The decomposition algorithm for skew-symmetrizable exchange matrices
The electronic journal of combinatorics, Tome 19 (2012) no. 2
Some skew-symmetrizable integer exchange matrices are associated to ideal (tagged) triangulations of marked bordered surfaces. These exchange matrices admit unfoldings to skew-symmetric matrices. We develop a combinatorial algorithm that determines if a given skew-symmetrizable matrix is of such type. This algorithm generalizes the one in Weiwen Gu's Decomposition Algorithm for Median Graph of Triangulation of a Bordered 2D Surface. As a corollary, we use this algorithm to determine if a given skew-symmetrizable matrix has finite mutation type.
DOI :
10.37236/2447
Classification :
65D18, 05C50
Mots-clés : cluster algebra, triangulation, integer exchange matrices, marked bordered surfaces, skew-symmetric matrices, combinatorial algorithm, median graph
Mots-clés : cluster algebra, triangulation, integer exchange matrices, marked bordered surfaces, skew-symmetric matrices, combinatorial algorithm, median graph
Affiliations des auteurs :
Weiwen Gu  1
@article{10_37236_2447,
author = {Weiwen Gu},
title = {The decomposition algorithm for skew-symmetrizable exchange matrices},
journal = {The electronic journal of combinatorics},
year = {2012},
volume = {19},
number = {2},
doi = {10.37236/2447},
zbl = {1256.65020},
url = {http://geodesic.mathdoc.fr/articles/10.37236/2447/}
}
Weiwen Gu. The decomposition algorithm for skew-symmetrizable exchange matrices. The electronic journal of combinatorics, Tome 19 (2012) no. 2. doi: 10.37236/2447
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