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Exact-Dimensional Measure


An exact-dimensional measure is a Borel measure mu on Euclidean space R^d that is a probability measure and has a common pointwise dimension at mu-almost every point. Explicitly, there is a constant alpha such that

 lim_(r->0)(lnmu(B(x,r)))/(lnr)=alpha

for mu-almost every x, where B(x,r) is the open ball of radius r centered at x (Algom et al. 2026).


See also

Pointwise Dimension

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References

Algom, A.; Hochman, M.; and Wu, M. "New Results on Embeddings of Self-Similar Sets via Renormalization." Proc. London Math. Soc. 133, e70177, 2026. https://doi.org/10.1112/plms.70177.

Cite this as:

Weisstein, Eric W. "Exact-Dimensional Measure." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Exact-DimensionalMeasure.html

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