Zeros of quadratic functionals on non-separable spaces
We construct non-separable subspaces in the kernel of every quadratic functional on some classes of complex and real Banach spaces.
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T. Banakh, A. Plichko, A. Zagorodnyuk (2004)
Colloquium Mathematicae
We construct non-separable subspaces in the kernel of every quadratic functional on some classes of complex and real Banach spaces.
Günther Greiner (1981)
Mathematische Zeitschrift
Peter Meyer-Nieberg (1973)
Mathematische Zeitschrift
Rudolf Wegmann (1972)
Manuscripta mathematica
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