Now showing items 1-20 of 141

  • Accessing the cohomology of discrete groups above their virtual cohomological dimension 

    Rahm, Alexander D. (2014)
    We introduce a method to explicitly determine the Farrell-Tate cohomology of discrete groups. We apply this method to the Coxeter triangle and tetrahedral groups as well as to the Bianchi groups, i.e. PSL_2 over the ring ...
  • Acoustic waves at the interface of a pre-stressed incompressible elastic solid and a viscous fluid 

    Destrade, Michel (Elsevier, 2006-11-10)
    We analyse the influence of pre-stress on the propagation of interfacial waves along the boundary of an incompressible hyperelastic half-space that is in contact with a viscous fluid extending to infinity in the adjoining ...
  • Analogues of Goldschmidt's thesis for fusion systems 

    Park, Sejong (Elsevier, 2010-12-15)
    We extend the results of David Goldschmidt's thesis concerning fusion in finite groups to saturated fusion systems and to all primes.
  • Asymptotic results for bifurcations in pure bending of rubber blocks 

    Destrade, Michel (Oxford Journals, 2008-03)
    The bifurcation of an incompressible neo-Hookean thick block with a ratio of thickness to length n, subject to pure bending, is considered. The two incremental equilibrium equations corresponding to a nonlinear pre-buckling ...
  • Automated estimation of collagen fibre dispersion in the dermis and its contribution to the anisotropic behaviour of skin 

    Ní Annaidh, Aisling; Destrade, Michel; Gilchrist, Michael D. (Springer, 2012-08)
    Collagen fibres play an important role in the mechanical behaviour of many soft tissues. Modelling of such tissues now often incorporates a collagen fibre distribution. However, the availability of accurate structural data ...
  • Bending instabilities of soft biological tissues 

    Destrade, Michel; Ní Annaidh, Aisling (Elsevier, 2009-12-15)
    Rubber components and soft biological tissues are often subjected to large bending deformations while 'in service'. The circumferential line elements on the inner face of a bent block can contract up to a certain critical ...
  • Bimodular rubber buckles early in bending 

    Destrade, Michel; Gilchrist, Michael D.; Motherway, Julie A. (Elsevier, 2009-12-03)
    A block of rubber eventually buckles under severe flexure, and several axial wrinkles appear on the inner curved face of the bent block. Experimental measurements reveal that the buckling occurs earlier - at lower compressive ...
  • Bleustein-Gulyaev waves in some functionally graded materials 

    Destrade, Michel (Elsevier, 2006-02-28)
    Functionally Graded Materials are inhomogeneous elastic bodies whose properties vary continuously with space. Hence consider a half-space (x2>0) occupied by a special Functionally Graded Material made of an hexagonal (6 ...
  • The bosonic vertex operator algebra on a genus g Riemann surface 

    Tuite, Michael P.; Zuevsky, Alexander (2011-08)
    We discuss the partition function for the Heisenberg vertex operator algebra on a genus g Riemann surface formed by sewing handles to a Riemann sphere. In particular, it is shown how the partition can be computed by means ...
  • A census of human soluble protein complexes 

    Yang, Haixuan (Elsevier, 2012-08-11)
    Cellular processes often depend on stable physical associations between proteins. Despite recent progress, knowledge of the composition of human protein complexes remains limited. To close this gap, we applied an integrative ...
  • Characterising the anisotropic mechanical properties of excised human skin 

    Ní Annaidh, Aisling; Destrade, Michel; Gilchrist, Michael D. (2012)
    The mechanical properties of skin are important for a number of applications including surgery, dermatology, impact biomechanics and forensic science. In this study, we have investigated the influence of location and ...
  • Characteristic classes of complexified bundles 

    Rahm, Alexander D. (Summer School in Algebraic Topology: Sheaf theoretic methods in the theory of characteristic classes, 2007)
    We examine the topological characteristic cohomology classes of complexified vector bundles . In particular, all the classes coming from real vector bundles are computed. We use characteristic classes with the ax-ioms of ...
  • Circularly-polarized plane waves in a deformed Hadamard material 

    Destrade, Michel (Elsevier, 2001-10-31)
    Small-amplitude inhomogeneous plane waves propagating in any direction in a homogeneously deformed Hadamard material are considered. Conditions for circular polarization are established. The analysis relies on the use of ...
  • (Co)homologies et K-théorie de groupes de Bianchi par des modèles géométriques calculatoires 

    Rahm, Alexander D. (Université de Grenoble / Universität Göttingen, 2010-10-15)
    Cette thèse consiste d'une étude de la géométrie d'une certaine classe de groupes arithmétiques, à travers d'une action propre sur un espace contractile. Nous calculons explicitement leur homologie de groupe, et leur ...
  • Compact travelling waves in viscoelastic solids 

    Destrade, Michel (IOP Science, 2009-09-02)
    We introduce a model for nonlinear viscoelastic solids, for which travelling shear waves with compact support are possible. Using analytical and numerical methods, we investigate the general case of this model, and an ...
  • Complexifiable characteristic classes 

    Rahm, Alexander D. (Springer, 2014-01)
    We examine the topological characteristic cohomology classes of complexified vector bundles. In particular, all the classes coming from the real vector bundles underlying the complexification are determined.
  • Complexifiable characteristic classes 

    Rahm, Alexander D. (2013)
  • Compression instabilities of tissues with localized strain softening. 

    Destrade, Michel (World Scientific Publishing Company, 2010-09-27)
    The stress-strain relationship of biological soft tissues affected by Marfan's syndrome is believed to be nonconvex. More specifically, Haughton and Merodio recently proposed a strain energy density leading to localized ...
  • Creep, recovery, and waves in a nonlinear fiber-reinforced viscoelastic solid 

    Destrade, Michel (Society for Industrial and Applied Mathematics, 2007-10-10)
    We present a constitutive model capturing some of the experimentally observed features of soft biological tissues: nonlinear viscoelasticity, nonlinear elastic anisotropy, and nonlinear viscous anisotropy. For this model ...
  • Determination of friction coefficient in unconfined compression of brain tissue 

    Rashid, Badar; Destrade, Michel; Gilchrist, Michael (Elsevier, 2012-10)
    Unconfined compression tests are more convenient to perform on cylindrical samples of brain tissue than tensile tests in order to estimate mechanical properties of the brain tissue because they allow for homogeneous ...