%0 Journal Article %T Kernel estimators of asymptotic variance for adaptive Markov chain Monte Carlo %A Yves F. Atchad¨¦ %J Mathematics %D 2009 %I arXiv %R 10.1214/10-AOS828 %X We study the asymptotic behavior of kernel estimators of asymptotic variances (or long-run variances) for a class of adaptive Markov chains. The convergence is studied both in $L^p$ and almost surely. The results also apply to Markov chains and improve on the existing literature by imposing weaker conditions. We illustrate the results with applications to the $\operatorname {GARCH}(1,1)$ Markov model and to an adaptive MCMC algorithm for Bayesian logistic regression. %U http://arxiv.org/abs/0911.1164v2