Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Variational_perturbation_theory> ?p ?o. }
Showing items 1 to 19 of
19
with 100 items per page.
- Variational_perturbation_theory abstract "In mathematics, variational perturbation theory (VPT) is a mathematical method to convert divergent power series in a small expansion parameter, say,into a convergent series in powers,where is a critical exponent (the so-called index of "approach to scaling" introduced by Franz Wegner). This is possible with the help of variational parameters, which are determined by optimization order by order in . The partial sums are converted to convergent partial sums by a method developed in 1992.Most perturbation expansions in quantum mechanics are divergent for any small coupling strength . They can be made convergent by VPT (for details see the first textbook cited below). The convergence is exponentially fast.After its success in quantum mechanics, VPT has been developed further to become an important mathematical tool in quantum field theory with its anomalous dimensions. Applications focus on the theory of critical phenomena. It has led to the most accurate predictions of critical exponents.More details can be read here.".
- Variational_perturbation_theory wikiPageExternalLink crit.htm.
- Variational_perturbation_theory wikiPageExternalLink b5.
- Variational_perturbation_theory wikiPageExternalLink b8.
- Variational_perturbation_theory wikiPageExternalLink 4733.html.
- Variational_perturbation_theory wikiPageExternalLink 5057.html.
- Variational_perturbation_theory wikiPageID "2029635".
- Variational_perturbation_theory wikiPageRevisionID "597762520".
- Variational_perturbation_theory hasPhotoCollection Variational_perturbation_theory.
- Variational_perturbation_theory subject Category:Asymptotic_analysis.
- Variational_perturbation_theory subject Category:Perturbation_theory.
- Variational_perturbation_theory comment "In mathematics, variational perturbation theory (VPT) is a mathematical method to convert divergent power series in a small expansion parameter, say,into a convergent series in powers,where is a critical exponent (the so-called index of "approach to scaling" introduced by Franz Wegner). This is possible with the help of variational parameters, which are determined by optimization order by order in .".
- Variational_perturbation_theory label "Variational perturbation theory".
- Variational_perturbation_theory label "نظرية التغاير".
- Variational_perturbation_theory sameAs m.06g9mg.
- Variational_perturbation_theory sameAs Q7915801.
- Variational_perturbation_theory sameAs Q7915801.
- Variational_perturbation_theory wasDerivedFrom Variational_perturbation_theory?oldid=597762520.
- Variational_perturbation_theory isPrimaryTopicOf Variational_perturbation_theory.