4 papers
math-ph2026
Counterexamples to the and boundedness of the one-dimensional wave operators
Sisi Huang, Xiaohua Yao
It is well established that the wave operators for the one-dimensional Schrödinger operator are bounded on for all in…
math.AP2025
The -boundedness of wave operators for the fourth order Schrödinger operators on the lattice
Sisi Huang, Xiaohua Yao
This paper investigates the boundedness of wave operators associated with discrete fourth-order Schrödinger operators on the lattice $\math…
math.AP2025
Decay estimates for discrete bi-Laplace operators with potentials on the lattice
Sisi Huang, Xiaohua Yao
It is known that the discrete Laplace operator on the lattice satisfies the following sharp time decay estimate: $$\big\|e^{itÎ}\big\|_{\ell^1\rightarrow\ell^{\i…
math.AP2025
Decay estimates for discrete bi-Schrödinger operators on the lattice
Sisi Huang, Xiaohua Yao
It is known that the discrete Laplace operator on the lattice satisfies the following sharp time decay estimate: $$\left\|e^{itÎ}\right\|_{\ell^1\rightarrow\ell^…