<abstract xmlns="http://www.w3.org/1999/xhtml"><p>We summarize features and results on the problem of the existence of Ground States for the Nonlinear Schrödinger Equation on doubly-periodic metric graphs. We extend the results known for the two–dimensional square grid graph to the honeycomb, made of infinitely-many identical hexagons. Specifically, we show how the coexistence between one–dimensional and two–dimensional scales in the graph structure leads to the emergence of threshold phenomena known as dimensional crossover.</p></abstract>

We summarize features and results on the problem of the existence of Ground States for the Nonlinear Schrödinger Equation on doubly-periodic metric graphs. We extend the results known for the two–dimensional square grid graph to the honeycomb, made of infinitely-many identical hexagons. Specifically, we show how the coexistence between one–dimensional and two–dimensional scales in the graph structure leads to the emergence of threshold phenomena known as dimensional crossover.

Quantum graphs and dimensional crossover: the honeycomb

Dipartimento di Scienze Matematiche “G.L. Lagrange”

Communications in Applied and Industrial Mathematics

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Quantum graphs and dimensional crossover: the honeycomb"}

We summarize features and results on the problem of the existence of Ground States for the Nonlinear Schrödinger Equation on doubly-periodic metric graphs. We...

Quantum graphs and dimensional crossover: the honeycomb

Pubblicato online: 15 giu 2019

Pagine: 109 - 122

Ricevuto: 30 gen 2019

Accettato: 17 mag 2019

DOI: https://doi.org/10.2478/caim-2019-0016

Parole chiave
periodic graphs, nonlinear Schrödinger, threshold phenomena, Sobolev inequality

© 2019 Riccardo Adami et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Quantum graphs and dimensional crossover: the honeycomb

Pubblicato online: 15 giu 2019

Pagine: 109 - 122

Ricevuto: 30 gen 2019

Accettato: 17 mag 2019

DOI: https://doi.org/10.2478/caim-2019-0016

Parole chiaveperiodic graphs, nonlinear Schrödinger, threshold phenomena, Sobolev inequality

© 2019 Riccardo Adami et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
periodic graphs, nonlinear Schrödinger, threshold phenomena, Sobolev inequality