OPEN GROUP TRANSFORMATIONS
نویسندگان
چکیده
منابع مشابه
Optimization of Renormalization Group Transformations
This thesis examines the optimization of renormaiization group transformations. To do this I have examined simple spin models where some understanding of the problems which arise and particularly the systematic errors can be acquired. In the first chapter I have given a brief description of critical phenomena which provides the motivation for the study of the renormalization group in this rest ...
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A p p r o x i m a t e r ecur s ion re la t ions wh ich give uppe r a n d lower b o u n d s on the free energy are descr ibed. Op t i ma l ca lcula t ions o f the free energy can t hen be ob ta ined by t rea t ing pa r ame t e r s wi th in the r eno rma l i za t ion equat ions var ia t ional ly . As an example , a par t icular ly s imple lower b o u n d a p p r o x i m a t i o n which preserves ...
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ژورنال
عنوان ژورنال: Modern Physics Letters A
سال: 1999
ISSN: 0217-7323,1793-6632
DOI: 10.1142/s0217732399001735