articleTop 1% cited
The planar approximation. II
Journal of Mathematical Physics · 1980 · Vol. 21(3) · pp. 411–421
C. Itzykson✉(CEA Paris-Saclay)Jean-Bernard Zuber(CEA Paris-Saclay)
Abstract
The planar approximation is reconsidered. It is shown that a saddle point method is ineffective, due to the large number of degrees of freedom. The problem of eliminating angular variables is illustrated on a simple model coupling two N×N matrices.
Matrix Theory and AlgorithmsScientific Research and DiscoveriesNumerical methods for differential equationsPlanarSaddle pointSimple (philosophy)MathematicsCoupling (piping)Degrees of freedom (physics and chemistry)Point (geometry)Mathematical analysisPhysicsMathematical physics
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References
A two-dimensional model for mesons
Nuclear Physics B · 1974 · 1,550 citations
A planar diagram theory for strong interactions
Nuclear Physics B · 1974 · 4,318 citations
Planar diagrams
Communications in Mathematical Physics · 1978 · 1,362 citations
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