Ioannis K. Argyros, "Remarks on quadratic equations in Banach space", International Journal of Mathematics and Mathematical Sciences, vol. 13, Article ID 735632, 6 pages, 1990. https://doi.org/10.1155/S0161171290000850
Remarks on quadratic equations in Banach space
We find new sufficient conditions for the uniqueness of solutions of quadratic and in general multilinear equations in a Banach space , by assuming the existence of a certain limit of linear operators in a suitable subspace of .
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