## Abstract Let __C~ฮฝ~__(__T__) denote the โcover timeโ of the tree __T__ from the vertex __v__, that is, the expected number of steps before a random walk starting at __v__ hits every vertex of __T.__ Asymptotic lower bounds for __C~ฮฝ~__(__T__) (for __T__ a tree on __n__ vertices) have been obtain
On the Mean and Variance of Cover Times for Random Walks on Graphs
โ Scribed by Frank Ball; Bruce Dunham; A Hirschowitz
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 141 KB
- Volume
- 207
- Category
- Article
- ISSN
- 0022-247X
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โฆ Synopsis
A method is described for calculating the mean cover time for a particle performing a simple random walk on the vertices of a finite connected graph. The method also yields the variance and generating function of the cover time. A computer program is available which utilises the approach to provide results for vertex symmetric graphs. Some examples are given. แฎ 1997 Academic Press quantities do not depend on ยจ, the subscripts will be omitted.
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