Hamada, Sayaka2015-05-132015-05-132015-04-011576-9402https://riunet.upv.es/handle/10251/50150[EN] The aim of this paper is to prove a known fact that the digital line is cotractible. Hence we have that the digital space $({\bf Z}^{n}, \kappa^{n})$ is also cotractible where $({\bf Z}^{n}, \kappa^{n})$ is $n$ products of the digital line $({\bf Z}, \kappa)$.  This is a fundamental property of homotopy theory.Reconocimiento - No comercial - Sin obra derivada (by-nc-nd)Khalimsky topologyDigital $n$-spaceContractibleHomotopyArtículo2015-05-1310.4995/agt.2015.1826Abierto1989-4147