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the freiheitssatz of magnus for one-relator groups is one of the cornerstones of combinatorial group theory. in this short note which is mostly expository we discuss the relationship between the freiheitssatz and corre-sponding results in free power series rings over fields. these are related to results of schneerson not readily available in english. this relationship uses a faithful representa...

Objective: to verify and characterize the use of formal non-formal methods protect intellectual property by incubated companies that operate in health sector. Methodology/approach: bibliographic research, research with primary sources, comparative study interaction organizations environment. The companies' source information was obtained through face-to-face interviews field carried out at Celt...