An answer to a question of A. Lubin: The lifting problem for commuting subnormals

Authors

Sang Hoon Lee
Woo Young Lee
Jasang Yoon, The University of Texas Rio Grande ValleyFollow

Document Type

Article

Publication Date

11-8-2017

Abstract

In this paper, we give an answer to a long-standing open question on the lifting problem for commuting subnormals (due to A. Lubin): The subnormality for the sum of commuting subnormal operators does not guarantee the existence of commuting normal extensions.

Comments

Original published version available at https://doi.org/10.1007/s11856-017-1587-7

Recommended Citation

Lee, Sang Hoon, Woo Young Lee, and Jasang Yoon. "An answer to a question of A. Lubin: the lifting problem for commuting subnormals." Israel Journal of Mathematics 222, no. 1 (2017): 201-222. http://doi.org/10.1007/s11856-017-1587-7

Publication Title

Israel Journal of Mathematics