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https://doi.org/10.3336/gm.47.1.19

On exactness of the coarse shape group sequence

Nikola Koceić Bilan   ORCID icon orcid.org/0000-0003-4430-0091 ; Department of Mathematics, University of Split, Teslina 12/III, 21000 Split, Croatia

Puni tekst: engleski, pdf (193 KB) str. 207-223 preuzimanja: 238* citiraj
APA 6th Edition
Koceić Bilan, N. (2012). On exactness of the coarse shape group sequence. Glasnik matematički, 47 (1), 207-223. https://doi.org/10.3336/gm.47.1.19
MLA 8th Edition
Koceić Bilan, Nikola. "On exactness of the coarse shape group sequence." Glasnik matematički, vol. 47, br. 1, 2012, str. 207-223. https://doi.org/10.3336/gm.47.1.19. Citirano 24.10.2021.
Chicago 17th Edition
Koceić Bilan, Nikola. "On exactness of the coarse shape group sequence." Glasnik matematički 47, br. 1 (2012): 207-223. https://doi.org/10.3336/gm.47.1.19
Harvard
Koceić Bilan, N. (2012). 'On exactness of the coarse shape group sequence', Glasnik matematički, 47(1), str. 207-223. https://doi.org/10.3336/gm.47.1.19
Vancouver
Koceić Bilan N. On exactness of the coarse shape group sequence. Glasnik matematički [Internet]. 2012 [pristupljeno 24.10.2021.];47(1):207-223. https://doi.org/10.3336/gm.47.1.19
IEEE
N. Koceić Bilan, "On exactness of the coarse shape group sequence", Glasnik matematički, vol.47, br. 1, str. 207-223, 2012. [Online]. https://doi.org/10.3336/gm.47.1.19

Sažetak
The coarse shape groups are recently introduced. Given a pointed pair (X,X0,x0) and a kN, the relative coarse shape group π*k(X,X0,x0), having the standard relative shape group πk(X,X0,x0) for its subgroup, is defined. They establish a functorial relations of the topological, homotopy and (coarse) shape category to the category of groups. Therefore, the coarse shape groups are new algebraic topological, homotopy and (coarse) shape type invariants. For every pointed pair of metric compacta (X,X0,x0) and for every k>1, the boundary homomorphism ∂k*:π*k (X,X0,x0) → π*k-1 (X0,x0) = π* k-1(X0, {x0},x0) is introduced which induces a natural transformation. The corresponding sequence of the coarse shape groups is exact, although the shape sequence generally failed to be exact. This exactness makes powerful tool for computing coarse shape groups of some particular pointed pairs of metric compacta.

Ključne riječi
Polyhedron; inverse system; pro-category; pro*-category; expansion; shape; coarse shape; homotopy group; shape group; coarse shape group; exactness

Hrčak ID: 82585

URI
https://hrcak.srce.hr/82585

Posjeta: 438 *