학술저널
BACKWARD EXTENSION OF SUBNORMAL 2-VARIABLE WEIGHTED SHIFTS
- 충청수학회
- Journal of the Chungcheong Mathematical Society
- Volume 28, No. 2
-
2015.05261 - 267 (7 pages)
- 4
We study backward extensions of 2-variable weighted shifts with finite atomic Berger measure. We provide a necessary and sufficient condition for the subnormality of such extensions. As an application, we give a simple counterexample for the Curto-Muhly-Xia conjecture [10].
1. Introduction
2. Main results
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