## Marian Nowak, Aleksandra Rzepka

*Locally solid topologies on spaces of vector-valued continuous functions *

Comment.Math.Univ.Carolinae 43,3 (2002) 473-483. **Abstract:**Let $X$ be a completely regular Hausdorff space and $E$ a real normed space. We examine the general properties of locally solid topologies on the space $C_b(X,E)$ of all $E$-valued continuous and bounded functions from $X$ into $E$. The mutual relationship between locally solid topologies on $C_b(X,E)$ and $C_b(X)$ $(=C_b(X,\Bbb R))$ is considered. In particular, the mutual relationship between strict topologies on $C_b(X)$ and $C_b(X,E)$ is established. It is shown that the strict topology $\beta _\sigma (X,E)$ (respectively $\beta _\tau (X,E)$) is the finest $\sigma $-Dini topology (respectively Dini topology) on $C_b(X,E)$. A characterization of $\sigma $-Dini and Dini topologies on $C_b(X,E)$ in terms of their topological duals is given.

**Keywords:** vector-valued continuous functions, strict topologies, locally solid topologies, Dini topologies

**AMS Subject Classification:** 47A70, 46E05, 46E10

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