Matroid database

Matroid 3.10.7598

Label3.10.7598
Idr3_n10_00000000000*********0*********000000***********0****0**00************0****0*0****0**0*************0****00***0*****0*****
Rank3
n10
1,23456,78910

Affine diagram.

Basic invariants

Bases88
Circuits79
Flats21
Cyclic flats12
Loops0
Connected components1
Automorphisms24
Beta invariant6
Girth2
Simpleno
Connectedyes
Uniformnot computed
Looplessyes
Colooplessyes
Pavingno
Laminarno
Nestedno
Self dualno
Identically self dualno
Series parallelno
Transversalno
Supersolvableyes
Divisionally freeyes
Orientableno
Three linesunknown

Representability

Characteristic setcharacteristic 0 and all primes [0]
Realizableyes
Realizable char0yes
Regularno
Binaryno
Ternaryno
Quaternaryyes
Graphicno

Realization space

Statuscomputed_realization_space
Dimension of realization space5
Expected dimension over ℤ1
Components of realization space0
Free realization spaceno
Principal idealyes
Birational typeempty
how determined: birational type method: empty_char0
Birational type components
show
[]
Good basisunknown
Good basis v21,3,6

Geometry

Realization space: scheme simple core idr3_n8_0000************0**********0****0**********0**0***0*****
Smooth char 0unknown
Singular primesunknown
Realization space: smooth over ℚnot computed
Realization space: smooth over ℤno
how determined: smoothness method: simple_core smoothness witness: r3_n8_0000************0**********0****0**********0**0***0*****
Realization space: is regular schemeyes
how determined: regularity method: simple_core regularity witness: r3_n8_0000************0**********0****0**********0**0***0*****
Realization space: singular fiber primes[]
how determined: singular fiber primes method: simple_core
Realization space: singular fiber characteristicsnot computed
Realization space: characteristic dimensions
show
[
 {
  "p": 2,
  "d": 1
 }
]
how determined: characteristic dimensions method: simple_core
Realization space: characteristic dimension unexpectedyes
Realization space: characteristic dimension variesno

Other

Char poly splitstrue
Simplicial arrangementyes
Realization space: n qbar components0

Tutte polynomial

\(T = x_{0}^{3} + 2 x_{0}^{2} x_{1} + 5 x_{0}^{2} + x_{0} x_{1}^{3} + 6 x_{0} x_{1}^{2} + 13 x_{0} x_{1} + 6 x_{0} + x_{1}^{7} + 3 x_{1}^{6} + 6 x_{1}^{5} + 10 x_{1}^{4} + 14 x_{1}^{3} + 14 x_{1}^{2} + 6 x_{1}\)

Realization space

Ring\(\mathbb{Z}[x_{1}]\)
Defining ideal\(\left(2\right)\)
Inequations\(x_{1} - 1 \neq 0\), \(x_{1} \neq 0\), \(x_{1} - 2 \neq 0\)
Realization matrix\(\begin{pmatrix}1 & 1 & 0 & 1 & 1 & 0 & 0 & 0 & 1 & 1 \\ 0 & 0 & 1 & 1 & x_{1} & 0 & 0 & 1 & 1 & x_{1} \\ 0 & 0 & 0 & 0 & 0 & 1 & 1 & 1 & x_{1} - 1 & x_{1} - 1\end{pmatrix}\)

Combinatorics

Computed on the fly from the id.

Bases (88){1,3,6} {2,3,6} {1,4,6} {2,4,6} {3,4,6} {1,5,6} {2,5,6} {3,5,6} {4,5,6} {1,3,7} {2,3,7} {1,4,7} {2,4,7} {3,4,7} {1,5,7} {2,5,7} {3,5,7} {4,5,7} {1,3,8} {2,3,8} {1,4,8} {2,4,8} {3,4,8} {1,5,8} {2,5,8} {3,5,8} {4,5,8} {1,6,8} {2,6,8} {4,6,8} {5,6,8} {1,7,8} {2,7,8} {4,7,8} {5,7,8} {1,3,9} {2,3,9} {1,4,9} {2,4,9} {3,4,9} {1,5,9} {2,5,9} {3,5,9} {4,5,9} {1,6,9} {2,6,9} {3,6,9} {5,6,9} {1,7,9} {2,7,9} {3,7,9} {5,7,9} {1,8,9} {2,8,9} {3,8,9} {4,8,9} {6,8,9} {7,8,9} {1,3,10} {2,3,10} {1,4,10} {2,4,10} {3,4,10} {1,5,10} {2,5,10} {3,5,10} {4,5,10} {1,6,10} {2,6,10} {3,6,10} {4,6,10} {1,7,10} {2,7,10} {3,7,10} {4,7,10} {1,8,10} {2,8,10} {3,8,10} {5,8,10} {6,8,10} {7,8,10} {1,9,10} {2,9,10} {4,9,10} {5,9,10} {6,9,10} {7,9,10} {8,9,10}
Non-bases (32){1,2,3} {1,2,4} {1,3,4} {2,3,4} {1,2,5} {1,3,5} {2,3,5} {1,4,5} {2,4,5} {3,4,5} {1,2,6} {1,2,7} {1,6,7} {2,6,7} {3,6,7} {4,6,7} {5,6,7} {1,2,8} {3,6,8} {3,7,8} {6,7,8} {1,2,9} {4,6,9} {4,7,9} {6,7,9} {5,8,9} {1,2,10} {5,6,10} {5,7,10} {6,7,10} {4,8,10} {3,9,10}
Circuits (79){1,2} {1,3,4} {2,3,4} {1,3,5} {2,3,5} {1,4,5} {2,4,5} {3,4,5} {6,7} {3,6,8} {1,4,6,8} {2,4,6,8} {1,5,6,8} {2,5,6,8} {4,5,6,8} {3,7,8} {1,4,7,8} {2,4,7,8} {1,5,7,8} {2,5,7,8} {4,5,7,8} {1,3,6,9} {2,3,6,9} {4,6,9} {1,5,6,9} {2,5,6,9} {3,5,6,9} {1,3,7,9} {2,3,7,9} {4,7,9} {1,5,7,9} {2,5,7,9} {3,5,7,9} {1,3,8,9} {2,3,8,9} {1,4,8,9} {2,4,8,9} {3,4,8,9} {5,8,9} {1,6,8,9} {2,6,8,9} {1,7,8,9} {2,7,8,9} {1,3,6,10} {2,3,6,10} {1,4,6,10} {2,4,6,10} {3,4,6,10} {5,6,10} {1,3,7,10} {2,3,7,10} {1,4,7,10} {2,4,7,10} {3,4,7,10} {5,7,10} {1,3,8,10} {2,3,8,10} {4,8,10} {1,5,8,10} {2,5,8,10} {3,5,8,10} {1,6,8,10} {2,6,8,10} {1,7,8,10} {2,7,8,10} {3,9,10} {1,4,9,10} {2,4,9,10} {1,5,9,10} {2,5,9,10} {4,5,9,10} {1,6,9,10} {2,6,9,10} {1,7,9,10} {2,7,9,10} {1,8,9,10} {2,8,9,10} {6,8,9,10} {7,8,9,10}
Flats by rank (21)
Hyperplanes (11){1,2,3,4,5} {1,2,6,7} {1,2,8} {3,6,7,8} {1,2,9} {4,6,7,9} {5,8,9} {1,2,10} {5,6,7,10} {4,8,10} {3,9,10}
Lines (7){1,2,3,4,5} {3,6,7,8} {4,6,7,9} {5,8,9} {5,6,7,10} {4,8,10} {3,9,10}
Dual (rank 7)

