Results 1 to 10 of about 11,534 (108)

Recipe theorem for the Tutte polynomial for matroids, renormalization group-like approach [PDF]

open access: yes, 2013
Using a quantum field theory renormalization group-like differential equation, we give a new proof of the recipe theorem for the Tutte polynomial for matroids.
Duchamp, Gérard H. E.   +3 more
core   +3 more sources

Proto-exact categories of matroids, Hall algebras, and K-theory [PDF]

open access: yes, 2018
This paper examines the category $\mathbf{Mat}_{\bullet}$ of pointed matroids and strong maps from the point of view of Hall algebras. We show that $\mathbf{Mat}_{\bullet}$ has the structure of a finitary proto-exact category - a non-additive ...
Eppolito, Christopher   +2 more
core   +1 more source

Algebraic description of spacetime foam [PDF]

open access: yes, 2001
A mathematical formalism for treating spacetime topology as a quantum observable is provided. We describe spacetime foam entirely in algebraic terms.
Aleksandrov P S   +50 more
core   +4 more sources

Random Sampling in Computational Algebra: Helly Numbers and Violator Spaces [PDF]

open access: yes, 2015
This paper transfers a randomized algorithm, originally used in geometric optimization, to computational problems in commutative algebra. We show that Clarkson's sampling algorithm can be applied to two problems in computational algebra: solving large ...
De Loera, Jesús A.   +2 more
core   +3 more sources

The shuffle Hopf algebra and quasiplanar Wick products

open access: yes, 2007
The operator valued distributions which arise in quantum field theory on the noncommutative Minkowski space can be symbolized by a generalization of chord diagrams, the dotted chord diagrams.
Bahns D   +5 more
core   +1 more source

Topology of quasi divisor graphs associated with non-associative algebra

open access: yesAin Shams Engineering Journal
The visualization of graphs representing algebraic structures has increasingly gained traction in chemical engineering research, emerging as a significant scientific challenge in contemporary studies.
Muhammad Nadeem   +4 more
doaj   +1 more source

Combinatorial Hopf algebras in quantum field theory I

open access: yes, 2004
This manuscript stands at the interface between combinatorial Hopf algebra theory and renormalization theory. Its plan is as follows: Section 1 is the introduction, and contains as well an elementary invitation to the subject.
't Hooft G.   +30 more
core   +2 more sources

$C^*$-algebraic drawings of dendroidal sets

open access: yes, 2019
In recent years the theory of dendroidal sets has emerged as an important framework for higher algebra. In this article we introduce the concept of a $C^*$-algebraic drawing of a dendroidal set. It depicts a dendroidal set as an object in the category of
Mahanta, Snigdhayan
core   +1 more source

Rota-Baxter Algebras in Renormalization of Perturbative Quantum Field Theory

open access: yes, 2006
Recently, the theory of renormalization in perturbative quantum field theory underwent some exciting new developments. Kreimer discovered an organization of Feynman graphs into combinatorial Hopf algebras.
Ebrahimi-Fard, Kurusch, Guo, Li
core   +1 more source

A Chern-Simons approach to Galilean quantum gravity in 2+1 dimensions

open access: yes, 2009
We define and discuss classical and quantum gravity in 2+1 dimensions in the Galilean limit. Although there are no Newtonian forces between massive objects in (2+1)-dimensional gravity, the Galilean limit is not trivial.
A.A. Kirillov   +26 more
core   +3 more sources

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