TY - JOUR T1 - Matematika a nakupovanie A1 - Ivanová, Veronika JA - Obzory matematiky, fyziky a informatiky Y1 - 2011 VL - 40 IS - 1 SP - 13 EP - 21 SN - 1335-4981 N2 - This paper is devoted to the conception of infimal convolution. The first part is devoted to motivation examples from economic practice. Because in practical applications we often use broken lines, these lines will be the object of our investigation in the next part of our paper. ER -