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Approximation of functions of two variables by the sum of two functions of one variable. (English) Zbl 0437.65039

Numerische Methoden der Approximationstheorie, Bd. 5, Tag. Oberwolfach 1979, ISNM Vol. 52, 117-124 (1980).

MSC:

65F35 Numerical computation of matrix norms, conditioning, scaling
05C20 Directed graphs (digraphs), tournaments
05C38 Paths and cycles
05C50 Graphs and linear algebra (matrices, eigenvalues, etc.)
45L05 Theoretical approximation of solutions to integral equations
41A45 Approximation by arbitrary linear expressions

Citations:

Zbl 0423.00016