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| | Packing and covering indices for a general Lévy process, William E. Pruitt, S. James Taylor |
 | | There has been substantial interest in the indices $0 \leq \beta'' \leq \beta' \leq \beta \leq 2$, defined by Blumenthal and Getoor, determined by a general Lévy process in $\mathbf{R}^d$. |
 | | Pruitt defined an index $\gamma$ which determines the covering dimension and Taylor showed that an index $\gamma'$, first considered by Hendricks, determines the packing dimension for the trajectory. |
 | | However, we cannot completely determine the set of values of $(\gamma, \gamma', \beta)$ which can be attained as indices of some Lévy process. |
| projecteuclid.org /Dienst/UI/1.0/Summarize/euclid.aop/1039639373 (296 words) |
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