RT Journal Article T1 Hamiltonian treatment of linear field theories in the presence of boundaries: A geometric approach A1 Barbero G., J. Fernando A1 Prieto, Jorge A1 Sánchez Villaseñor, Eduardo Jesús AB The purpose of this paper is to study in detail the constraint structure of the Hamiltonian description for the scalar and electromagnetic fields in the presence of spatial boundaries. We carefully discuss the implementation of the geometric constraint algorithm of Gotay, Nester and Hinds with special emphasis on the relevant functional analytic aspects of the problem. This is an important step toward the rigorous understanding of general field theories in the presence of boundaries, very especially when these fail to be regular. The geometric approach employed in the paper is also useful with regard to the interpretation of the physical degrees of freedom and the nature of the constraints when both gauge symmetries and boundaries are present. PB IOP Publishing SN 0264-9381 YR 2014 FD 2014-02-03 LK https://hdl.handle.net/10016/24583 UL https://hdl.handle.net/10016/24583 LA eng NO The authors want to thank M Gotay and, especially, J Nester for their useful comments. This work has been supported by the Spanish MICINN research grants FIS2009-11893, FIS2012-34379 and the Consolider-Ingenio 2010 Program CPAN (CSD2007-00042). DS e-Archivo RD 27 jul. 2024