial planet. A number of significant questions remain unanswered. We describe areas in which a compact imaging X-ray spectrometer could make a valuable contribution. It can ...
  • Noakes, T. C. Q.; Bailey, P.; Jenkins, Tudor; Hayton, D. J. (2002-06)
    Medium energy ion scattering, Fourier transform infrared spectroscopy and spectroscopic ellipsometry measurements have been performed on thermally grown SiO2 layers on 4H silicon carbide. The data suggest the presence of ...
  • McGlynn, Andrew G. (Aberystwyth UniversityMathematical and Physical Sciences, 2010-02)
    This thesis reports upon synchrotron based luminescence studies of wide band gap semi-conductors and organic thin films. The optical and structural electronic properties of cubic and hexagonal boron nitride have been ...
  • Gough, John E. (World Scientific, 2008-11-12)
    We consider the problem of optimal feedback control of a quantum system with linear dynamics undergoing continual non-demolition measurement of position and/or momentum, or both together. Specically, we show that a stable ...
  • Banaszek, David (Aberystwyth UniversityMathematical and Physical Sciences, 2009)
    The linear viscoelastic material functions of complex fluids relate stress and strain when these assume sufficiently small values and are used to simulate fluid flow using more sophisticated constitutive equations in ...
  • Finlayson, Christopher Edward; Goddard, Chris; Papachristodoulou, Elpida; Snoswell, David R. E.; Kontogeorgos, Andreas; Spahn, Peter; Hellmann, G. Peter; Hess, Ortwin; Baumberg, Jeremy J. (2011)
    We demonstrate the production of high-quality polymer opal fibers in an industrially-scalable process. These fibers exhibit structural color, based on the self-assembly of sub-micron core-shell particles, with a spectrum ...
  • Wood, Ian; Geissert, Matthias; Heck, Horst; Hieber, Matthias (2005-12)
    Let Ω be an exterior domain in It is shown that Ornstein-Uhlenbeck operators L generate C0-semigroups on Lp(Ω) for p ∈ (1, ∞) provided ∂Ω is smooth. The method presented also allows to determine the domain D(L) of L and ...
  • Geissert, Matthias; Heck, Horst; Hieber, Matthias; Wood, Ian (Birkhäuser Basel, 2005)
    Let Ω be an exterior domain in It is shown that Ornstein-Uhlenbeck operators L generate C0-semigroups on Lp(Ω) for p ∈ (1, ∞) provided ∂Ω is smooth. The method presented also allows to determine the domain D(L) of L and ...

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