Buscar
Mostrando ítems 1-10 de 103
Bifundamental fuzzy 2-Sphere and fuzzy killing spinors
(2010-12-01)
We review our construction of a bifundamental version of the fuzzy 2-sphere and its relation to fuzzy Killing spinors, first obtained in the context of the ABJM membrane model. This is shown to be completely equivalent to ...
Horo-tight spheres in hyperbolic space
(SPRINGER, 2011)
We study horo-tight immersions of manifolds into hyperbolic spaces. The main result gives several characterizations of horo-tightness of spheres, answering a question proposed by Cecil and Ryan. For instance, we prove that ...
Blakers-Massey elements and exotic diffeomorphisms of S-6 and S-14 via geodesics
(Amer Mathematical SocProvidenceEUA, 2004)
A new number field construction of the lattice E8
(2013-10-01)
Known number theoretical constructions of the lattice E8 use the cyclotomic fields Q(ζ15), Q(ζ20), and Q(ζ24). In this work, an infinite family of Abelian number fields yielding rotated versions of the lattice E 8 is ...
A family of asymptotically good lattices having a lattice in each dimension
(World Scientific Publ Co Pte Ltd, 2008-02-01)
A new constructive family of asymptotically good lattices with respect to sphere packing density is presented. The family has a lattice in every dimension n >= 1. Each lattice is obtained from a conveniently chosen integral ...
Two matrix-based lattice construction techniques
(2013-04-01)
Let m and n be integers greater than 1. Given lattices A and B of dimensions m and n, respectively, a technique for constructing a lattice from them of dimension m+n-1 is introduced. Furthermore, if A and B possess bases ...
Equivariant homotopy and deformations of diffeomorphisms
(Elsevier Science BvAmsterdamHolanda, 2009)
A combined experimental and numerical approach to the assessment of floc settling velocity using fractal geometry
(2020-03-01)
Sedimentation processes are fundamental to solids/liquid separation in water and wastewater treatment, and therefore a robust understanding of the settlement characteristics of mass fractal aggregates (flocs) formed in the ...
The classification and the conjugacy classes of the finite subgroups of the sphere braid groups
(GEOMETRY & TOPOLOGY PUBLICATIONS, 2008)
Let n >= 3. We classify the finite groups which are realised as subgroups of the sphere braid group B(n)(S(2)). Such groups must be of cohomological period 2 or 4. Depending on the value of n, we show that the following ...