Silas L. Carvalho

activity

20232026

collaborators

3 papers

math-ph2026

The Oracle Theorem for Matrix-Valued Jacobi Operators

Silas L. Carvalho, Douglas C. P. Freitas

This paper develops the matrix-valued analogue of the reflectionless and oracle framework for Jacobi operators. Starting from matrix-valued Weyl--Titchmarsh $m$ -functions on the Si…

math.SP2025

Hölder continuity and Fourier asymptotics of spectral measures for 1D Schrödinger operators under exponentially decaying perturbations

M. Aloisio, Silas L. Carvalho, C. R. de Oliveira

We establish $\frac{1}{2}$ -Hölder continuity, or even the Lipschitz property, for the spectral measures of half-line discrete Schrödinger operators under suitable boundary conditio…

math.FA2023

Refined decay rates of $C_{0}$ -semigroups on Banach spaces

Genilson S. de Santana, Silas L. Carvalho

We study rates of decay for $C_{0}$ -semigroups on Banach spaces under the assumption that the norm of the resolvent of the semigroup generator grows with $\vert s\vert^β\log(\vert s\…

The Oracle Theorem for Matrix-Valued Jacobi Operators

Hölder continuity and Fourier asymptotics of spectral measures for 1D Schrödinger operators under exponentially decaying perturbations

Refined decay rates of C0​-semigroups on Banach spaces

Refined decay rates of $C_{0}$ -semigroups on Banach spaces