The paper shows that the composition of a quasiconvex function (taking the value +∞) with the transposition is not necessarily a quasiconvex function.

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Martin Kružík

Inst. of Information Theory and Automation, Czech Academy of Sciences, Pod vodárenskou věží 4, 18208 Praha 8, Czech Republic

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M. Kružík. “On the Composition of Quasiconvex Functions and the Transposition.” Journal of Convex Analysis 6 (1999), No. 1, 207–213. https://doi.org/10.68381/jca06013