English
Related papers

Related papers: Comment on "Noether's-type theorems on time scales…

200 papers

Mermin states that his nontechnical version of Bell's theorem stands and is not invalidated by time and setting dependent instrument parameters as claimed in one of our previous papers. We identify deviations from well-established protocol…

Quantum Physics · Physics 2007-05-23 Karl Hess , Walter Philipp

We clarify the relation between canonical and metric energy-momentum tensors. In particular, we show that a natural definition arises from Noether's Theorem which directly leads to a symmetric and gauge invariant tensor for electromagnetic…

Mathematical Physics · Physics 2008-11-26 Ricardo E. Gamboa Saraví

Recently, the fractional Noether's theorem derived by G. Frederico and D.F.M. Torres in Appl. Math. Comp. 217,3,2010 was proved to be wrong by R.A.C. Ferreira and A.B. Malinowska in JMAA 429, 2, 2015 using a counterexample and doubts are…

Optimization and Control · Mathematics 2018-02-07 Jacky Cresson , Anna Szafranska

Noether gauge symmetry for F(R) theory of gravity has been explored recently. The fallacy is that, even after setting gauge to vanish, the form of F(R) \propto R^n (where n \neq 1, is arbitrary) obtained in the process, has been claimed to…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 Nayem Sk. , Abhik Kumar Sanyal

We prove Noether's direct and inverse second theorems for Lagrangian systems on fiber bundles in the case of gauge symmetries depending on derivatives of dynamic variables of an arbitrary order. The appropriate notions of reducible gauge…

Differential Geometry · Mathematics 2009-11-10 D. Bashkirov , G. Giachetta , L. Mangiarotti , G. Sardanashvily

Noether's Theorem is familiar to most physicists due its fundamental role in linking the existence of conservation laws to the underlying symmetries of a physical system. Typically the systems are described in the particle-based context of…

Statistical Mechanics · Physics 2022-05-04 Sophie Hermann , Matthias Schmidt

In some of the physically interesting gauge systems, we show that the application of the Noether theorem does not lead to the deduction of the Becchi-Rouet-Stora-Tyutin (BRST) and anti-BRST charges that obey precisely the off-shell…

High Energy Physics - Theory · Physics 2022-11-18 A. K. Rao , A. Tripathi , B. Chauhan , R. P. Malik

I exhibit the conflicting roles of Noether's two great theorems in defining conserved quantities, especially Energy in General Relativity and its extensions: It is the breaking of coordinate invariance through boundary conditions that…

General Relativity and Quantum Cosmology · Physics 2019-09-02 S. Deser

In a recent article [Phys. Rev. A 57, 1572 (1998)] Caticha has concluded that ``nonlinear variants of quantum mechanics are inconsistent.'' In this note we identify what it is that nonlinear quantum theories have been shown to be…

Quantum Physics · Physics 2016-09-08 J. Finkelstein

An overview is given of recent developments in the field of Dirac equations generalized to curved space-times. An illustrative discussion is provided. We conclude with a variation of Dirac's large-number hypothesis which relates a number of…

General Physics · Physics 2014-08-05 U. D. Jentschura

In this short survey article, we aim to provide an up to date information on the progress made towards Schurs exponent conjecture and related conjectures. We also mention the connection between Schurs exponent conjecture and Noether's…

Group Theory · Mathematics 2020-08-04 Viji Z Thomas

The concept of symmetries in physics is briefly reviewed. In the first part of these lecture notes, some of the basic mathematical tools needed for the understanding of symmetries in nature are presented, namely group theory, Lie groups and…

Nuclear Theory · Physics 2007-05-23 Roelof Bijker

In this paper, we prove the Noether theorem with the multiplicities described by PD operators. Despite the known analogue versions in this case the provided conditions are necessary and sufficient. We also prove the Cayley-Bacharach theorem…

Algebraic Geometry · Mathematics 2020-04-23 Hakop Hakopian , Navasard Vardanyan

Our goal in the present paper is to give a new ergodic proof of a well-known Veech's result, build upon our previous works.

Dynamical Systems · Mathematics 2017-03-07 Panagiotis Georgopoulos

We give a detailed proof for Gordan-Noether's results in "Ueber die algebraischen Formen, deren Hesse'sche Determinante identisch verschwindet" published in 1876 in Mathematische Annahlen. C. Lossen has written a paper in a similar…

Commutative Algebra · Mathematics 2019-09-30 Junzo Watanabe , Michiel de Bondt

Comment on paper "Towards a bulk theory of flexoelectricity" by R.Resta [Phys.Rew. Lett. v. 105, 127601 (2010)]

Other Condensed Matter · Physics 2010-12-13 Alexander K. Tagantsev

The Noether gauge symmetries of geodesic Lagrangian for the pp-wave spacetimes are determined in each of the Noether gauge symmetry classes of the pp-wave spacetimes. It is shown that a type N pp-wave spacetime can admit at most three…

General Relativity and Quantum Cosmology · Physics 2016-05-04 U. Camci , A. Yildirim

The Noether symmetry of a generic $f(R)$ cosmological model is investigated by utilizing the behavior of the corresponding Lagrangian under the infinitesimal generators of the desired symmetry. We explicitly calculate the form of $f(R)$ for…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Babak Vakili

The measurement apparatus proposed in the titled paper, "Energy-Time Uncertainty Relations in Quantum Measurements" [Found. Phys. 46, 1522-1550 (2016)] was examined. A simple proof was presented for the non-existence of the apparatus.

Quantum Physics · Physics 2018-09-24 Koji Yasuda

The following paper follows on from work by Kamae, and gives a rigorous proof of the Ergodic Theorem, using nonstandard analysis.

Dynamical Systems · Mathematics 2015-02-24 Tristram de Piro
‹ Prev 1 4 5 6 7 8 10 Next ›