ar X iv : c on d - m at / 9 70 60 58 v 1 6 J un 1 99 7 Dynamics of Viscous Amphiphilic Films Supported by Elastic Solid Substrates

ar X iv : c on d - m at / 9 60 71 10 v 1 1 6 Ju l 1 99 6 Casimir effect around a screw dislocation

In this work, it is shown that a non-zero vacuum energy density (the Casimir energy) for a scalar field appears in a continuous elastic solid due to the presence of a topological defect, the screw dislocation. An exact expression is obtained for this energy density in terms of the Burgers vector describing the defect, for zero and finite temperature.

ar X iv : c on d - m at / 9 80 60 82 v 1 [ co nd - m at . m tr l - sc i ] 5 J un 1 99 8 Magnetic Particles

ar X iv : d g - ga / 9 70 60 06 v 1 6 J un 1 99 7 ON THE HOMOTOPY INVARIANCE OF L 2 TORSION FOR COVERING SPACES

We prove the homotopy invariance of L torsion for covering spaces, whenever the covering transformation group is either residually finite or amenable. In the case when the covering transformation group is residually finite and when the L cohomology of the covering space vanishes, the homotopy invariance was established by Lück [Lu]. We also give some applications of our results.

ar X iv : c on d - m at / 9 60 71 43 v 1 2 1 Ju l 1 99 6 Spreading of molecularly thin wetting films on solid interfaces

In this paper we study kinetics of spreading of thin liquid films on solid interfaces. We present an overview of current experimental picture and discuss available theoretical approaches and their limitations. We report some new experimental results on spreading of molecularly thin liquid films and propose an analytically solvable microscopic model, which reproduces experimentally observed beha...

ar X iv : c on d - m at / 9 60 31 90 v 1 2 9 M ar 1 99 6 The Four - Dimensional XY Spin Glass