Piotr Hajłasz

Visiting Assistant Professor

Department of Mathematics
University of Pittsburgh
301 Thackeray Hall
Pittsburgh, PA 15260, USA
Phone: (412) 624-9074
Fax: (412) 624-8397
hajlasz@pitt.edu

Popularization of Mathematics

Euler's characteristic, or combing one's hair

A jednak jest okragła (in Polish)

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