Compact perturbations of Fredholm n-tuples
postscript version , pdf version
Compact perturbations of Fredholm n-tuples, II,
postscript version,pdf version
Rings with topologies induced by spaces of functions
postscript version,
pdf version
Topological Hilbert Nullstellensatz for Bergman spaces
postscript version, pdf version
Skein modules and the noncommutative torus, joint with Charles Frohman,
postscript version, pdf version. Although this is
rather a topology paper, certain aspects of it might be interesting for
operator theorists.