Abstract
Exchange or symmetry-adapted perturbation theories often converge slowly or even diverge. By means of calculations based on the Epstein-Johnson model it is demonstrated that Padé approximants to the series have much better convergence properties and can converge when the associated series diverge. Similar conclusions are found for the recently introduced symmetry-adapted double perturbation theories.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
