Now showing items 123-142 of 190

    • On the equivariant K-homology of PSL_2 of the imaginary quadratic integers 

      Rahm, Alexander D. (Association des Annales de l'Institut Fourier, 2016-09)
      We establish formulae for the part due to torsion of the equivariant $K$-homology of all the Bianchi groups (PSL$_2$ of the imaginary quadratic integers), in terms of elementary number-theoretic quantities. To achieve this, ...
    • On the quiver presentation of the descent algebra of the symmetric group 

      Bishop, Marcus; Pfeiffer, Götz (Elsevier, 2013-03-18)
      We describe a presentation of the descent algebra of the symmetric group G(n) as a quiver with relations. This presentation arises from a new construction of the descent algebra as a homomorphic image of an algebra of ...
    • On the rectilinear shear of compressible and incompressible elastic slabs 

      Destrade, Michel (2010)
      We review some pseudo-planar deformations for the equations of incompressible isotropic nonlinear elasticity first introduced in 1985 by Rajagopal and Wineman. We extend this class of deformations to compressible isotropic ...
    • On the table of marks of a direct product of finite groups 

      Masterson, Brendan; Pfeiffer, Götz (Elsevier, 2017-12-28)
      We present a method for computing the table of marks of a direct product of finite groups. In contrast to the character table of a direct product of two finite groups, its table of marks is not simply the Kronecker product ...
    • On the third- and fourth-order constants of incompressible isotropic elasticity. 

      Destrade, Michel (Acoustical Society of America, 2010-04-25)
      Consider the constitutive law for an isotropic elastic solid with the strain-energy function expanded up to the fourth order in the strain and the stress up to the third order in the strain. The stress-strain relation can ...
    • On the Torus degeneration of the genus two partition function 

      Hurley, Donny; Tuite, Michael P. (World Scientific Publishing, 2013-07-16)
      We consider the partition function of a general vertex operator algebra V on a genus two Riemann surface formed by sewing together two tori. We consider the non-trivial degeneration limit where one torus is pinched down ...
    • Onset of non-linearity in the elastic bending of blocks 

      Destrade, Michel; Gilchrist, Michael D. (American Society of Mechanical Engineers, 2013-01-25)
      The classical flexure problem of non-linear incompressible elasticity is revisited assuming that the bending angle suffered by the block is specified instead of the usual applied moment. The general moment-bending angle ...
    • Phase behaviour of self-assembled monolayers controlled by tuning physisorbed and chemisorbed states: A lattice-model view 

      Cheung, David L. (American Institute of Physics, 2016-04-07)
      The self-assembly of molecules on surfaces into 2D structures is important for the bottom-up fabrication of functional nanomaterials, and the self-assembledstructure depends on the interplay between molecule-molecule ...
    • Piezoacoustic wave spectra using improved surface impedance matrix: Application to high impedance-contrast layered plates 

      Destrade, Michel (2008)
      Starting from the general modal solutions for a homogeneous layer of arbitrary material and crystalline symmetry, a matrix formalism is developed to establish the semianalytical expressions of the surface impedance matrices ...
    • Piezoelectric Love waves on rotated Y-cut mm2 substrates 

      Destrade, Michel (IEEE, 2006-11)
      Consider a layer consisting of a m3m dielectric crystal, with faces cut parallel to a symmetry plane. Then bond it onto a semi-infinite mm2 piezoelectric substrate. For an X- or Y-cut of the substrate, a Love wave can ...
    • Poynting effect of brain matter in torsion 

      Balbi, Valentina; Trotta, Antonia; Destrade, Michel; Annaidh, Aisling Ni (Royal Society of Chemistry, 2019-06-13)
      We investigate experimentally and model theoretically the mechanical behaviour of brain matter in torsion. Using a strain-controlled rheometer, we perform torsion tests on fresh porcine brain samples. We quantify the torque ...
    • Prescribing patterns in growing tubular soft matter by initial residual stress 

      Du, Yangkun; Lü, Chaofeng; Liu, Congshan; Han, Zilong; Li, Jian; Chen, Weiqiu; Qu, Shaoxing; Destrade, Michel (Royal Society of Chemistry, 2019-10-02)
      Initial residual stress is omnipresent in biological tissues and soft matter, and can affect growth-induced pattern selection significantly. Here we demonstrate this effect experimentally by letting soft tubes grow in the ...
    • Proper formulation of viscous dissipation for nonlinear waves in solids 

      Destrade, Michel (Acoustical Society of America, 2013-03)
      To model nonlinear viscous dissipative motions in solids, acoustical physicists usually add terms the material time derivative of the Lagrangian strain tensor E, to the elastic stress tensor; derived from the expansion to ...
    • A quiver presentation for Solomon's descent algebra 

      Pfeiffer, Götz (Elsvier, 2009)
      The descent algebra S(W) is a subalgebra of the group algebra of a finite Coxeter group W, which supports a homomorphism with nilpotent kernel and commutative image in the character ring of W. Thus S(W) is a basic algebra, ...
    • Rational Generalised Moonshine from Abelian Orbifoldings of the Moonshine Module 

      Ivanov, Rossen I.; Tuite, Michael P. (2001)
      We consider orbifoldings of the Moonshine Module with respect to the abelian group generated by a pair of commuting Monster group elements with one of prime order $p=2,3,5,7$ and the other of order $pk$ for $k=1$ or $k$ ...
    • Ray W Ogden: An Appreciation 

      Destrade, Michel; Dorfmann, Luis (SAGE Publications, 2015-07)
      This special issue of Mathematics and Mechanics of Solids is dedicated to Professor Ray Ogden FRS on the occasion of his 70th birthday. It is a companion volume to another special issue edited by our colleagues ...
    • Rayleigh waves and surface stability for Bell materials in compression; comparison with rubber 

      Destrade, Michel (Oxford University Press, 2003)
      The stability of a Bell-constrained half-space in compression is studied. To this end, the propagation of Rayleigh waves on the surface of the material when it is maintained in a static state of triaxial prestrain is ...
    • Rayleigh waves in symmetry planes of crystals : explicit secular equations and some explicit wave speeds 

      Destrade, Michel (Elsevier, 2003)
      Rayleigh waves are considered for crystals possessing at least one plane of symmetry. The secular equation is established explicitly for surface waves propagating in any direction of the plane of symmetry, using two different ...
    • Realizing a fusion system by a single finite group 

      Park, Sejong (2010)
      We show that every saturated fusion system can be realized as a full subcategory of the fusion system of a finite group. The result suggests the definition of an 'exoticity index' and raises some other questions which we discuss.
    • A refinement of a conjecture of Quillen 

      Rahm, Alexander D. (Elsevier ScienceDirect, 2015-09)
      We present some new results on the cohomology of a large scope of SL2 groups in degrees above the virtual cohomological dimension, yielding some partial positive results for the Quillen conjecture in rank one. We combine ...