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Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on the Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi\; \text{is continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,1]$.

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non-zero index?

For a linked MSE question see this MSE postsee this MSE post.

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on the Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi\; \text{is continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,1]$.

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non-zero index?

For a linked MSE question see this MSE post.

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on the Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi\; \text{is continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,1]$.

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non-zero index?

For a linked MSE question see this MSE post.

Continuous maps on compact topological spaces which induce compact  (Fredholm) operatoresoperators

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linearlinear operator  $T_{f}$ on the Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi \; is \;\;\; \text{continuous}\}$$C(X)=\{\phi:X\to \mathbb{C} \mid \phi\; \text{is continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,\;1]$$X=[0,1]$.

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non zero-zero index?

For a linked MSE question see this MSE post.

Continuous maps on compact topological spaces which induce compact(Fredholm) operatores

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator  $T_{f}$ on Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi \; is \;\;\; \text{continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,\;1]$

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non zero index?

For a linked MSE question see this MSE post

Continuous maps on compact topological spaces which induce compact  (Fredholm) operators

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on the Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi\; \text{is continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,1]$.

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non-zero index?

For a linked MSE question see this MSE post.

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Ali Taghavi
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Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi \; is \;\;\; \text{continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,\;1]$

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non zero index?

For a related question linked MSE question see this MSE post

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi \; is \;\;\; \text{continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,\;1]$

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non zero index?

For a related question see this MSE post

Let $X$ be a compact Hausdorff space. A continuous map $f:X \to X$ defines a bounded linear operator $T_{f}$ on Banach space $C(X)=\{\phi:X\to \mathbb{C} \mid \phi \; is \;\;\; \text{continuous}\}$ with $T_{f}(\phi)=\phi \circ f$.

Put $X=[0,\;1]$

What is an example of a non constant map $f$ such that $T_{f}$ is a compact operator? What is an example of a map $f$ such that $T_{f}$ is a Fredholm operator of non zero index?

For a linked MSE question see this MSE post

added 147 characters in body
Source Link
Ali Taghavi
  • 356
  • 8
  • 31
  • 123
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Source Link
Ali Taghavi
  • 356
  • 8
  • 31
  • 123
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