Robert F. Allen and Isaac M. Craig University of Wisconsin-La Crosse, University of Wisconsin-La Crosse
Abstract : We study multiplication operators on the weighted Banach spaces of an infinite tree. We characterize the bounded and the compact operators, as well as determine the operator norm. In addition, we determine the spectrum of the bounded multiplication operators and characterize the isometries. Finally, we study the multiplication operators between the weighted Banach spaces and the Lipschitz space by characterizing the bounded and the compact operators, determining estimates on the operator norm, and showing there are no isometries.
Keywords : multiplication operators, trees, weighted Banach space