The second is that the Waldhausen Nil groups for a group that maps epimorphically onto the infinite dihedral group can be computed in terms of the Farrell–Bass Nil groups of the index 2 subgroup that maps surjectively to the infinite cyclic group....
OT States,CK Li,AR Sourour - 《Canadian Journal of Mathematics》 被引量: 10发表: 2002年 Strong 3-commutativity preserving maps on prime rings Let be a unital prime ring with characteristic not 2 and containing a nontrivial idempotent. Assume that is a surjective map. It is shown that f ...
As a consequence of such results,we showthat there is nomap f : W → MQ16 that is strongly surjective, i.e., such that MR[ f , a] = min{#(g-1(a))g [ f ]} 6= 0. Here, MQ16 is the orbit space of the 3-sphere S3 with respect to the...
It is well known that S12 cannot prove the injective weak pigeonhole principle for polynomial time functions unless RSA is insecure. In this note we investigate the provability of the surjective (dual) weak pigeonhole principle in S12 for provably weaker function classes. (漏 2006 WILEY-VCH ...
It is well known that S 1 2 cannot prove the injective weak pigeonhole principle for polynomial time functions unless RSA is insecure. In this note we investigate the provability of the surjective (dual) weak pigeonhole principle in S 1 2 for provably weaker function classes. ( 2006 WILEY-...
It is well known that S12 cannot prove the injective weak pigeonhole principle for polynomial time functions unless RSA is insecure. In this note we investigate the provability of the surjective (dual) weak pigeonhole principle in S12 for provably weaker function classes....
Finally, given a hyperbolic triangle group T, we determine the asymptotic probability that a randomly chosen homomorphism φ : T → L2( pn) is surjective, as pn tends to infinity.Marion, ClaudeJournal of Group TheoryC. Marion, Triangle groups and PSL2.q/. J. Group...