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The original answer said "iterates". This is the plural of a genuine noun. There was no need to change it to "iterations"
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Yemon Choi
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$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional"functional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterationsiterates of $f$.

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterations of $f$.

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "functional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterates of $f$.

Post Closed as "Not suitable for this site" by Franz Lemmermeyer, Wolfgang, András Bátkai, user1688, Stefan Kohl
changed title + english + removed irrelevant tag
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Functional equation: Can we find a functionan operator that satisfies this equation?

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iteratesiterations of $f$.

Functional equation: Can we find a function that satisfies this equation?

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterates of $f$.

Can we find an operator that satisfies this equation?

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterations of $f$.

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterates of $f$.

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

$f^{\alpha }\left( \overrightarrow {0}\right) +f^{\beta }\left( \overrightarrow {0}\right) =f^{\alpha \beta +\alpha +\beta }\left( \overrightarrow {0}\right)$

Is there a function $f$ from $R^{\infty}$ to $R^{\infty}$ that satisfies this equation for all natural ${\alpha}$ and ${\beta}$ ?

I already know that any function that has $f\left( \overrightarrow {0}\right)= \overrightarrow {0}$ satisfies the equation, so are there any other functions that satisfy the equation?

Thank you in advance!

*My phrasing for this being a "funtional equation" was flawed. All I really wanted to know was the existance of a function that satisfies the equation above.

*The superscripts indicate iterates of $f$.

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