TY - JOUR AU - Robles-Pérez, Aureliano M. AU - Rosales González, José Carlos PY - 2016 SN - 0933-7741 SN - 1435-5337 UR - http://hdl.handle.net/10481/49801 AB - Let N be the set of nonnegative integers. A problem about how to transport profitably an organized group of persons leads us to study the set T formed by the integers n such that the system of inequalities, with nonnegative integer coefficients,... LA - eng PB - Walter de Gruyter GmbH KW - Diophantine inequalities KW - Submonoids KW - Numerical semigroups KW - Non-homogeneous patterns KW - Frobenius varieties KW - Trees KW - Profitable transport TI - Numerical semigroups in a problem about cost-effective transport DO - 10.1515/forum-2015-0123 ER -