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 manifolds by means of a special kind of edge-colored graphs, called crystallizations. Within this representation theory, Bracho and Montejano introduced in 1987 a nonnegative numerical invariant, called the reduced complexity, for any closed $n$-dimensional PL manifold. Here we consider this invariant, and extend in this context the concept of average order first introduced by Luo and Stong in 1993, and successively investigated by Tamura in 1996 and 1998. Then we obtain some classification results for closed connected smooth low-dimensional manifolds according to reduced complexity and average order. Finally, we answer to a question posed by Trout in 2013.
@article{10_37236_7493,
author = {Alberto Cavicchioli and Fulvia Spaggiari},
title = {On graph-theoretical invariants of combinatorial manifolds},
journal = {The electronic journal of combinatorics},
year = {2019},
volume = {26},
number = {3},
doi = {10.37236/7493},
zbl = {1429.57023},
url = {http://geodesic.mathdoc.fr/articles/10.37236/7493/}
}
TY - JOUR
AU - Alberto Cavicchioli
AU - Fulvia Spaggiari
TI - On graph-theoretical invariants of combinatorial manifolds
JO - The electronic journal of combinatorics
PY - 2019
VL - 26
IS - 3
UR - http://geodesic.mathdoc.fr/articles/10.37236/7493/
DO - 10.37236/7493
ID - 10_37236_7493
ER -
%0 Journal Article
%A Alberto Cavicchioli
%A Fulvia Spaggiari
%T On graph-theoretical invariants of combinatorial manifolds
%J The electronic journal of combinatorics
%D 2019
%V 26
%N 3
%U http://geodesic.mathdoc.fr/articles/10.37236/7493/
%R 10.37236/7493
%F 10_37236_7493
Alberto Cavicchioli; Fulvia Spaggiari. On graph-theoretical invariants of combinatorial manifolds. The electronic journal of combinatorics, Tome 26 (2019) no. 3. doi: 10.37236/7493
