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gr-qc2026
Towards a Connection Formulation of Action-Dependent Palatini Gravity
Callum Bell, David Sloan
Previous work has shown that first-order Palatini gravity may be cast as a non-conservative Herglotz Lagrangian field theory, which excludes the conformal mode from its space of dy…
gr-qc2026
Classical General Relativity as a Non-Conservative Action-Dependent Field Theory
Callum Bell, David Sloan
Previous work has provided the mathematical framework within which to analyse dynamical similarities for classical theories of fields. This formalism has been extended to those the…
gr-qc2025
Gauge Symmetries, Contact Reduction, and Singular Field Theories
Callum Bell, David Sloan
The symmetry reduction of dynamical systems that are invariant under changes of global scale is well-understood for classical theories of particles, and fields. The excision of the…