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Heredia Pimienta, Carlos (Data de defensa: 2023-03-31)
[eng] This thesis aims to study nonlocal Lagrangians with a finite and an infinite number of degrees of freedom. We obtain an extension of Noether's theorem and Noether's identities for such Lagrangians. ...
Morera Navarro, Ivan (Data de defensa: 2023-07-10)
[eng] In this Thesis we explore exotic phases of matter which arise when different mechanisms compete and favor different ground state configurations. We focus on two classes of low dimensional lattice ...