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Cited by 468

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

Nonlinear Models in2+εDimensions

Open access
Friedan, D.·1980·Physical Review Letters

Abstract

A generalization of the nonlinear $\ensuremath{\sigma}$ model is considered. The field takes values in a compact manifold $M$ and the coupling is determined by a Riemannian metric on $M$. The model is renormalizable in $2+\ensuremath{\epsilon}$ dimensions, the renormalization group acting on the infinite-dimensional space of Riemannian metrics. Topological properties of the $\ensuremath{\beta}$ function and solutions of the fixed-point equation ${R}_{\mathrm{ij}}\ensuremath{-}\ensuremath{\alpha}{g}_{\mathrm{ij}}={\ensuremath{\nabla}}_{i}{v}_{j}+{\ensuremath{\nabla}}_{j}{v}_{i}$, $\ensuremath{\alpha}=\ifmmode\pm\else\textpm\fi{}1 or 0$, are discussed.

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Metadata

Authors
Friedan, D.
Venue
Physical Review Letters
Published
1980-09-29
Volume
45
Issue
13
Pages
1057-1060
ISSN
0031-9007 (ISSN-L)
OpenAlex
W1494329156
Cited by
468
References
9
FWCI
2.83
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Nonlinear Models in2+εDimensions. https://app.cochat.ai/papers/10.1103/physrevlett.45.1057
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Friedan, D. (1980). Nonlinear Models in2+εDimensions. Physical Review Letters. https://doi.org/10.1103/physrevlett.45.1057

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