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Modifications of Tutte–Grothendieck invariants and Tutte polynomials [PDF]

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
Generalized Tutte–Grothendieck invariants are mappings from the class of matroids to a commutative ring that are characterized recursively by contraction–deletion rules. Well known examples are Tutte, chromatic, tension and flow polynomials.
Martin Kochol
doaj   +5 more sources

Fractional dynamic system simulating the growth of microbe [PDF]

open access: yesAdvances in Difference Equations, 2021
There are different approaches that indicate the dynamic of the growth of microbe. In this research, we simulate the growth by utilizing the concept of fractional calculus.
Samir B. Hadid, Rabha W. Ibrahim
doaj   +2 more sources

Computing Tutte Polynomials [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We present a new edge selection heuristic and vertex ordering heuristic that together enable one to compute the Tutte polynomial of much larger sparse graphs than was previously doable.
Michael Monagan
doaj   +4 more sources

Simulating quantum computations with Tutte polynomials [PDF]

open access: yesnpj Quantum Information, 2021
We establish a classical heuristic algorithm for exactly computing quantum probability amplitudes. Our algorithm is based on mapping output probability amplitudes of quantum circuits to evaluations of the Tutte polynomial of graphic matroids.
Ryan L. Mann
doaj   +4 more sources

Evaluations of topological Tutte polynomials [PDF]

open access: yesCombinatorics, Probability and Computing, 2014
We find new properties of the topological transition polynomial of embedded graphs, $Q(G)$. We use these properties to explain the striking similarities between certain evaluations of Bollob\'as and Riordan's ribbon graph polynomial, $R(G)$, and the ...
Aigner   +6 more
core   +5 more sources

The multivariate arithmetic Tutte polynomial [PDF]

open access: yesTransactions of the American Mathematical Society, 2012
We introduce an arithmetic version of the multivariate Tutte polynomial, and (for representable arithmetic matroids) a quasi-polynomial that interpolates between the two.
Brändén, Petter, Moci, Luca
core   +13 more sources

A Tutte polynomial for toric arrangements [PDF]

open access: yesTransactions of the American Mathematical Society, 2010
We introduce a multiplicity Tutte polynomial M(x,y), with applications to zonotopes and toric arrangements. We prove that M(x,y) satisfies a deletion-restriction recurrence and has positive coefficients.
Ad Alessandro Pucci, Luca Moci
core   +5 more sources

Graph polynomials associated with Dyson-Schwinger equations [PDF]

open access: yesMathematica Moravica, 2023
Quantum motions are encoded by a particular family of recursive Hochschild equations in the renormalization Hopf algebra which represent Dyson-Schwinger equations, combinatorially.
Shojaei-Fard Ali
doaj   +1 more source

Relaxations of the matroid axioms I: Independence, Exchange and Circuits [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
Motivated by a question of Duval and Reiner about higher Laplacians of simplicial complexes, we describe various relaxations of the defining axioms of matroid theory to obtain larger classes of simplicial complexes that contain pure shifted simplicial ...
Jose ́ Alejandro Samper
doaj   +1 more source

The arithmetic Tutte polynomials of the classical root systems [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2014
Many combinatorial and topological invariants of a hyperplane arrangement can be computed in terms of its Tutte polynomial. Similarly, many invariants of a hypertoric arrangement can be computed in terms of its arithmetic Tutte polynomial. We compute the
Federico Ardila   +2 more
doaj   +1 more source

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