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Katrin FAESSLER

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“Logarithmic coordinates”<br />

(z, t) =<br />

where (ξ, ψ, η) ∈ R × (− π π<br />

2 , 2 ) × R.<br />

<br />

i cos ψe ξ+i(ψ−3η)<br />

2 , − sin ψe ξ<br />

,<br />

<strong>Katrin</strong> Fässler (University of Helsinki) A stretch map on H 1<br />

HCAA 2012 9 / 23

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