Mathematical foundations for field theories on Finsler spacetimes

M Hohmann, C Pfeifer, N Voicu - Journal of Mathematical Physics, 2022 - pubs.aip.org
This paper introduces a general mathematical framework for action-based field theories on
Finsler spacetimes. As most often fields on Finsler spacetime (eg, the Finsler fundamental …

Relativistic kinetic gases as direct sources of gravity

M Hohmann, C Pfeifer, N Voicu - Physical Review D, 2020 - APS
We propose a new model for the description of a gravitating multiparticle system, viewed as
a kinetic gas. The properties of the (colliding or noncolliding) particles are encoded into a so …

Multisymplectic unified formalism for Einstein-Hilbert gravity

J Gaset, N Román-Roy - Journal of Mathematical Physics, 2018 - pubs.aip.org
We present a covariant multisymplectic formulation for the Einstein-Hilbert model of general
relativity. As it is described by a second-order singular Lagrangian, this is a gauge field …

An exterior-algebraic derivation of the symmetric stress–energy–momentum tensor in flat space–time

A Martinez, J Font-Segura, I Colombaro - The European Physical Journal …, 2021 - Springer
This paper characterizes the symmetric rank-2 stress–energy–momentum tensor associated
with fields whose Lagrangian densities are expressed as the dot product of two multivector …

[PDF][PDF] Finsler-based field theory–a mathematical foundation

M Hohmann, C Pfeifer, N Voicu - arxiv preprint arxiv:2106.14965, 2021 - researchgate.net
(Pseudo-) Finsler geometry is the most general geometry admitting a parametrization-
invariant arc length of curves. It generalizes Riemannian geometry by using as its …

[HTML][HTML] Overconnections and the energy-tensors of gauge and gravitational fields

D Canarutto - Journal of Geometry and Physics, 2016 - Elsevier
A geometric construction for obtaining a prolongation of a connection to a connection of a
bundle of connections is presented. This determines a natural extension of the notion of …

Derivation of the symmetric stress-energy-momentum tensor in exterior algebra

I Colombaro, J Font-Segura… - Journal of Physics …, 2021 - iopscience.iop.org
We present a derivation of a manifestly symmetric form of the stress-energy-momentum
using the mathematical tools of exterior algebra and exterior calculus, bypassing the …

[PDF][PDF] Geometric Methods of Finsler% Based Field Theory Habilitation Thesis

N Voicu - 2022 - unitbv.ro
This thesis is largely based on joint papers with: Christian Pfeifer (University of Bremen,
Ger% many), Manuel Hohmann (University of Tartu, Estonia), Demeter Krupka (Lepage …

A multisymplectic approach to gravitational theories

J Gaset Rifà - 2018 - upcommons.upc.edu
The theories of gravity are one of the most important topics in theoretical physics and
mathematical physics nowadays. The classical formulation of gravity uses the Hilbert …