Tipo di tesi
Tesi di laurea magistrale
Titolo
Conteggio di superfici essenziali in una 3-varietà
Corso di studi
MATEMATICA
Parole chiave
- conteggio
- counting
- essential
- essenziale
- manifold
- normal
- normale
- varietà
Data inizio appello
29/10/2021
Riassunto (Italiano)
Let us consider the problem about counting the number of isotopy classes of essential surfaces in a compact, orientable, irriducible, ∂-irriducible 3-manifold M.
Let b(k) the number of isotopy classes of essential surfaces with characteristic equal to k. We say that a generating function is short if it is the quotient of two rational polynomials where the denominator is a product of cyclotomic polynomials.
The main theorem of the thesis states that if M is atoroidal and acylindric and it does not contain closed non-orientable essential surfaces, then the generating function of b(-2k) is short.