Este libro está destinado a iniciar a los estudiantes del primer ciclo universitario en la Topología algebraica. Los principales temas que se tratan son: variedades de dimensión dos, el grupo fundamental y espacios recubridores, además de la teoría de grupos necesaria. Los conocimientos previos necesarios son, unos rudimentos de teoría de grupos y un primer semestre de topología general.
This book essentially covers the first section of Hatcher and maybe the latter half of Munkres. I regret not finding this book earlier when I was still learning the subjects the book presents, but reading about the content again, I find this book one of the most concise presentations on it. In addition, the chapter on free groups and universal properties gives a good introduction to some useful ideas in category theory.
I've been having one of 'those' email discussions and have pulled out several of the old standards!
Referring to this book as an Introduction is almost comical, but for one versed in the language of mathematics, it is quite readable. There are a number of notes in the margin of my copy regarding some minor set theory notation errors such as 'element of' being used in place of 'subset of' and a couple of proofs that are strangely missing a line or referencing a a lemma I could never find??
Other than that this is one of the basic 'go-to' books on this fascinating 'for me anyway' and somewhat obscure topic.
Maybe the perspective of someone who favors analysis, but I found the proofs very lacking in rigor. In some cases, it was simply a drawing with a little argumentation behind it.