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Busatto, Alberto (2018) Homology and cohomology of orientable topological manifolds. The Poincar´e duality theorem. [Magistrali biennali]

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Abstract

As the name itself suggests, algebraic topology is a branch of mathematics which is halfway between algebra and geometry. The aim of this subject is to associate algebraic objects to topological spaces in such a way that the association is functorial and respects the shape of the space. This means that topological spaces which can be obtained by applying continuous transformations to a fixed one (formally, spaces with the same homotopy type) must have the same associated algebraic objects. One of the first and most important tool in this direction is the fundamental group, which is constructed starting from homotopy equivalence classes of loops in the space and then endowing the resulting set with an appropriate operation in such a way that it becomes a group. This object encodes topological properties of the space into some algebraic structures as groups and it can be shown to be not only invariant under omeomorphisms but also homotopy invariant. While this property makes the fundamental group a suitable tool for distinguishing different spaces, this is not always sufficient

Item Type:Magistrali biennali
Subjects:Area 01 - Scienze matematiche e informatiche > MAT/03 Geometria
Codice ID:59516
Relatore:Longo, Matteo
Data della tesi:2018
Biblioteca:Polo di Scienze > Biblioteca di Matematica

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