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- Adjoint alternative (1)
- Adjoint range (1)
- Complex Hadamard matrix (1)
- Discrete polyhedral (1)
- Equidistant code words (1)
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- Error correcting codes (1)
- Haar spaces (1)
- Hadamard exponent (1)
- Linear and nonlinear codes (1)
- Lipschitz continuity (1)
- Magnetic field (1)
- Matrix operator (1)
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- Nonlinear problem (1)
- Range characterization (1)
- Red blood cell (1)
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- Stagnation point flow (1)
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Articles 1 - 6 of 6
Full-Text Articles in Physical Sciences and Mathematics
(A Note On)(2) The Shape Of The Erythrocyte, J. A. Adam
(A Note On)(2) The Shape Of The Erythrocyte, J. A. Adam
Mathematics & Statistics Faculty Publications
A note on the shape of the red blood cell is revisited, utilizing variational calculus to to find an extremum for the surface area of such a cell, using the volume as a constraint. A fairly significant error in the value of the volume is corrected, and the note concludes with a discussion of measures of cell shape (such as the sphericity index) which are more appropriate than the dimensional surface area to volume ratio.
The Adjoint Alternative For Matrix Operators, C. H. Cooke
The Adjoint Alternative For Matrix Operators, C. H. Cooke
Mathematics & Statistics Faculty Publications
The following inverse problem is considered: given a matrix B of rank r, does there exist a matrix A such that
B = T(A) = adjoint (A)
where the classical adjoint operation is intended? Conditions are determined on the rank of B which decides whether or not B lies in the range of the matrix adjoint operator.
Steady Incompressible Magnetohydrodynamic Flow Near A Point Of Reattachment, J. M. Dorrepaal, S. Moosavizadeh
Steady Incompressible Magnetohydrodynamic Flow Near A Point Of Reattachment, J. M. Dorrepaal, S. Moosavizadeh
Mathematics & Statistics Faculty Publications
The oblique stagnation-point flow of an electrically conducting fluid in the presence of a magnetic field is a highly nonlinear problem whose solution is of interest even in the simplest of geometries. The problem models the flow of a viscous conducting fluid near a point where a separation vortex reattaches itself to a rigid boundary. A similarity solution exists which reduces the problem to a coupled system of four ordinary differential equations which can be integrated numerically. The problem has two independent parameters, the conductivity of the fluid and the strength of the magnetic field. Solutions are tabulated for a …
Uniform Lipschitz Continuity Of Best L(P)-Approximations By Polyhedral Sets, Martina Finzel, Wu Li
Uniform Lipschitz Continuity Of Best L(P)-Approximations By Polyhedral Sets, Martina Finzel, Wu Li
Mathematics & Statistics Faculty Publications
In this paper we prove that the metric projection Πk, p onto a polyhedral subset K of ℝn, endowed with the p-norm, is uniformly Lipschitz continuous with respect to p,1 , p , ∞. As a consequence the strict best approximation and the natural best approximation are Lipschitz continuous selections for the metric projections Πk, ∞ and Πk,1, respectively. This extends a recent analogous result in Berens et al. [J.Math. Anal. Appl. 213 1997, 183-201] on linear subspaces.
Error Correcting Codes Associated With Complex Hadamard Matrices, I. Heng, C. H. Cooke
Error Correcting Codes Associated With Complex Hadamard Matrices, I. Heng, C. H. Cooke
Mathematics & Statistics Faculty Publications
For primes p > 2, the generalized Hadamard matrix H(p,pt) can be expressed as H = xA, where the notation means hij = xaij. It is shown that the row vectors of A represent a p-ary error correcting code. Depending upon the value of t, either linear or nonlinear codes emerge. Code words are equidistant and have minimum Hamming distance d = (p − 1)t. The code can be extended so as to possess N = p2t code words of length pt …
Characterization Of Generalized Haar Spaces, M. Bartelt, W. Li
Characterization Of Generalized Haar Spaces, M. Bartelt, W. Li
Mathematics & Statistics Faculty Publications
We say that a subset G of C0(T, ℝk) is rotation-invariant if [Qg: g ∈ G]=G for any k x k orthogonal matrix Q. Let G be a rotation-invariant finite-dimensional subspace of C0(T, ℝk) on a connected, locally compact, metric space T. We prove that G is a generalized Haar subspace if and only if PG(ƒ) is strongly unique of order 2 whenever PG(ƒ) is a singleton.