Results 11 to 20 of about 83,573 (332)

Polynomial Invariants of Graphs [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
We define two polynomials f ( G ) f(G) and f ∗ ( G ) {f^{\ast }}(G) for a graph G G by a recursive formula with respect to deformation of graphs.
openaire   +2 more sources

A polynomial invariant for a new class of phylogenetic networks.

open access: yesPLoS ONE, 2022
Invariants for complicated objects such as those arising in phylogenetics, whether they are invariants as matrices, polynomials, or other mathematical structures, are important tools for distinguishing and working with such objects.
Joan Carles Pons   +3 more
doaj   +1 more source

POLYNOMIALS REPRESENTING EYNARD-ORANTIN INVARIANTS [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2012
The Eynard-Orantin invariants of a plane curve are multilinear differentials on the curve. For a particular class of genus zero plane curves these invariants can be equivalently expressed in terms of simpler expressions given by polynomials obtained from an expansion of the Eynard-Orantin invariants around a point on the curve.
Norbury, Paul, Scott, Nick
openaire   +2 more sources

Non-Lorentzian IIB supergravity from a polynomial realization of SL(2, ℝ)

open access: yesJournal of High Energy Physics, 2023
We derive the action and symmetries of the bosonic sector of non-Lorentzian IIB supergravity by taking the non-relativistic string limit. We find that the bosonic field content is extended by a Lagrange multiplier that implements a restriction on the ...
Eric A. Bergshoeff   +4 more
doaj   +1 more source

Comment on “flavor invariants and renormalization-group equations in the leptonic sector with massive Majorana neutrinos”

open access: yesJournal of High Energy Physics, 2022
Recently in JHEP 09 (2021) 053, Wang et al. discussed the polynomial ring formed by flavor invariants in the leptonic sector with massive Majorana neutrinos. They have explicitly constructed the finite generating sets of the polynomial rings for both two-
Jianlong Lu
doaj   +1 more source

Polynomial automorphisms and invariants

open access: yesJournal of Algebra, 2003
The tame generators problem asks if the automorphism group of a polynomial ring in \(n\) variables over a field \(k\) can be generated by triangular and linear automorphisms, and this is the case for \(n=2\). After the remarkable result by \textit{I. P. Shestakov} and \textit{U. U. Umirbaev} [J. Am. Math. Soc. 17, No. 1, 181--196 (2004; Zbl 1044.17014),
Essen, A.R.P. van den, Peretz, R.
openaire   +2 more sources

POLYNOMIAL INVARIANTS OF VIRTUAL LINKS [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2003
Properties of polynomial invariants Δi for oriented virtual links are established. The effects of taking mirror images and reversing orientation of the link diagram are described. The relationship between Δ0(u,v) and an invariant of F. Jaeger, L. Kauffman, H. Saleur and J. Sawollek is discussed.
Silver, Daniel S., Williams, Susan G.
openaire   +1 more source

Study of Graphene Networks and Line Graph of Graphene Networks via NM-Polynomial and Topological Indices

open access: yesJournal of Mathematics, 2022
The topological invariants are related to the molecular graph of the chemical structure and are numerical numbers that help us to understand the topology of the concerned chemical structure. With the help of these numbers, many properties of graphene can
Jie Wu   +3 more
doaj   +1 more source

Polynomial invariants and Vassiliev invariants

open access: yesGeometry & Topology Monographs, 2002
Published by Geometry and Topology Monographs at http://www.maths.warwick.ac.uk/gt/GTMon4/paper7.abs ...
Jeong, Myeong-Ju, Park, Chan-Young
openaire   +2 more sources

Introduction to disoriented knot theory

open access: yesOpen Mathematics, 2018
This paper is an introduction to disoriented knot theory, which is a generalization of the oriented knot and link diagrams and an exposition of new ideas and constructions, including the basic definitions and concepts such as disoriented knot ...
Altıntaş İsmet
doaj   +1 more source

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