Definition:Compact-Open Topology
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Definition
Let $X$ and $Y$ be topological spaces.
Let $\map \CC {X, Y}$ be the set of continuous maps from $X$ to $Y$.
For all compact subsets $K \subset X$ and all open subsets $U \subset Y$, let:
- $\map V {K, U} = \set {f \in \map \CC {X, Y}: f \sqbrk K \subset U}$
Let:
- $\BB = \set {\map V {K, U}: K \subset X \text{ compact}, U \subset Y \text{ open} }$
The compact-open topology on $\map \CC {X, Y}$ is the topology generated by $\BB$.
Also see
- Compact-Open Topology is Topology which proves that this is in fact a topology.
Sources
- 2000: James R. Munkres: Topology (2nd ed.): $8$: Complete Metric Spaces and Function Spaces: $\S 46$: Pointwise and Compact Convergence