In mathematical complex analysis, a quasiconformal mapping is a (weakly differentiable) homeomorphism between plane domains which to first order takes small circles to small ellipses of bounded eccentricity. Quasiconformal mappings are a generalization of conformal mappings that permit the bounded distortion of angles locally.
In mathematical complex analysis, a quasiconformal mapping is a (weakly differentiable) homeomorphism between plane domains which to first order takes small circles to small ellipses of bounded eccentricity. Quasiconformal mappings are a generalization of conformal mappings that permit the bounded distortion of angles locally.
Source: Wikipedia "Quasiconformal mapping" · CC BY-SA 4.0
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