The second problem arises for differential operators, particularly in several space dimensions, when the matrix approximations have very high dimensions. Even if A has a sparse matrix, Tt generally has a full matrix, so storing the matrix entries is not feasible. The obvious solution is to find a subspace of relatively small dimension which contains most information of interest. One might try t...

Human skin, the outer and largest organ covering our body, can be described in terms of both its 3D spatial topography and its 2D spectral reflectance. Such a characterization normally requires the application of separate procedures using different kinds of equipment, where spectral reflectance can only be obtained from a small patch of the skin surface. This paper investigates the integration ...

Natural sounds can be characterised by their spectral content and temporal modulation, but how the brain is organized to analyse these two critical sound dimensions remains uncertain. Using functional magnetic resonance imaging, we demonstrate a topographical representation of amplitude modulation rate in the auditory cortex of awake macaques. The representation of this temporal dimension is or...

The Open University's repository of research publications and other research outputs Spectral and diffusive properties of silver-mean quasicrystals in one, two, and three dimensions Journal Article (2005). Spectral and diffusive properties of silver-mean quasicrystals in one, two, and three dimensions. Physical Review B, 72(5) 054203. For guidance on citations see FAQs. c [not recorded] Version...