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  • 1
    Electronic Resource
    Electronic Resource
    A WELL-CONDITIONED MATRIX FOR (kuX)X WITH DISCONTINUOUS k (1996)
    Chichester [u.a.] : Wiley-Blackwell
    International Journal for Numerical Methods in Engineering 39 (1996), S. 3663-3677 
    Details
    ISSN: 0029-5981
    Keywords: matrix condition ; heat equation ; discontinuous coefficients ; error stability ; Engineering ; Engineering General
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mathematics , Technology
    Notes: The traditional tridiagonal matrix approximating the one-dimensional heat equation is ill-conditioned when heat conductivity changes radically. An algebraic reformulation of the tridiagonal produces a well-conditioned matrix. Additional variables are rates q=-kux at interfaces between radical changes in k. A reduced matrix amounts to a coarse approximation.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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