02225027

j

02225027 Boxer, Laurence Properties of digital homotopy. J. Math. Imaging Vis. 22, No. 1, 19-26 (2005). 2005 Springer, Dordrecht EN digital image digitally continuous homeomorphism retraction homotopy fundamental group digital topology

doi:10.1007/s10851-005-4780-y

Summary: Several recent papers have adapted notions of geometric topology to the emerging field of `digital topology.' An important notion is that of digital homotopy. In this paper, we study a variety of digitally-continuous functions that preserve homotopy types or homotopy-related properties such as the digital fundamental group.