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Best analytic approximation of rational functions of degree 2
Author(s) -
Young N. J.
Publication year - 1991
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/rnc.4590010103
Subject(s) - degree (music) , rational function , mathematics , norm (philosophy) , function (biology) , pure mathematics , physics , evolutionary biology , political science , acoustics , law , biology
Let G be a rational function of degree 2. Explicit formulae are given for the distance from G to H ( k ) ∞in the L ∞ norm, k = 0, 1, and for the unique Ǧ ϵ H ( k ) ∞at which the distance is attained.
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