Matches in DBpedia 2014 for { ?s ?p In mathematics, the Andrews–Curtis conjecture states that every balanced presentation of the trivial group can be transformed into a trivial presentation by a sequence of Nielsen transformations on the relators together with conjugations of relators, named after James J. Andrews and Morton L. Curtis who proposed it in 1965. It is difficult to verify whether the conjecture holds for a given balanced presentation or not.Although it is believed that the Andrews–Curtis conjecture is false, there are no counter-examples known, nor are there many good ideas for possible counter-examples. It is known that the Zeeman conjecture on collapsibility implies the Andrews–Curtis conjecture.. }
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- Andrews–Curtis_conjecture abstract "In mathematics, the Andrews–Curtis conjecture states that every balanced presentation of the trivial group can be transformed into a trivial presentation by a sequence of Nielsen transformations on the relators together with conjugations of relators, named after James J. Andrews and Morton L. Curtis who proposed it in 1965. It is difficult to verify whether the conjecture holds for a given balanced presentation or not.Although it is believed that the Andrews–Curtis conjecture is false, there are no counter-examples known, nor are there many good ideas for possible counter-examples. It is known that the Zeeman conjecture on collapsibility implies the Andrews–Curtis conjecture.".