output
19942026
most citedGATE : a simulation toolkit for PET and SPECT

2.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2002Show all

11 papers · 1 filter

nlin.SI2002★ 2 cited

Pseudo-potentials, nonlocal symmetries and integrability of some shallow water equations

Enrique G. Reyes

Zero curvature formulations, pseudo-potentials, modified versions, ``Miura transformations'', and nonlocal symmetries of the Korteweg--de Vries, Camassa-- Holm and Hunter--Saxton e…

hep-th2002

Algebra of chiral currents on the physical surface

Alexis Amezaga, Carlos Leiva

Using a particular structure for the Lagrangian action in a one-dimensional Thirring model and performing the Dirac's procedure, we are able to obtain the algebra for chiral curren…

hep-th2002★ 18 cited

Dolan-Grady Relations and Noncommutative Quasi-Exactly Solvable Systems

Sergey M. Klishevich, Mikhail S. Plyushchay

We investigate a U(1) gauge invariant quantum mechanical system on a 2D noncommutative space with coordinates generating a generalized deformed oscillator algebra. The Hamiltonian…

hep-ph2002★ 11 cited

Chern-Simons-fermion model of quarks

Ernesto A. Matute

We propose an extension of the standard model where quarks are viewed as fermions with a ``bare'' integer (weak) hypercharge which is normalized with a fractional part created by a…

gr-qc2002★ 86 cited

Hydrostatic Equilibrium of a Perfect Fluid Sphere with Exterior Higher-Dimensional Schwarzschild Spacetime

J. Ponce de Leon, Norman Cruz

We discuss the question of how the number of dimensions of space and time can influence the equilibrium configurations of stars. We find that dimensionality does increase the effec…

hep-th2002★ 91 cited

Noncommutativity in Field Space and Lorentz Invariance Violation

J. M. Carmona, J. L. Cortes, J. Gamboa +1

The connection between Lorentz invariance violation and noncommutativity of fields in a quantum field theory is investigated. A new dispersion relation for a free field theory with…

cond-mat.mtrl-sci2002★ 12 cited

The role of the alloy structure in the magnetic behavior of granular systems

C. S. M. Bastos, M. Bahiana, W. C. Nunes +4

The effect of grain size, easy magnetization axis and anisotropy constant distributions in the irreversible magnetic behavior of granular alloys is considered. A simulated granular…

cond-mat.stat-mech2002★ 56 cited

Phase diagram of self-attracting systems

P. H. Chavanis, I. Ispolatov

Phase diagram of microcanonical ensembles of self-attracting particles is studied for two types of short-range potential regularizations: self-gravitating fermions and classical pa…

hep-th2002★ 125 cited

Testing spatial noncommutativiy via the Aharonov-Bohm effect

H. Falomir, J. Gamboa, M. Loewe +2

The possibility of detecting noncommutative space relics is analyzed using the Aharonov-Bohm effect. We show that, if space is noncommutative, the holonomy receives non-trivial kin…

hep-th2002★ 18 cited

Nonlinear Holomorphic Supersymmetry on Riemann Surfaces

Sergey M. Klishevich, Mikhail S. Plyushchay

We investigate the nonlinear holomorphic supersymmetry for quantum-mechanical systems on Riemann surfaces subjected to an external magnetic field. The realization is shown to be po…

hep-th2002★ 78 cited

Non-relativistic anyons, exotic Galilean symmetry and noncommutative plane

Peter A. Horvathy, Mikhail S. Plyushchay

We show that the Lukierski et al. model, invariant with respect to the two-fold centrally extended Galilei group, can be decomposed into an infinite number of independent copies (d…