Matroid database

Matroid 3.10.1422

Label3.10.1422
Idr3_n10_0******0******0***0******0****************0****************************0*******0***********************0****0********0**
Rank3
n10
12345678910

Affine diagram.

Basic invariants

Bases109
Circuits144
Flats35
Cyclic flats13
Loops0
Connected components1
Automorphisms1
Beta invariant17
Girth3
Simpleyes
Connectedyes
Uniformnot computed
Looplessyes
Colooplessyes
Pavingyes
Laminarno
Nestedno
Self dualno
Identically self dualno
Series parallelno
Transversalno
Supersolvableno
Divisionally freeno
Orientableyes
Three linesyes

Representability

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

Realization space

Statuscomputed_realization_space
Dimension of realization space4
Expected dimension over ℤ2
Components of realization spaceunknown
Free realization spaceno
Principal idealyes
Birational typeempty
how determined: birational type method: empty_char0
Birational type components
show
[]
Good basis3,4,5
Good basis v23,4,8

Geometry

Realization space: scheme simple core idr3_n10_0******0******0***0******0****************0****************************0*******0***********************0****0********0**
Smooth char 0yes
Singular primes[]
Realization space: smooth over ℚnot computed
Realization space: smooth over ℤyes
how determined: smoothness method: empty
Realization space: is regular schemeyes
how determined: regularity method: empty
Realization space: singular fiber primes[]
how determined: singular fiber primes method: smooth_over_ZZ
Realization space: singular fiber characteristicsnot computed
Realization space: characteristic dimensions
show
[]
how determined: characteristic dimensions method: empty_characteristic_set
Realization space: characteristic dimension unexpectedno
Realization space: characteristic dimension variesno

Other

Char poly splitsfalse
Simplicial arrangementno
Realization space: n qbar components0

Tutte polynomial

\(T = x_{0}^{3} + 7 x_{0}^{2} + 11 x_{0} x_{1} + 17 x_{0} + x_{1}^{7} + 3 x_{1}^{6} + 6 x_{1}^{5} + 10 x_{1}^{4} + 15 x_{1}^{3} + 21 x_{1}^{2} + 17 x_{1}\)

Realization space

Ring\(\mathbb{Z}[x_{1}, x_{2}, x_{3}, x_{4}, x_{5}, x_{6}, x_{7}]\)
Defining ideal\(\left(1\right)\)
Inequations\(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\), \(0 \neq 0\)
Realization matrixnone (empty realization space)

Combinatorics

Computed on the fly from the id.

