1997/01/24 by Frank Gronwald, Gronwald, Frank, Friedrich W. Hehl +1
Physics and Astronomy · #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #High Energy Physics - Theory (hep-th) #gr-qc #hep-th
paper · pdf · doi:10.48550/arxiv.gr-qc/9701054
26 pages, LaTeX, eight .eps figures included, modified version of an invited lecture given in honor of A. Signorini, International Conference in Memory of Antonio Signorini, Isola d'Elba, June 1991
arxiv created 1997/01/24 · arxiv updated 2009/11/30
The notions of stress and hyperstress are anchored in 3-dimensional continuum mechanics. Within the framework of the 4-dimensional spacetime continuum, stress and hyperstress translate into the energy-momentum and the hypermomentum current, respectively. These currents describe the inertial properties of classical matter fields in relativistic field theory. The hypermomentum current can be split into spin, dilation, and shear current. We discuss the conservation laws of momentum and hypermomentum and point out under which conditions the momentum current becomes symmetric.