538 citations
- University of EdinburghGB577 papers
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- Centre National de la Recherche ScientifiqueFR30 papers
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- Imperial College LondonGB24 papers
- KTH Royal Institute of TechnologySE22 papers
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- Leibniz University HannoverDE20 papers
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70 papers · 1 filter
Action constrained quasi-Newton methods
Robert Mansel Gower, Jacek Gondzio
At the heart of Newton based optimization methods is a sequence of symmetric linear systems. Each consecutive system in this sequence is similar to the next, so solving them separa…
Direct control of the small-scale energy balance in 2D fluid dynamics
Jason Frank, Benedict Leimkuhler, Keith Myerscough
We explore the direct modification of the pseudo-spectral truncation of 2D, incompressible fluid dynamics to maintain a prescribed kinetic energy spectrum. The method provides a me…
Time evolution in a geometric model of a particle
Michael Atiyah, Guido Franchetti, Bernd Schroers
We analyse the properties of a (4+1)-dimensional Ricci-flat spacetime which may be viewed as an evolving Taub-NUT geometry, and give exact solutions of the Maxwell and gauged Dirac…
Bootstrapping Fuzzy Scalar Field Theory
Christian Saemann
We describe a new way of rewriting the partition function of scalar field theory on fuzzy complex projective spaces as a solvable multitrace matrix model. This model is given as a…
Planar ordering in the plaquette-only gonihedric Ising model
Marco Mueller, Wolfhard Janke, Desmond A. Johnston
In this paper we conduct a careful multicanonical simulation of the isotropic plaquette ("gonihedric") Ising model and confirm that a planar, fuki-nuke type order characterise…
The inefficiency of satellite accretion in forming extended star clusters
Paolo Bianchini, Florent Renaud, Mark Gieles +1
The distinction between globular clusters and dwarf galaxies has been progressively blurred by the recent discoveries of several extended star clusters, with size (20-30 pc) and lu…