讨论了Banach空间X,Y上的双线性泛函所成的空间B(X,Y)的凸性和光滑性与Banach空间X,Y凸性和光滑性的关系,并给出在双线性泛函的Hahn—Banach保范延拓定理和Riesz表示定理等。
The convexity and smoothness functional on Banach space X and Y are bilinear continuous functional are obtained. of Banach space B (X, Y), which studied. Hahn-Banach theorem and are all the bilinear continuous Riesz representation theorem of