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- Imperial College LondonGB129 papers
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39 papers · 1 filter
The prisoners dilemma on a stochastic non-growth network evolution model
Vasils Hatzopoulos, Henrik Jeldtoft Jensen
We investigate the evolution of cooperation on a non - growth network model with death/birth dynamics. Nodes reproduce under selection for higher payoffs in a prisoners dilemma gam…
Schwinger Representation for the Symmetric Group: Two explicit constructions for the Carrier Space
S. Chaturvedi, G. Marmo, N. Mukunda +1
We give two explicit construction for the carrier space for the Schwinger representation of the group . While the first relies on a class of functions consisting of monomials…
Cluster geometry and survival probability in systems driven by reaction-diffusion dynamics
Alastair L. Windus, Henrik Jeldtoft Jensen
We consider a reaction-diffusion model incorporating the reactions A -> 0, A -> 2A and 2A -> 3A. Depending on the relative rates for sexual and asexual reproduction of the quantity…
On T-Duality and Integrability for Strings on AdS Backgrounds
Riccardo Ricci, Arkady A. Tseytlin, Martin Wolf
We discuss an interplay between T-duality and integrability for certain classical non-linear sigma models. In particular, we consider strings on the AdS_5 x S^5 background and perf…
Supersymmetric Wilson loops on S^3
Nadav Drukker, Simone Giombi, Riccardo Ricci +1
This paper studies in great detail a family of supersymmetric Wilson loop operators in N=4 supersymmetric Yang-Mills theory we have recently found. For a generic curve on an S^3 in…
Pohlmeyer reduction of AdS_5 x S^5 superstring sigma model
M. Grigoriev, A. A. Tseytlin
Motivated by a desire to find a useful 2d Lorentz-invariant reformulation of the AdS_5 x S^5 superstring world-sheet theory in terms of physical degrees of freedom we construct the…