Letters to the Editor

Marcelo Viana
IMPA - Instituto Nacional de Matemática Pura e Aplicada, Rio de Janeiro, Brazil
Ulf Persson
Chalmers University of Technology, Göteborg, Sweden
Volker Mehrmann
Technische Universität Berlin, Germany

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Cite this article

Marcelo Viana, Ulf Persson, Volker Mehrmann, Letters to the Editor. EMS Newsl. 112 (2019), pp. 55–59