Title of article :
Degree-one maps of handlebodies
Author/Authors :
Berge، نويسنده , , John، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 1996
Abstract :
The major result of this paper answers a question raised by Waldhausen in 1970 by showing that if M and N are orientable three-dimensional handlebodies with genus(M) ⪢ genus(N) ⪢ 1, then there exist an infinite number of inequivalent proper degree-one maps from M to N.