49 citations · 289 across the 45 of their papers we have counts for
3 papers · 1 filter
The supermembrane with central charges:(2+1)-D NCSYM, confinement and phase transition
L. Boulton, M. P. Garcia del Moral, A. Restuccia
The spectrum of the bosonic sector of the D=11 supermembrane with central charges is shown to be discrete and with finite multiplicities, hence containing a mass gap. The result ex…
Stability of Quadratic Projection Methods
Lyonell Boulton, Michael Strauss
In this paper we discuss the stability of an alternative pollution-free procedure for computing spectra. The main difference with the Galerkin method lies in the fact that it gives…
On Pseudospectra of Matrix Polynomials and their Boundaries
Lyonell Boulton, Peter Lancaster, Panayiotis Psarrakos
In the first part of this paper, the main concern is with smoothness properties of the boundary of the pseudospectrum of a matrix polynomial. In the second part, results are obtain…