Jean Carlo Moraes

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20112026

t

-Haar multipliers on

L^{2}

30 citations · 39 across the 7 of their papers we have counts for

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math.CO2026

Spectral asymmetry and odd cycles in integral graphs

Rodrigo O. Braga, Jean Carlo Moraes, Matheus C. Santos

We prove that the triangle $C_{3}$ is the only integral unicyclic graph with an odd cycle. The main tool is a spectral inequality that does not require integrality: if $G$ is a conne…

math.CO2026

Pendant paths and integral generalized sun graphs

Rodrigo O. Braga, Jean Carlo Moraes, Matheus C. Santos

A graph is integral if the spectrum of its adjacency matrix consists entirely of integers. We prove that every simple graph having a pendant path with at least three edges has an e…