What is {subject} of {inventor or discoverer} of {Bogdanov-Takens bifurcation} ?
Who is {subject} of {innovator or pioneer} of {Bogdanov-Takens bifurcation} ?
Who is {subject} of {inventor or discoverer} of {Bogdanov-Takens bifurcation} ?
SELECT ?l WHERE { resource:Bogdanov-Takens_bifurcation property:discoverer_or_inventor ?h . ?h property:field_of_work ?l }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q4937510> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P61>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P101> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q4937510 wdt:P61 ?X . ?X wdt:P101 ?answer}
differential geometry bifurcation theory theory of differential equations