2024/105/1-2 (13)
—
DOI: 10.5486/PMD.2024.9840
—
pp. 213-222
Norm-multiplicative mappings between spaces of vector-valued continuous functions
Abstract:
We extend the concept of norm-multiplicativity of a (not necessarily linear) mapping defined between spaces of scalar-valued continuous functions to the vector-valued setting, and prove that in this context norm-multiplicative surjective maps are composition in norm. We also provide several examples to emphasize the differences between isometries and norm-multiplicative maps.
Keywords: norm-multiplicative maps, vector-valued continuous functions, nonlinear norm preservers
Mathematics Subject Classification: 47B38, 46J10, 47B33

