Submitted by Alex Melges Barbosa (alex.melgesb@gmail.com) on 2017-03-02T15:41:01Z No. of bitstreams: 1 PDF_final_cd - Alex.pdf: 1031527 bytes, checksum: d71a279fd3f7c761ebeb48e598e07b22 (MD5) / Approved for entry into archive by LUIZA DE MENEZES ROMANETTO (luizamenezes@reitoria.unesp.br) on 2017-03-08T13:52:00Z (GMT) No. of bitstreams: 1 barbosa_am_me_sjrp.pdf: 1031527 bytes, checksum: d71a279fd3f7c761ebeb48e598e07b22 (MD5) / Made available in DSpace on 2017-03-08T13:52:00Z (GMT). No. of bitstreams: 1 barbosa_am_me_sjrp.pdf: 1031527 bytes, checksum: d71a279fd3f7c761ebeb48e598e07b22 (MD5) Previous issue date: 2017-02-22 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Neste trabalho, apresentaremos uma descrição axiomática das classes de Stiefel-Whitney e, assumindo válidos estes axiomas, mostraremos algumas de suas aplicações. Posteriormente, definiremos as classes de Stiefel-Whitney e mostraremos que esta definição satisfaz os axiomas, além de garantir a unicidade das classes de Stiefel-Whitney. Por fim, definiremos a classe de Euler e mostraremos algumas de suas aplicações, bem como sua relação com as classes de Stiefel-Whitney. / In this work, we will present an axiomatic description of the Stiefel-Whitney classes and, taking these axioms true, we will show some of their applications. After that, we will define the Stiefel-Whitney classes and we will show this definition meets the axioms, besides it ensures the unity of the Stiefel-Whitney classes. Lastly, we will define the Euler class and we will show some of its applications as well as its relationship with the Stiefel-Whitney classes.