Hausdorff Dimension Infinity












2














What are some examples of non-trivial metric spaces that have Hausdorff Dimension of infinity?



I could only think of $mathbb{R}$ with the discreet metric.










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  • 2




    This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
    – Dave L. Renfro
    Nov 26 at 20:12










  • @DaveL.Renfro No problem!
    – Mark McClure
    Nov 27 at 0:20
















2














What are some examples of non-trivial metric spaces that have Hausdorff Dimension of infinity?



I could only think of $mathbb{R}$ with the discreet metric.










share|cite|improve this question


















  • 2




    This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
    – Dave L. Renfro
    Nov 26 at 20:12










  • @DaveL.Renfro No problem!
    – Mark McClure
    Nov 27 at 0:20














2












2








2







What are some examples of non-trivial metric spaces that have Hausdorff Dimension of infinity?



I could only think of $mathbb{R}$ with the discreet metric.










share|cite|improve this question













What are some examples of non-trivial metric spaces that have Hausdorff Dimension of infinity?



I could only think of $mathbb{R}$ with the discreet metric.







real-analysis hausdorff-measure






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asked Nov 26 at 18:53









PhysMath

343111




343111








  • 2




    This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
    – Dave L. Renfro
    Nov 26 at 20:12










  • @DaveL.Renfro No problem!
    – Mark McClure
    Nov 27 at 0:20














  • 2




    This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
    – Dave L. Renfro
    Nov 26 at 20:12










  • @DaveL.Renfro No problem!
    – Mark McClure
    Nov 27 at 0:20








2




2




This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
– Dave L. Renfro
Nov 26 at 20:12




This frequent Mathematics Stack Exchange user's Ph.D. dissertation is a good place to look. (Hope he doesn't mind my pointing this out!)
– Dave L. Renfro
Nov 26 at 20:12












@DaveL.Renfro No problem!
– Mark McClure
Nov 27 at 0:20




@DaveL.Renfro No problem!
– Mark McClure
Nov 27 at 0:20










1 Answer
1






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1














Take the separable Hilbert space of infinite dimension
$$
ell^2={(a_n)_{ninmathbb{N}}subseteq mathbb{R}:sum_{ninmathbb{N}}a_n^2<infty}
$$






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  • 1




    +1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
    – Mark McClure
    Nov 27 at 0:23










  • No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
    – Dante Grevino
    Nov 27 at 15:57











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Take the separable Hilbert space of infinite dimension
$$
ell^2={(a_n)_{ninmathbb{N}}subseteq mathbb{R}:sum_{ninmathbb{N}}a_n^2<infty}
$$






share|cite|improve this answer



















  • 1




    +1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
    – Mark McClure
    Nov 27 at 0:23










  • No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
    – Dante Grevino
    Nov 27 at 15:57
















1














Take the separable Hilbert space of infinite dimension
$$
ell^2={(a_n)_{ninmathbb{N}}subseteq mathbb{R}:sum_{ninmathbb{N}}a_n^2<infty}
$$






share|cite|improve this answer



















  • 1




    +1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
    – Mark McClure
    Nov 27 at 0:23










  • No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
    – Dante Grevino
    Nov 27 at 15:57














1












1








1






Take the separable Hilbert space of infinite dimension
$$
ell^2={(a_n)_{ninmathbb{N}}subseteq mathbb{R}:sum_{ninmathbb{N}}a_n^2<infty}
$$






share|cite|improve this answer














Take the separable Hilbert space of infinite dimension
$$
ell^2={(a_n)_{ninmathbb{N}}subseteq mathbb{R}:sum_{ninmathbb{N}}a_n^2<infty}
$$







share|cite|improve this answer














share|cite|improve this answer



share|cite|improve this answer








edited Dec 6 at 3:19

























answered Nov 26 at 19:21









Dante Grevino

90819




90819








  • 1




    +1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
    – Mark McClure
    Nov 27 at 0:23










  • No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
    – Dante Grevino
    Nov 27 at 15:57














  • 1




    +1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
    – Mark McClure
    Nov 27 at 0:23










  • No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
    – Dante Grevino
    Nov 27 at 15:57








1




1




+1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
– Mark McClure
Nov 27 at 0:23




+1 Did you know that the subset of $ell^2$ with all rational coordinates has Hausdorff dimension 1? One of my favorite results of Erdos.
– Mark McClure
Nov 27 at 0:23












No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
– Dante Grevino
Nov 27 at 15:57




No, I never studied the Hausdorff measure in depth. It's an interesting result, thanks for share it!
– Dante Grevino
Nov 27 at 15:57


















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