等周流时变的谱分析
Spectral analysis of time changes for horocycle flows
摘要:
我们证明了(在条件A. G. Kushnirenko),在常数函数的正交补中,所有的时变时变都具有纯绝对连续的谱。这为A的一个问题提供了答案。Katok和J. - P.关于水平周期流的时变的光谱性质。我们的证明依赖于自伴算子的正交换子方法。
英文摘要:
We prove (under the condition of A. G. Kushnirenko) that all time changes for the horocycle flow have purely absolutely continuous spectrum in the orthocomplement of the constant functions. This provides an answer to a question of A. Katok and J.-P. Thouvenot on the spectral nature of time changes for horocycle flows. Our proofs rely on positive commutator methods for self-adjoint operators.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。