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July, 2014 The Bishop-Phelps-Bollobás property for bilinear forms and polynomials
María D. ACOSTA, Julio BECERRA-GUERRERO, Yun Sung CHOI, Domingo GARCÍA, Sun Kwang KIM, Han Ju LEE, Manuel MAESTRE
J. Math. Soc. Japan 66(3): 957-979 (July, 2014). DOI: 10.2969/jmsj/06630957


For a $\sigma$-finite measure $\mu$ and a Banach space $Y$ we study the Bishop-Phelps-Bollobás property (BPBP) for bilinear forms on $L_1(\mu)\times Y$, that is, a (continuous) bilinear form on $L_1(\mu)\times Y$ almost attaining its norm at $(f_0,y_0)$ can be approximated by bilinear forms attaining their norms at unit vectors close to $(f_0,y_0)$. In case that $Y$ is an Asplund space we characterize the Banach spaces $Y$ satisfying this property. We also exhibit some class of bilinear forms for which the BPBP does not hold, though the set of norm attaining bilinear forms in that class is dense.


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María D. ACOSTA. Julio BECERRA-GUERRERO. Yun Sung CHOI. Domingo GARCÍA. Sun Kwang KIM. Han Ju LEE. Manuel MAESTRE. "The Bishop-Phelps-Bollobás property for bilinear forms and polynomials." J. Math. Soc. Japan 66 (3) 957 - 979, July, 2014.


Published: July, 2014
First available in Project Euclid: 24 July 2014

zbMATH: 1293.32031
MathSciNet: MR3238324
Digital Object Identifier: 10.2969/jmsj/06630957

Primary: 46B20
Secondary: 46B22 , 46B25

Keywords: Banach space , bilinear form , Bishop-Phelps-Bollobás Theorem , norm attaining , polynomial

Rights: Copyright © 2014 Mathematical Society of Japan


Vol.66 • No. 3 • July, 2014
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