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MATHEMATICS
Bifurcating standing waves for effective equations in gapped honeycomb structures
W. Borrellia, R. Carloneb a Centro De Giorgi, Scuola Normale Superiore, Piazza dei Cavalieri 3, I-56100, Pisa, Italy
b Universita “Federico II” di Napoli, Dipartimento di Matematica e Applicazioni “R. Caccioppoli”, MSA, via Cinthia, I-80126, Napoli, Italy
Abstract:
In this paper, we deal with two-dimensional cubic Dirac equations, appearing as an effective model in gapped honeycomb structures. We give a formal derivation starting from cubic Schrödinger equations and prove the existence of standing waves bifurcating from one band-edge of the linear spectrum.
Keywords:
nonlinear Dirac equations, bifurcation methods, existence results, honeycomb structures.
Received: 28.12.2020 Revised: 06.01.2021
Citation:
W. Borrelli, R. Carlone, “Bifurcating standing waves for effective equations in gapped honeycomb structures”, Nanosystems: Physics, Chemistry, Mathematics, 12:1 (2021), 5–14
Linking options:
https://www.mathnet.ru/eng/nano582 https://www.mathnet.ru/eng/nano/v12/i1/p5
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