[ABE-L] Seminário de probabilidade e processos estocásticos - IME-USP - 19/03 - 15h

[Aline Duarte]

Caros colegas,

na próxima *sexta-feira*, 19 de março, às *15h, *acontecerá o primeiro
seminário do ciclo SPSP-IME-USP de 2021. As informações e os vídeos dos
seminários estão disponíveis em https://sites.google.com/usp.br/psps-ime-usp
.

Um abraço,
Aline Duarte
-------------------------------


*Seminar on Probability and Stochastic Processes*
Speaker: Yevgeniy Kovchegov - (Oregon State University)
Next Friday, March 19th - 3pm
Live on Google Meets: https://meet.google.com/ncm-neqz-dut
Video recording will be available on:
https://sites.google.com/usp.br/psps-ime-usp

Title: Invariant Galton-Watson measures

Abstract: We introduce a one-parameter family of critical Galton-Watson
tree measures invariant under the operation of Horton pruning (cutting tree
leaves followed by series reduction). Under a regularity condition, this
family of measures are the attractors of critical Galton-Watson trees under
consecutive Horton pruning. The invariant Galton-Watson (IGW) measures with
i.i.d. exponential edge lengths are the only Galton-Watson measures
invariant with respect to all admissible types of generalized dynamical
pruning (an operation of erasing a tree from leaves down to the root).

This is a joint work with Ilya Zaliapin (University of Nevada Reno) and
Guochen Xu (Oregon State University).
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