Search arXiv⌕ Search
Home/Archive/arXiv

arXiv · math/0402259

A New Approach to Renormalization, Using Zeta regularization

Jose Javier Garcia Moreta
View original source ↗Read source document ↗Export metadata ↓

Abstract

In this paper we present a method to deal with divergences in perturbation theory using the method of the Zeta regularization, first of all we use the Euler-Mc Laurin Sum formula to associate the divergent integral to a divergent sum in the form 1+2^{m}+3^{m}+... After that we find a recurrence formula for the integrals and apply zeta regularization techniques to obtain finite results for the divergent series. (Through all the paper we use the notation m, for the power of the modulus of p, so we must not confuse it with the value of the mass of the quantum particle) changes: added Bibliography about ramanujan Resummation and references of Zeta regularization in Hardy,s Book "divergent series".

Explore related subjects

math.GM

Keep this discovery

BibTeXRIS

Jose Javier Garcia Moreta. 2007-03-06. A New Approach to Renormalization, Using Zeta regularization. https://arxiv.org/abs/math/0402259

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

arXiv2026

Average Chord Lengths in a Triangle

Let $P$ be a point inside a triangle $T$. We consider the average length of the chords of $T$ through $P$, where the direction of the chord is chosen uniformly. An elementary formula is obtained in terms of the distances from $P$ to the sides and vertices of the triangle. Several classical triangle centers give especially simple specializations. For example, if $I$ is the incenter, then \[ M_T(I)=\frac{2r}{\pi} \log\left(\cot\frac A4\cot\frac B4\cot\frac C4\right). \] Our main result is the sharp inequality \[ M_T(P)\le \frac{p}{\pi\sqrt3}\log(2+\sqrt3), \] valid simultaneously for every triangle of perimeter $p$ and every interior point $P$. Thus, among all such pairs $(T,P)$, the largest possible average chord length occurs only when $T$ is equilateral and $P$ is its center. The proof is an elementary symmetrization argument. We close with brief remarks relating the problem to the radial center of a convex body, the electrostatic potential center of a triangle, and dual quermassintegrals.

math.GM↗
arXiv2026

A Proof of Liu's Conjecture on the Fundamental Triangle Inequality

Let $a,b,c$ be the side lengths of a triangle, and let $R$ and $r$ denote its circumradius and inradius, respectively. We prove a conjecture of Liu stating that \[\sum_{\mathrm{cyc}} \left(\frac{a(b+c-a)}{bc}\right)^k \geq 2+\left(\frac{2r}{R}\right)^k,~~k>1, \] with the reverse inequality for $0<k<1$. The proof reduces the problem to three positive variables with fixed sum and product. We also determine the equality cases.

math.GM↗