# Uncertainty Principles for Kac Algebras

@article{Liu2016UncertaintyPF, title={Uncertainty Principles for Kac Algebras}, author={Zhengwei Liu and Jinsong Wu}, journal={arXiv: Operator Algebras}, year={2016} }

In this paper, we introduce the notation of bi-shift of biprojections in subfactor theory to unimodular Kac algebras. We characterize the minimizers of Hirschman-Beckner uncertainty principle and Donoho-Stark uncertainty principle for unimodular Kac algebras with biprojections and prove Hardy's uncertainty principle in terms of minimizers.

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