Abstract
Precise conditions are obtained for the packing measure of an arbitrary subordinator to be zero, positive and finite, or infinite. It develops that the packing measure problem for a subordinator X(t) is equivalent to the upper local growth problem for Y(t)=min (Y1(t), Y2(t)), where Y1 and Y2 are independent copies of X. A finite and positive packing measure is possible for subordinators "close to Cauchy"; for such a subordinator there is non-random concave upwards function that exactly describes the upper local growth of Y (although, as is well known, there is no such function for the subordinator X itself).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 493-510 |
| Number of pages | 18 |
| Journal | Probability Theory and Related Fields |
| Volume | 92 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 1992 |