منابع مشابه
Wegner-Houghton equation and derivative expansion
Alfio Bonanno ∗(1,2), Vincenzo Branchina †(3), Herve Mohrbach ‡(4) and Dario Zappalà § (2,5) Istituto di Astronomia, Università di Catania, viale Andrea Doria 6, 95125, Catania, Italy (2) INFN,Sezione di Catania, corso Italia 57, 95129, Catania, Italy Laboratory of Theoretical Physics , University of Strasbourg, 3,rue de l’Universite, 67000, Strasbourg France LPLI-Institut de Physique, F-57070 ...
متن کاملWegner-Houghton equation in low dimensions
We consider scalar field theories in dimensions lower than four in the context of the Wegner-Houghton renormalization group equations (WHRG). The renormalized trajectory makes a non-perturbative interpolation between the ultraviolet and the infrared scaling regimes. Strong indication is found that in two dimensions and below the models with polynomial interaction are always non-perturbative in ...
متن کاملغزلی بر جان کیتس(john Keats )
جان کیتس (1821-1795) یکی از مشهورترین و مبتکرترین شعرای تاریخ ادبیات انگلستان است . اولین شعری که از وی ثبت شده در تاریخ 1814سروده شده است . و عنوان آن تقلید ی از اسپنسر بوده است . در سال 1817 نخستین و در سال 1818 دومین و در سال 1820 سومین و آخرین جلد مجموعه اشعار وی منتشر شده است . کیتس با داشتن قدرت عظیم تخیل و نبوغ در نوشتن ‘ می توانست دنیای زیبای طبیعت پیرامون خود را به صورت بسیار مطبوع در...
متن کاملJohn Rawnsley
If ∇ is a torsionless connection on the tangent bundle of a manifold M the Weyl curvature W is the part of the curvature in kernel of the Ricci contraction. We give a coordinate free proof of Weyl’s result that W vanishes if and only if (M,∇) is (locally) diffeomorphic to RP with ∇, when transported to RP, in the projective class of ∇LC , the Levi-Civita connection of the Fubini–Study metric on...
متن کاملJohn Ridgway
Dr. John Ridgway died on Saturday the 10th January from heart disease, which had curtailed his activities, both professional and otherwise, during the last six years of his life. John Ridgway went to Clifton College when the family moved from Newcastle-under-Lyme to Bristol. At school his aptitudes were greatest in history and he might well have taken history at University but, fortunately for ...
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ژورنال
عنوان ژورنال: Nature
سال: 2020
ISSN: 0028-0836,1476-4687
DOI: 10.1038/d41586-020-01365-x