Submitted by Charles dos Anjos Moreira null (charles.anjos@hotmail.com) on 2017-11-30T00:05:25Z No. of bitstreams: 1 Versão Final - Charles dos Anjos Moreira.pdf: 1350502 bytes, checksum: bbaf5a250d792183c0b0e14bfc5f34dd (MD5) / Approved for entry into archive by Adriana Aparecida Puerta null (dripuerta@rc.unesp.br) on 2017-11-30T12:32:37Z (GMT) No. of bitstreams: 1 moreira_ca_me_rcla.pdf: 1350502 bytes, checksum: bbaf5a250d792183c0b0e14bfc5f34dd (MD5) / Made available in DSpace on 2017-11-30T12:32:37Z (GMT). No. of bitstreams: 1 moreira_ca_me_rcla.pdf: 1350502 bytes, checksum: bbaf5a250d792183c0b0e14bfc5f34dd (MD5) Previous issue date: 2017-11-01 / Esse trabalho trata de elementos da Topologia Algébrica, a qual tem como fundamental aplicação abordar questões acerca de Espaços Topológicos sob o ponto de vista algébrico. Uma das questões é tentar responder se dois espaços topológicos X e Y são homeomorfos. Neste sentido, o grupo fundamental é uma ferramenta algébrica útil por se tratar de um invariante topológico. Além disso, apresentamos o Teorema de van Kampen do ponto de vista da Linguagem de Categorias e Funtores. / This work treats of elements of the Algebraic Topology, which has as fundamental application to approach subjects concerning Topological Spaces under the algebraic point of view. One of the subjects is to try to answer if two topological spaces X and Y are homeomorphics. In this sense, the fundamental group is an useful algebraic tool for treating of an topological invariant. In addition, we presented the van Kampen's Theorem of the point of view of the language of Categories and Functors.