The notion of renormalization group is not well defined. It arises in theories in which a prominent role is played by scale invariance or covariance properties, of various quantities, with respect to a noninvertible transformation of coordinates. The noninvertibility is an essential feature; it is supposed to allow one to reduce effectively the difficulty of the problem. The Book illustrates important examples of the method.
Renormalization group / Benfatto, G; Gallavotti, Giovanni. - STAMPA. - (1995), pp. 1-143.
Renormalization group
GALLAVOTTI, Giovanni
1995
Abstract
The notion of renormalization group is not well defined. It arises in theories in which a prominent role is played by scale invariance or covariance properties, of various quantities, with respect to a noninvertible transformation of coordinates. The noninvertibility is an essential feature; it is supposed to allow one to reduce effectively the difficulty of the problem. The Book illustrates important examples of the method.File allegati a questo prodotto
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