caa a22 4500 469035684 CHVBK 20180323132755.0 cr unu---uuuuu 170328e19920101xx s 000 0 eng 10.1007/BF01018815 doi (NATIONALLICENCE)springer-10.1007/BF01018815 Variational perturbation theory. The ϕ 2k oscillator [Elektronische Daten] [L. Korsun, A. Sisakyan, I. Solovtsov] Variational perturbation theory is used to study the anharmonicϕ 2k oscillator in the strong coupling limit. Nonperturbative expressions are obtained for the vacuum energy, the Green's function, and the effective potential. Plenum Publishing Corporation, 1992 Korsun L. aut Sisakyan A. aut Solovtsov I. aut Theoretical and Mathematical Physics Kluwer Academic Publishers-Plenum Publishers 90/1(1992-01-01), 22-34 0040-5779 90:1<22 1992 90 11232 https://doi.org/10.1007/BF01018815 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01018815 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Korsun L. aut NATIONALLICENCE 700 1- Sisakyan A. aut NATIONALLICENCE 700 1- Solovtsov I. aut NATIONALLICENCE 773 0- Theoretical and Mathematical Physics Kluwer Academic Publishers-Plenum Publishers 90/1(1992-01-01), 22-34 0040-5779 90:1<22 1992 90 11232 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer