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THRESHOLD SOLUTIONS FOR CUBIC SCHRODINGER SYSTEMS

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Autor(es):
Campos, Luccas ; Pastor, Ademir
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: SIAM JOURNAL ON MATHEMATICAL ANALYSIS; v. 57, n. 6, p. 31-pg., 2025-12-31.
Resumo

We consider the Schrodinger system { i partial derivative(t)u+Delta u+ (| u| (2)+beta| v| (2))u= 0, i partial derivative(t)v+Delta v+ (| v| (2)+beta| u| (2))v= 0, with initial data (u(0),v(0))is an element of H-1(R (3)) X H-1(R (3)) at the so-called mass-energy threshold ,i.e., such that M(u(0),v(0))E(u(0),v(0)) =M(Phi,psi)E(Phi,psi), where (Phi,psi ) is a ground state. For a suitable range of values of beta > 0, we show the existence of special solutions to this system, which converge to a standing wave solution in one time direction, and either blow up or scatters in the opposite direction. Moreover, we classify general solutions at the ground state, showing a rigidity result regarding the possible long-time behaviors that might occur. Our results do not rely on the uniqueness of the corresponding ground state; indeed, the main results hold even in the case where the Weinstein functional is known to have more than one optimizer. (AU)

Processo FAPESP: 19/02512-5 - Sistemas e equações diferenciais parciais
Beneficiário:Marcelo da Silva Montenegro
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 20/10185-1 - Comportamento local e global de soluções de equações dispersivas
Beneficiário:Luccas Cassimiro Campos
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado