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It is clear that each maximal ideal in ring of continuous functions over $[0,1]\subset \mathbb R$ corresponds to a point and vice-versa. So, for each ideal $I$ define $Z(I) =$ {$x\in [0,1]$ | $f(x)=0, \forall f \in I$}. But map $I\to Z(I)$ from ideals to closed sets isn't injection! (Consider ideal $J(x_0)=${$f$|$f(x)=0, \forall x\in$ some closed interval which contains $x_0$}) How we can we describe ideals in C([0,1])? Is it true that prime ideal is maximal for this ring? |
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prime ideals in C([0,1])It is clear that each maximal ideal in ring of continuous functions over $[0,1]\subset \mathbb R$ corresponds to a point and vice-versa. So, for each ideal $I$ define $Z(I) =$ {$x\in [0,1]$ | $f(x)=0, \forall f \in I$}. But map $I\to Z(I)$ from ideals to closed sets isn't injection! (Consider ideal $J(x_0)=${$f$|$f(x)=0, \forall x\in$ some closed interval which contains $x_0$}) How we can describe ideals in C([0,1])? Is it true that prime ideal is maximal for this ring?
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