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## A convolution property of some measures with self-similar fractal support

### Tom 109 / 2007

Colloquium Mathematicum 109 (2007), 171-177 MSC: Primary 43A05; Secondary 43A15. DOI: 10.4064/cm109-2-1

#### Streszczenie

We define a class of measures having the following properties:

$\bullet$ the measures are supported on self-similar fractal subsets of the unit cube $I^{M}=[0,1)^{M}$, with 0 and 1 identified as necessary;

$\bullet$ the measures are singular with respect to normalized Lebesgue measure $m$ on $I^{M}$;

$\bullet$ the measures have the convolution property that $\mu * L^{p} \subseteq L^{p + \varepsilon}$ for some $\varepsilon = \varepsilon (p) > 0$ and all $p \in (1, \infty )$.

We will show that if $({1}/{p},{1}/{q})$ lies in the triangle with vertices $(0,0)$, $(1,1)$ and $({1}/{2},{1}/{3})$, then $\mu * L^{p} \subseteq L^{q}$ for any measure $\mu$ in our class.

#### Autorzy

• Denise SzecseiDepartment of Mathematics
Stetson University
P.O. Box 7532
Daytona Beach, FL 32116, U.S.A.
e-mail

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