198 citations · 364 across the 8 of their papers we have counts for
8 papers
Influence of a magnetic fluxon on the vacuum energy of quantum fields confined by a bag
S. Leseduarte, August Romeo
We study the simultaneous influence of boundary conditions and external fields on quantum fluctuations by considering vacuum zero-point energies for quantum fields in the presence…
Casimir energies for massive fields in the bag
M. Bordag, K. Kirsten, E. Elizalde +1
The Casimir energy corresponding to a massive scalar field with Dirichlet boundary conditions on a spherical bag is obtained. The field is considered, separately, inside and outsid…
Complete zeta-function approach to the electromagnetic Casimir effect for spheres and circles
S. Leseduarte, August Romeo
A technique for evaluating the electromagnetic Casimir energy in situations involving spherical or circular boundaries is presented. Zeta function regularization is unambiguously u…
Phase structure of renormalizable four-fermion models in spacetimes of constant curvature
E. Elizalde, S. Leseduarte, S. D. Odintsov +1
A number of 2d and 3d four-fermion models which are renormalizable ---in the expansion--- in a maximally symmetric constant curvature space, are investigated. To this purpose…
Higher Derivative Four-Fermion Model in Curved Spacetime
E. Elizalde, S. Leseduarte, S. D. Odintsov
We discuss the phase structure of a higher derivative four-fermion model in four dimensions in curved spacetime in frames of the -expansion. First, we evaluate in ou…
Components of the Stack of Torsion-Free Sheaves of Rank 2 on Ruled Surfaces
Charles H. Walter
Let S be a ruled surface without sections of negative self-intersection. We classify the irreducible components of the moduli stack of torsion-free sheaves of rank 2 sheaves on S.…