Bases (109){1,2,4} {1,3,4} {2,3,4} {1,2,5} {1,3,5} {2,3,5} {2,4,5} {3,4,5} {1,2,6} {1,3,6} {2,3,6} {1,4,6} {3,4,6} {1,5,6} {2,5,6} {4,5,6} {1,2,7} {1,3,7} {2,3,7} {1,4,7} {2,4,7} {1,5,7} {2,5,7} {3,5,7} {4,5,7} {1,6,7} {2,6,7} {3,6,7} {4,6,7} {5,6,7} {1,2,8} {1,3,8} {2,3,8} {1,4,8} {2,4,8} {3,4,8} {1,5,8} {3,5,8} {4,5,8} {1,6,8} {2,6,8} {3,6,8} {4,6,8} {5,6,8} {1,7,8} {2,7,8} {3,7,8} {4,7,8} {5,7,8} {6,7,8} {1,2,9} {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} {4,6,9} {5,6,9} {2,7,9} {3,7,9} {4,7,9} {5,7,9} {6,7,9} {1,8,9} {2,8,9} {4,8,9} {5,8,9} {6,8,9} {7,8,9} {1,2,10} {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} {5,6,10} {1,7,10} {2,7,10} {3,7,10} {4,7,10} {6,7,10} {1,8,10} {2,8,10} {3,8,10} {5,8,10} {6,8,10} {7,8,10} {1,9,10} {2,9,10} {3,9,10} {4,9,10} {5,9,10} {7,9,10} {8,9,10}
Non-bases (11){1,2,3} {1,4,5} {2,4,6} {3,5,6} {3,4,7} {2,5,8} {1,7,9} {3,8,9} {5,7,10} {4,8,10} {6,9,10}
Circuits (144){1,2,3} {1,4,5} {2,3,4,5} {2,4,6} {1,3,4,6} {1,2,5,6} {3,5,6} {1,2,4,7} {3,4,7} {1,2,5,7} {1,3,5,7} {2,3,5,7} {2,4,5,7} {1,2,6,7} {1,3,6,7} {2,3,6,7} {1,4,6,7} {1,5,6,7} {2,5,6,7} {4,5,6,7} {1,2,4,8} {1,3,4,8} {2,3,4,8} {2,5,8} {1,3,5,8} {3,4,5,8} {1,2,6,8} {1,3,6,8} {2,3,6,8} {1,4,6,8} {3,4,6,8} {1,5,6,8} {4,5,6,8} {1,2,7,8} {1,3,7,8} {2,3,7,8} {1,4,7,8} {2,4,7,8} {1,5,7,8} {3,5,7,8} {4,5,7,8} {1,6,7,8} {2,6,7,8} {3,6,7,8} {4,6,7,8} {5,6,7,8} {1,2,4,9} {1,3,4,9} {2,3,4,9} {1,2,5,9} {1,3,5,9} {2,3,5,9} {2,4,5,9} {3,4,5,9} {1,2,6,9} {1,3,6,9} {2,3,6,9} {1,4,6,9} {3,4,6,9} {1,5,6,9} {2,5,6,9} {4,5,6,9} {1,7,9} {2,3,7,9} {2,4,7,9} {2,5,7,9} {3,5,7,9} {4,5,7,9} {2,6,7,9} {3,6,7,9} {4,6,7,9} {5,6,7,9} {1,2,8,9} {3,8,9} {1,4,8,9} {2,4,8,9} {1,5,8,9} {4,5,8,9} {1,6,8,9} {2,6,8,9} {4,6,8,9} {5,6,8,9} {2,7,8,9} {4,7,8,9} {5,7,8,9} {6,7,8,9} {1,2,4,10} {1,3,4,10} {2,3,4,10} {1,2,5,10} {1,3,5,10} {2,3,5,10} {2,4,5,10} {3,4,5,10} {1,2,6,10} {1,3,6,10} {2,3,6,10} {1,4,6,10} {3,4,6,10} {1,5,6,10} {2,5,6,10} {4,5,6,10} {1,2,7,10} {1,3,7,10} {2,3,7,10} {1,4,7,10} {2,4,7,10} {5,7,10} {1,6,7,10} {2,6,7,10} {3,6,7,10} {4,6,7,10} {1,2,8,10} {1,3,8,10} {2,3,8,10} {4,8,10} {1,5,8,10} {3,5,8,10} {1,6,8,10} {2,6,8,10} {3,6,8,10} {5,6,8,10} {1,7,8,10} {2,7,8,10} {3,7,8,10} {6,7,8,10} {1,2,9,10} {1,3,9,10} {2,3,9,10} {1,4,9,10} {2,4,9,10} {3,4,9,10} {1,5,9,10} {2,5,9,10} {3,5,9,10} {4,5,9,10} {6,9,10} {2,7,9,10} {3,7,9,10} {4,7,9,10} {1,8,9,10} {2,8,9,10} {5,8,9,10} {7,8,9,10}
Flats by rank (35)
Hyperplanes (23){1,2,3} {1,4,5} {1,6} {2,4,6} {3,5,6} {2,7} {3,4,7} {6,7} {1,8} {2,5,8} {6,8} {7,8} {2,9} {4,9} {5,9} {1,7,9} {3,8,9} {1,10} {2,10} {3,10} {5,7,10} {4,8,10} {6,9,10}
Lines (11){1,2,3} {1,4,5} {2,4,6} {3,5,6} {3,4,7} {2,5,8} {1,7,9} {3,8,9} {5,7,10} {4,8,10} {6,9,10}
Dual (rank 7)

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

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

Loops: none. Parallel classes of size > 1: none.

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