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Does Is it true that for every group $G$ and $f\in \mathbb C[G]$ it holds that $dim(C[G]*f)\mathop{supp}(f)\geq $\dim(\mathbb C[G]*f)\mathop{supp}(f)\geq |G|$? Where G| ?$$ Here, $\mathbb C[G]$ is the group algebra, and by $\mathbb C[G]*f$ I mean left ideal of the group algebra $\mathbb C[G]$ generated by $f$. Essentially this is uncertainty principle for non-commutative groups. Since $supp \hat {f} = dim C[G]*f$ in case $G$ is abelian. |
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Uncertainty principle for non-comutative non-commutative groupsDoes it true that for every group $G$ and $f\in C[G]$ it holds that $dim(C[G]*f)supp(f)\geq dim(C[G]*f)\mathop{supp}(f)\geq |G|$? Where , $C[G]$ is a the group algebra, and by $C[G]*f$ I mean left ideal of the group algebra $C[G]$ generated by $f$. Essentially this is uncertainty principle for non-commutative groups. Since $supp \hat {f} = dim C[G]*f$. |
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Does it true that for every group $G$ and $f\in C[G]$ it holds that $dim(C[G]*f)supp(f)\geq |G|$? Where, $C[G]$ is a group algebra, by $C[G]*f$ I mean left ideal of the group algebra $C[G]$ generated by $f$. Essentially this is uncertainty principle for non-commutative groups. Since $supp \hat {f} = dim C[G]*f$. |
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