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A New Mathematical Model to Index Body Weight in Healthy Chinese Han Adults. [PDF]

open access: yesMedComm (2020)
Zhang Q   +7 more
europepmc   +1 more source

Nonsymmetric Difference Equations

Journal of the Society for Industrial and Applied Mathematics, 1965
The purpose of this paper is to discuss several nonsymmetric difference equations. By this we mean that not all points are calculated by the same equation. Proofs of convergence will attempt to follow the methods of Richtmyer [4]. Nonsymmetric difference equations are well known at the present time. The Peaceman-Rachford alternating implicit scheme [3]
openaire   +2 more sources

Partial Differential Equations and Difference Equations

Proceedings of the American Mathematical Society, 1965
(1. 1) Pi(alax)y = ? (1 _ i _ m) where x = (x1, * , xn), a/ax = (a/ax1, *, O/0xn). The Pi's are assumed to be homogeneous polynomials with real coefficients. The term solution is used to include the generalized solutions. A generalized solution is any function continuous on R which is a uniform limit on compact subsets of CX solutions (see [2, p. 65]).
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Difference Equations

The Mathematics Teacher, 1988
Much talk is heard these days about the importance of including topics from discrete mathematics in our secondary mathematics curriculum. They are characterized by their treatment of discrete quantities rather than continuous quantities and limit processes.
openaire   +1 more source

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