Composition of inverse problems with a given logical structure
  The paper presents a method for obtaining problems whose conclusions contain disjunctive propositions. These problems constitute a version of inverse problems with a given logical structure. The logical models in the groups of problems studied have been interpreted comprehensively. Equivalent problems have been given by keeping or not keeping the condition of homogeneity in their conclusion. 
Julia Ninova, Vesselka Mihova
math.HO