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This work establishes a Space-Time Connectivity Theorem for normal currents. In analogy to classical results by Federer and Fleming as well as a recent theorem for integral currents by the second author, this result allows one to witness…

Analysis of PDEs · Mathematics 2025-10-10 Paolo Bonicatto , Filip Rindler , Harry Turnbull

The basic concepts of the formulation of Maxwellian electromagnetism in the absence of a Minkowski scalar product on spacetime are summarized, with particular emphasis on the way that the electromagnetic constitutive law on the space of…

General Relativity and Quantum Cosmology · Physics 2007-05-23 David Delphenich

We provide a simple proof that conformally semi-symmetric spacetimes are actually semi-symmetric. We also present a complete refined classification of the semi-symmetric spacetimes.

Differential Geometry · Mathematics 2015-05-14 Ingemar Eriksson , José M. M. Senovilla

The disclination in Lorentz space-time is studied in detail by means of topological properties of $\phi $-mapping. It is found the space-time disclination can be described in term of a Dirac spinor. The size of the disclination, which is…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Sheng Li

A free hermitian conformal field theory is considered in Minkowski, de Sitter and anti-de Sitter spacetimes. The first part of the paper studies spacetime inversion and conformal inversion, wherein their role in the field quantization is…

General Relativity and Quantum Cosmology · Physics 2015-01-16 Slava Emelyanov

This paper deals with the classification of spinor fields according to the bilinear covariants in 7 dimensions. The previously investigated Riemannian case is characterized by either one spinor field class, in the real case of Majorana…

High Energy Physics - Theory · Physics 2016-01-26 L. Bonora , Roldao da Rocha

The equation of the spin-$\frac{1}{2}$ particles in the Friedmann-Lema\^itre-Robertson-Walker spacetime is investigated. The retarded and advanced fundamental solutions to the Dirac operator and generalized Dirac operator as well as the…

Mathematical Physics · Physics 2021-08-13 Karen Yagdjian

We explore new aspects of internal fermionic shifting symmetries, present in physical systems such as free Dirac spinors and p-form tensor-spinor fields. We propose a novel procedure to gauge these global symmetries, which also introduces a…

High Energy Physics - Theory · Physics 2024-11-07 Federico Ambrosino , Ran Luo , Yi-Nan Wang , Yi Zhang

The equations defining pure spinors are interpreted as equations of motion formulated on the lightcone of a ten-dimensional, lorentzian, momentum space. Most of the equations for fermion multiplets, usually adopted by particle physics, are…

High Energy Physics - Theory · Physics 2007-05-23 Paolo Budinich

Following the program of investigation of alternative spinor duals potentially applicable to fermions beyond the standard model, we demonstrate explicitly the existence of several well-defined spinor duals. Going further we define a mapping…

General Physics · Physics 2020-05-20 R. T. Cavalcanti , J. M. Hoff da Silva

We show that the attempt to introduce all of the discrete space-time transformations into the spinor representation of the Lorentz group as wholly independent transformations (as in the vectorial representation) leads to an 8-component…

High Energy Physics - Theory · Physics 2007-05-23 Recai Erdem

An attempt is made of giving a self-contained (although incomplete) introduction to holomorphic ideas in general relativity, following work over the last thirty years by several authors. The main topics are complex manifolds, two-component…

High Energy Physics - Theory · Physics 2015-06-26 Giampiero Esposito

A non-canonical correspondence of the complete sets of solutions to the Dirac and Klein-Gordon free equations in Minkowski space-time is established. This allows for a novel viewpoint on the relationship of relativistic equations for…

General Relativity and Quantum Cosmology · Physics 2010-11-23 Vladimir V. Kassandrov

We represent sixteen-component values "sedeons", generating associative noncommutative space-time algebra. We demonstrate a generalization of relativistic quantum mechanics using sedeonic wave functions and sedeonic space-time operators. It…

General Physics · Physics 2014-01-14 Victor L. Mironov , Sergey V. Mironov

We give an informal summary of ongoing work which uses tools distilled from the theory of fibre bundles to classify and connect invariant fields associated with spin motion in storage rings. We mention four major theorems. One ties…

Accelerator Physics · Physics 2016-03-23 Klaus Heinemann , Desmond P. Barber , James A. Ellison , Mathias Vogt

We revisit the subject exploring maps from the space of 4-spinors to 3+1 space-time that commute with the Lorentz transformation. All known mappings have a natural embedding in a higher five dimensional spacetime, and can be succinctly…

High Energy Physics - Theory · Physics 2013-12-10 Francesco Antonuccio

We study the existence of points on a compact oriented surface at which a symmetric bilinear two-tensor field is conformal to a Riemannian metric. We give applications to the existence of conformal points of surface diffeomorphisms and…

Differential Geometry · Mathematics 2024-04-18 Peter Albers , Gabriele Benedetti

The wave equations for self/anti-self conjugate Majorana-McLennan-Case $j=1/2$ and $j=1$ spinors, proposed by Ahluwalia, are re-written to covariant form. The connection with the Foldy-Nigam-Bargmann-Wightman-Wigner (FNBWW) type quantum…

High Energy Physics - Theory · Physics 2007-05-23 Valeri V. Dvoeglazov

We give an overview of the correspondance between one-time-physics and two-time-physics. This is characterized by the presence of an SO(d,2) symmetry and an Sp(2) duality among diverse one-time-physics systems all of which can be lifted to…

High Energy Physics - Theory · Physics 2007-05-23 Itzhak Bars

Spherically symmetric, asymptotically flat solutions of Shape Dynamics were previously studied assuming standard falloff conditions for the metric and the momenta. These ensure that the spacetime is asymptotically Minkowski, and that the…

General Relativity and Quantum Cosmology · Physics 2016-09-21 Flavio Mercati