In high dimensions two independent simple random walks have only a finite number of intersections. I describe the main result obtained in a joint paper with Xia Chen in which we determine the exact upper tail behaviour of the intersection local time.
@article{ACIRM_2010__2_1_27_0, author = {Peter M\"orters}, title = {Upper tail asymptotics for the intersection local times of random walks in high dimensions}, journal = {Actes des rencontres du CIRM}, pages = {27--29}, publisher = {CIRM}, volume = {2}, number = {1}, year = {2010}, doi = {10.5802/acirm.20}, zbl = {06938568}, language = {en}, url = {https://acirm.centre-mersenne.org/articles/10.5802/acirm.20/} }
TY - JOUR AU - Peter Mörters TI - Upper tail asymptotics for the intersection local times of random walks in high dimensions JO - Actes des rencontres du CIRM PY - 2010 SP - 27 EP - 29 VL - 2 IS - 1 PB - CIRM UR - https://acirm.centre-mersenne.org/articles/10.5802/acirm.20/ DO - 10.5802/acirm.20 LA - en ID - ACIRM_2010__2_1_27_0 ER -
%0 Journal Article %A Peter Mörters %T Upper tail asymptotics for the intersection local times of random walks in high dimensions %J Actes des rencontres du CIRM %D 2010 %P 27-29 %V 2 %N 1 %I CIRM %U https://acirm.centre-mersenne.org/articles/10.5802/acirm.20/ %R 10.5802/acirm.20 %G en %F ACIRM_2010__2_1_27_0
Peter Mörters. Upper tail asymptotics for the intersection local times of random walks in high dimensions. Actes des rencontres du CIRM, Volume 2 (2010) no. 1, pp. 27-29. doi : 10.5802/acirm.20. https://acirm.centre-mersenne.org/articles/10.5802/acirm.20/
[1] X. Chen and P. Mörters. Upper tails for intersection local times of random walks in supercritial dimensions. Journal of the London Mathematical Society, 79 (2009) 186-210. | DOI | MR | Zbl
[2] A. Dvoretzky and P. Erdős. Some problems on random walk in space. In: Proceedings of the Second Berkeley Symposium on Mathematical Statistics and Probability, 1950. University of California Press, Berkeley and Los Angeles, pp. 353–367, 1951.
[3] K.M. Khanin, A.E. Mazel, S.B. Shlosman and Ya.G. Sinai. Loop condensation effects in the behavior of random walks. In: Markov processes and applications, Birkhäuser, pp. 167–184, 1994. | DOI | Zbl
[4] W. König and P. Mörters. Brownian intersection local times: Upper tail asymptotics and thick points. Annals of Probability, 30 (2002) 1605-1656. | DOI | MR | Zbl
Cited by Sources: