01034nam a2200313 i 450099100116368970753620020507184420.0940725s1985 de ||| | eng 354013638Xb10809570-39ule_instLE01308037ExLDip.to Matematicaeng511.4AMS 41-02AMS 41-XXQA221.P56Pinkus, Allan441824N-widths in approximation theory /Allan PinkusBerlin ; New York :Springer-Verlag,1985x, 290 p. ;25 cm.Bibliography: p. [277]-287.Includes index.Approximation theory.b1080957021-09-0628-06-02991001163689707536LE013 41-XX PIN11 (1984)12013000001456le013-E0.00-l- 00000.i1091479128-06-02N-Widths in approximation theory82687UNISALENTOle01301-01-94ma -engde 01