Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Alberto Cavicchioli"'
Publikováno v:
Rendiconti di Matematica e delle Sue Applicazioni, Vol 17, Iss 3, Pp 523-539 (1997)
We prove a decomposition theorem for closed connected homotopy equivalent smooth four-manifolds, which partially extends a recent result of [2] to the non-simply connected case. Then we study the question of when a homotopy equivalence between closed
Externí odkaz:
https://doaj.org/article/90e17ba5442d44d78281f23b0285e2e8
Autor:
Alberto Cavicchioli, Fulvia Spaggiari
Publikováno v:
International Journal of Mathematics and Mathematical Sciences, Vol 2006 (2006)
We construct a Heegaard diagram of genus three for the real projective 3-space, which has no waves and pairs of complementary handles. The first example was given by Im and Kim but our diagram has smaller complexity. Furthermore the proof presented h
Externí odkaz:
https://doaj.org/article/ab997ad2f9174d12836036e78382e440
Autor:
Fulvia Spaggiari, Alberto Cavicchioli
Publikováno v:
Journal of Geometry. 112
We consider some families of two-bridge links, including the links $$\mathbf{b}(2 p, 3)$$ , the twisted Whitehead links and the double twist links, and calculate their character varieties. Then we give simple geometrical descriptions of such varietie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86b2e01e7b38e354e0260b33f2d915c7
https://doi.org/10.1007/s00022-021-00608-0
https://doi.org/10.1007/s00022-021-00608-0
Autor:
Fulvia Spaggiari, Alberto Cavicchioli
The goal of this paper is to give some theorems which relate to the problem of classifying combinatorial (resp. smooth) closed 5-manifolds up to piecewise-linear (PL) homeomorphism. For this, we use the combinatorial approach to the topology of PL ma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19144b19a191715aabdb8ae744653e46
https://hdl.handle.net/11380/1234644
https://hdl.handle.net/11380/1234644
Autor:
Fulvia Spaggiari, Alberto Cavicchioli
The goal of this paper is to give some theorems which relate to the problem of classifying combinatorial (resp. smooth) closed manifolds up to piecewise-linear (PL) homeomorphism. For this, we use the combinatorial approach to the topology of PL mani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de67d1427f4a92337b4d3f7dcee205d3
https://hdl.handle.net/11380/1185003
https://hdl.handle.net/11380/1185003
This paper continues the study of four-dimensional Poincare duality cobordism theory from our previous work Cavicchioli et al. (Homol. Homotopy Appl. 18(2):267–281, 2016). Let P be an oriented finite Poincare duality complex of dimension 4. Then, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14628ac1f20540279443872905ea14ec
https://hdl.handle.net/11380/1166859
https://hdl.handle.net/11380/1166859
Publikováno v:
Journal of Geometry. 105:601-614
We study a series of 2-generator Sol-manifolds depending on a positive integer n, introduced by Molnar and Szirmai. We construct them as tetrahedron manifolds and show that they are twofold coverings of the 3-sphere branched over specified links. Fin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a5393afa745849a0295809d853b3784
https://doi.org/10.1007/s00022-014-0222-6
https://doi.org/10.1007/s00022-014-0222-6
Publikováno v:
Volume: 38, Issue: 3 535-557
Turkish Journal of Mathematics
Turkish Journal of Mathematics
We consider 2 types of minimal Poincaré 4-complexes. One is defined with respect to the degree 1-map order. This idea was already present in our previous papers, and more systematically studied later by Hillman. The second type of minimal Poincaré
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae24d45880eae1de0d9535386e492799
https://doi.org/10.3906/mat-1211-54
https://doi.org/10.3906/mat-1211-54
Autor:
Fulvia Spaggiari, Alberto Cavicchioli
Publikováno v:
Journal of Knot Theory and Its Ramifications. 28:1950055
We propose a method to determine the character variety of a class [Formula: see text] of rational knots, which includes the twist knots. The defining polynomials depend only on the variables [Formula: see text] and [Formula: see text]. This answers f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d860efb0aae29310435da94a6c5e2504
https://doi.org/10.1142/s021821651950055x
https://doi.org/10.1142/s021821651950055x