00971nam a2200265 i 450099100129878970753620020507114041.0950824s1974 us ||| | eng b10201178-39ule_instLE00645458ExLDip.to Fisicaita510.46510.65Singer, Ivan334747The theory of best approximation and functional analysis /Ivan SingerPhiladelphia :SIAM,c1974vii, 95 p. ;25 cm.Regional Conference Series in Applied Mathematics ;13Functional analysis.b1020117817-02-1727-06-02991001298789707536LE006 510.46+510.47 SIN12006000022439le006-E0.00-l- 00000.i1024882127-06-02Theory of best approximation and functional analysis81710UNISALENTOle00601-01-95ma -engus 41