Tian Zhao

collaborators

2 papers

math-ph2025

A finite dimensional trace formula

Tianhong Zhao

We take the trace of Von-Neumann's ergodic theorem and get a trace formula of a unitary matrix family. It is an extension of Poisson summation formula in higher dimension. We also…

math-ph2023

Spectral theory of $p$ -adic unitary operator

Zhao Tianhong

The $p$ -adic unitary operator $U$ is defined as an invertible operator on $p$ -adic ultrametric Banach space such that $∣ U ∣ = U^{- 1} = 1$ . We point out $U$ h…

A finite dimensional trace formula

Spectral theory of p-adic unitary operator

Spectral theory of $p$ -adic unitary operator