相关论文: Three-line derivation of the Thomas precession

An irreducible cohomological derivation of the Freedman-Townsend vertex in four dimensions is given.

We give a brief survey of abelian torsions of 3-manifolds.

We present a direct derivation of the typical time derivatives used in a continuum description of complex fluid flows, harnessing the principles of the kinematics of line elements. The evolution of the microstructural conformation tensor in…

A simple theory of the covariant derivatives, deformed derivatives and relative covariant derivatives of extensor fields is present using algebraic and analytical tools developed in previous papers. Several important formulas are derived.

This is a revised version (replacing an older one) with typos fixed and the introduction expanded.

This contribution, built on the companion paper [1], is focused on the different mathematical approaches available for the analysis of the quasilinear approximation in plasma physics.

In this article we derive a simple twisted relative trace formula.

We prove Davis decompositions for vector valued Hardy martingales and illustrate their use. This paper continues our previous work on Davis and Garsia inequalities for scalar Hardy martingales.

It is demonstrated that the 3--vector $\bs{S}$ currently associated to the spin in an inertial frame does not contract, but rather dilates, in the direction of the velocity. The correct vector $\bs{T}$ is individuated. The equation of…

We give an alternate proof of three versions of the theorem on extrapolation of Carleson measures.

In this paper, we define some new notions of triangular Banach algebras and we investigate the derivations on these algebras.

We give a short and self-contained proof of Levi's Extension Lemma for pseudoline arrangements.

We survey the classical results of the Dirichlet Approximation Theorem.

We prove several extensions of the Erdos-Fuchs theorem.

Starting from the problem of two fixed centres we find a simple derivation of its third integral in terms of the scalar product of the angular momenta about the two fixed centres. This is then generalised to find the general form of the…

We establish derivative estimates of solution of elliptic system in narrow regions.

Because of its apparent complexity, the discussion of Wigner rotation is usually reduced to the study of Thomas precession, which is too specific a case to allow a deep understanding of boost composition. However, by simple arguments and…

We give a very short proof of the Golden-Thompson inequality

A simple proof is given of the known fact that an m-times continuously differentiable function on the real line can be approximated along with its derivatives by an entire function and its respective derivatives.

We will give several reduction theorems for Noether's problem.