BINGE 发表于 2025-3-28 15:08:52
http://reply.papertrans.cn/32/3198/319728/319728_41.pngNomogram 发表于 2025-3-28 21:00:54
“Heidegger I,” “Heidegger II,” and ,(Chapter 11) which is generally tedious and at best only approximate. This is because, for other than the first-order results, using perturbation theory one has to evaluate infinite sums in each order (cf. expressions (11.14), (11.15) which one generally approximates by selecting only a few terms which arise to that order.