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- National and Kapodistrian University of AthensGR62 papers
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Showing 2005Show all
3 papers · 1 filter
math-ph2005
Volterra's realization of the KM-system
M. A. Agrotis, P. A. Damianou
We construct a symplectic realization of the KM-system and obtain the higher order Poisson tensors and commuting flows via the use of a recursion operator. This is achieved by doub…
hep-lat2005★ 1 cited
The volume dependence of spectral weights and the pentaquark state
Constantia Alexandrou, Antonios Tsapalis
Before studying the pentaquark system we examine the spectral weights of the two lowest scattering states in the two-pion system in the isospin I=2 channel on lattices of size $16^…
hep-lat2005
Topological charge renormalization: A test case for 3-loop vacuum calculations using overlap fermions and Symanzik improved gluons
A. Skouroupathis, H. Panagopoulos
We calculate perturbative renormalization properties of the topological charge, using the standard lattice discretization given by a product of twisted plaquettes. We use the overl…