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๐Ÿ” anastasios sidiropoulos ๐Ÿ“‚ Mathematics
Showing 7 results for "anastasios sidiropoulos" in Mathematics
Mathematics Preprint PDF DOI

Electric group for knots and links

Philipp Korablev ยท 2024

In 2014 Andrey Perfiliev introduced the so-called electric invariant for non-oriented knots. This invariant was motivated by using Kirchhoff's laws for the dual graph of the knot diagram. Later, in 20โ€ฆ

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Some Fuzzy Korovkin type Approximation Theorems via Power Series Summability Method

Behar Baxhaku, Purshottam Narain Agrawal, Rahul Shukla ยท 2022

This article provides a power series summability based Korovkin type approximation theorem for any fuzzy sequence of positive linear operators. Using the notion of fuzzy modulus of smoothness, we alsoโ€ฆ

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A geometric method for eigenvalue problems with low rank perturbations

Thomas J. Anastasio, Andrea K. Barreiro, Jared C Bronski ยท 2017

We consider the problem of finding the spectrum of an operator taking the form of a low-rank (rank one or two) non-normal perturbation of a well-understood operator, motivated by a number of problems โ€ฆ

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Lagrangian and Hamiltonian Geometries. Applications to Analytical Mechanics

Radu Miron ยท 2012

The aim of the present text is twofold: to provide a compendium of Lagrangian and Hamiltonian geometries and to introduce and investigate new analytical Mechanics: Finslerian, Lagrangian and Hamiltoniโ€ฆ

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Constant approximation algorithms for embedding graph metrics into trees and outerplanar graphs

Victor Chepoi, Feodor Dragan, Ilan Newman, Yuri Rabinovich, Yann Vaxes ยท 2010

In this paper, we present a simple factor 6 algorithm for approximating the optimal multiplicative distortion of embedding a graph metric into a tree metric (thus improving and simplifying the factor โ€ฆ

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The Geometry of Relativistic Rheonomic Lagrange Spaces

Mircea Neagu ยท 2000

The paper contains a geometrization of a time dependent Lagrangian function defined on the 1-jet space J^1(R,M) which identifies with R\times TM. The reader is invited to compare this geometrization wโ€ฆ

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Metrical Multi-Time Lagrange Geometry of Physical Fields

Mircea Neagu ยท 2000

The author exposes the metrical multi-time Lagrange geometry of physical fields which naturally generalizes the classical Lagrangian developped by Miron and Anastasiei. In other words, one constructs โ€ฆ

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