A formula for inserting point masses

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摘要

Let dμ be a probability measure on the unit circle and dν be the measure formed by adding a pure point to dμ. We give a formula for the Verblunsky coefficients of dν, based on a result of Simon.

论文关键词：42C05,30E10,05E35,Point masses,Decay of Verblunsky coefficients

论文评审过程：Received 27 October 2007, Available online 26 February 2009.

论文官网地址：https://doi.org/10.1016/j.cam.2009.02.052