Let us consider the following spacespaces $C_\infty(E), C_c(E), C_b(E)$ how to find the dual space$C_\infty(E)$, $C^*_\infty(E), C^*_c(E), C^*_b(E)$. Where$C_c(E)$, $C_b(E)$, where $E$ is locally compact., $C_\infty(E)$ is all continuous functions vanishedvanishing at the endends of $E$. , $C_c(E)$ is all the continuous functions with compact support and $C_b(E)$ is all the bounded continuous functions. How do we find the dual spaces $C^*_\infty(E)$, $C^*_c(E)$, $C^*_b(E)$.
For $C_\infty^*$, I have a naivenaïve idea but I am not sure it is correct?. We know that functions in $C_\infty$ are almost to the normal distribution $\delta_{E_i}(x), i \in \mathbb{N}$$\delta_{E_i}(x)$, $i \in \mathbb{N}$. In some sense this kind of function is the basics of $C_\infty$. Using the RizseRiesz representation we get the functional $l$ has the following representation $l(f(x))=\int f(x)\mu(dx)$. Plug in $\delta_{E_i}(x), i \in \mathbb{N}$$\delta_{E_i}(x)$, $i \in \mathbb{N}$. We get the following $ l(f(x))=\sum_{i}^N \delta(x)\mu(E_i)$. Then $C_\infty^*=\overline{\{\sum_{i}^N \delta(x)\mu(E_i)\}}$, the linear span of sign measure. Is this correct? If it is correct, how to get the another two dual space $ C^*_c(E), C^*_b(E)$$ C^*_c(E)$, $C^*_b(E)$? If it is not? Can, can someone give me some idea or reference to calculate the dual spacespaces $C^*_\infty(E), C^*_c(E), C^*_b(E)$$C^*_\infty(E)$, $C^*_c(E)$, $C^*_b(E)$?