ar X iv : c on d - m at / 0 31 14 64 v 1 [ co nd - m at . s of t ] 1 9 N ov 2 00 3 Dynamics of nematic elastomers

ar X iv : c on d - m at / 0 31 14 64 v 2 [ co nd - m at . s of t ] 1 4 Fe b 20 04 Dynamics of nematic elastomers

We study the low-frequency, long-wavelength dynamics of soft and semi-soft nematic elastomers using two different but related dynamic theories. Our first formulation describes the pure hydrodynamic behavior of nematic elastomers in which the nematic director has relaxed to its equilibrium value in the presence of strain. We find that the sound-modes structure for soft elastomers is identical to...

ar X iv : c on d - m at / 0 20 91 97 v 1 [ co nd - m at . s up r - co n ] 9 S ep 2 00 2 Oxygen Phonon Branches

ar X iv : c on d - m at / 0 20 22 62 v 2 [ co nd - m at . s of t ] 1 9 Fe b 20 02 Phase Transitions in Lyotropic Nematic Gels

In this paper, we discuss the equilibrium phases and collapse transitions of a lyotropic nematic gel immersed in an isotropic solvent. A nematic gel consists of a cross-linked polymer network with rod-like molecules embedded in it. Upon decreasing the quality of the solvent, we find that a lyotropic nematic gel undergoes a discontinuous volume change accompanied by an isotropic-nematic transiti...

ar X iv : 1 10 8 . 05 81 v 3 [ co nd - m at . m tr l - sc i ] 2 9 N ov 2 01 1 Lattice dynamics of FeSb

N. Lazarević,1 M. M. Radonjić,2 D. Tanasković,2 Rongwei Hu∗,3 C. Petrovic,3 and Z. V. Popović1 Center for Solid State Physics and New Materials, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia Scientific Computing Laboratory, Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia Condensed Matter Physics and Ma...

ar X iv : 0 80 3 . 24 28 v 3 [ m at h . D S ] 1 9 N ov 2 00 8 Linearization of conservative toral homeomorphisms

We give an equivalent condition for the existence of a semi-conjugacy to an irrational rotation for conservative homeomorphisms of the two-torus. This leads to an analogue of Poincaré's classification of circle homeomorphisms for conservative toral homeomor-phisms with unique rotation vector and a certain bounded mean motion property. For minimal toral homeomorphisms, the result extends to arbi...