Revlex encoding in this labeling (not canonicalized, so not linked): *****0*****0***00****0*************0**0****0*0****0************00**0****0***********000000*********0*********00000000000

Bases: {2,4,5,7,8,9,10} {1,4,5,7,8,9,10} {2,3,5,7,8,9,10} {1,3,5,7,8,9,10} {1,2,5,7,8,9,10} {2,3,4,7,8,9,10} {1,3,4,7,8,9,10} {1,2,4,7,8,9,10} {1,2,3,7,8,9,10} {2,4,5,6,8,9,10} {1,4,5,6,8,9,10} {2,3,5,6,8,9,10} {1,3,5,6,8,9,10} {1,2,5,6,8,9,10} {2,3,4,6,8,9,10} {1,3,4,6,8,9,10} {1,2,4,6,8,9,10} {1,2,3,6,8,9,10} {2,4,5,6,7,9,10} {1,4,5,6,7,9,10} {2,3,5,6,7,9,10} {1,3,5,6,7,9,10} {1,2,5,6,7,9,10} {2,3,4,6,7,9,10} {1,3,4,6,7,9,10} {1,2,4,6,7,9,10} {1,2,3,6,7,9,10} {2,3,4,5,7,9,10} {1,3,4,5,7,9,10} {1,2,3,5,7,9,10} {1,2,3,4,7,9,10} {2,3,4,5,6,9,10} {1,3,4,5,6,9,10} {1,2,3,5,6,9,10} {1,2,3,4,6,9,10} {2,4,5,6,7,8,10} {1,4,5,6,7,8,10} {2,3,5,6,7,8,10} {1,3,5,6,7,8,10} {1,2,5,6,7,8,10} {2,3,4,6,7,8,10} {1,3,4,6,7,8,10} {1,2,4,6,7,8,10} {1,2,3,6,7,8,10} {2,3,4,5,7,8,10} {1,3,4,5,7,8,10} {1,2,4,5,7,8,10} {1,2,3,4,7,8,10} {2,3,4,5,6,8,10} {1,3,4,5,6,8,10} {1,2,4,5,6,8,10} {1,2,3,4,6,8,10} {2,3,4,5,6,7,10} {1,3,4,5,6,7,10} {1,2,4,5,6,7,10} {1,2,3,5,6,7,10} {1,2,3,4,5,7,10} {1,2,3,4,5,6,10} {2,4,5,6,7,8,9} {1,4,5,6,7,8,9} {2,3,5,6,7,8,9} {1,3,5,6,7,8,9} {1,2,5,6,7,8,9} {2,3,4,6,7,8,9} {1,3,4,6,7,8,9} {1,2,4,6,7,8,9} {1,2,3,6,7,8,9} {2,3,4,5,7,8,9} {1,3,4,5,7,8,9} {1,2,4,5,7,8,9} {1,2,3,5,7,8,9} {2,3,4,5,6,8,9} {1,3,4,5,6,8,9} {1,2,4,5,6,8,9} {1,2,3,5,6,8,9} {2,3,4,5,6,7,9} {1,3,4,5,6,7,9} {1,2,4,5,6,7,9} {1,2,3,4,6,7,9} {1,2,3,4,5,7,9} {1,2,3,4,5,6,9} {2,3,4,5,6,7,8} {1,3,4,5,6,7,8} {1,2,3,5,6,7,8} {1,2,3,4,6,7,8} {1,2,3,4,5,7,8} {1,2,3,4,5,6,8} {1,2,3,4,5,6,7}

Loops: none. Parallel classes of size > 1: {1,2} {6,7}.

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