It is shown that Markov operators with equicontinuous dual operators which overlap supports have at most one invariant measure. In this way we extend the well known result proved for Markov operators with the strong Feller property by R. Z. Khas'minski.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm189-3-2, author = {Tomasz Szarek}, title = {The uniqueness of invariant measures for Markov operators}, journal = {Studia Mathematica}, volume = {187}, year = {2008}, pages = {225-233}, zbl = {1152.60055}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm189-3-2} }
Tomasz Szarek. The uniqueness of invariant measures for Markov operators. Studia Mathematica, Tome 187 (2008) pp. 225-233. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm189-3-2/