Nilpotent adjacency matrices, random graphs and quantum random variables
Identifieur interne : 000315 ( PascalFrancis/Corpus ); précédent : 000314; suivant : 000316Nilpotent adjacency matrices, random graphs and quantum random variables
Auteurs : René Schott ; George Stacey StaplesSource :
- Journal of physics. A, Mathematical and theoretical : (Print) [ 1751-8113 ] ; 2008.
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- Pascal (Inist)
English descriptors
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Abstract
While a number of researchers have previously investigated the relationship between graph theory and quantum probability, the current work explores a new perspective. The approach of this paper is to begin with an arbitrary graph having no previously established relationship to quantum probability and to use that graph to construct a quantum probability space in which moments of quantum random variables reveal information about the graph's structure. Given an arbitrary finite graph and arbitrary odd integer m≥ 3, fermion annihilation operators are used to construct a family of quantum random variables whose mth moments correspond to the graph's m-cycles. The approach is then generalized to recover a graph's m-cycles for any integer m≥ 3 by defining nilpotent adjacency operators in terms of null-square generators of an infinite-dimensional Abelian algebra. It is shown that ordering the vertices of a simple graph induces a canonical decompositionΨ =Ψ+ + Ψ- on any nilpotent adjacency operator Ψ. The work concludes with applications to Markov chains and random graphs.
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NO : | PASCAL 08-0216287 INIST |
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ET : | Nilpotent adjacency matrices, random graphs and quantum random variables |
AU : | SCHOTT (René); STACEY STAPLES (George) |
AF : | IECN and LORIA Université Henri Poincaré-Nancy I, BP 239/54506 Vandoeuvre-lès-Nancy/France (1 aut.); Department of Mathematics and Statistics, Southern Illinois University Edwardsville/Edwardsville, IL 62026-1653/Etats-Unis (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Journal of physics. A, Mathematical and theoretical : (Print); ISSN 1751-8113; Royaume-Uni; Da. 2008; Vol. 41; No. 15; 155205.1-155205.16; Bibl. 20 ref. |
LA : | Anglais |
EA : | While a number of researchers have previously investigated the relationship between graph theory and quantum probability, the current work explores a new perspective. The approach of this paper is to begin with an arbitrary graph having no previously established relationship to quantum probability and to use that graph to construct a quantum probability space in which moments of quantum random variables reveal information about the graph's structure. Given an arbitrary finite graph and arbitrary odd integer m≥ 3, fermion annihilation operators are used to construct a family of quantum random variables whose mth moments correspond to the graph's m-cycles. The approach is then generalized to recover a graph's m-cycles for any integer m≥ 3 by defining nilpotent adjacency operators in terms of null-square generators of an infinite-dimensional Abelian algebra. It is shown that ordering the vertices of a simple graph induces a canonical decompositionΨ =Ψ+ + Ψ- on any nilpotent adjacency operator Ψ. The work concludes with applications to Markov chains and random graphs. |
CC : | 001B00 |
FD : | Matrice aléatoire; Graphe aléatoire; Graphe quantique; Variable aléatoire; Théorie quantique; Probabilité; Graphe fini; Fermion; Opérateur annihilation; Dimension infinie; Vertex; Chaîne Markov |
ED : | Random matrix; Random graph; Quantum graph; Random variable; Quantum theory; Probability; Finite graph; Fermions; Annihilation operators; Infinite dimension; Vertex; Markov chain |
SD : | Matriz aleatoria; Grafo aleatorio; Grafo cuántico; Variable aléatoria; Grafo finito; Dimensión infinita; Vértice; Cadena Markov |
LO : | INIST-577C.354000172636590090 |
ID : | 08-0216287 |
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Pascal:08-0216287Le document en format XML
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<front><div type="abstract" xml:lang="en">While a number of researchers have previously investigated the relationship between graph theory and quantum probability, the current work explores a new perspective. The approach of this paper is to begin with an arbitrary graph having no previously established relationship to quantum probability and to use that graph to construct a quantum probability space in which moments of quantum random variables reveal information about the graph's structure. Given an arbitrary finite graph and arbitrary odd integer m≥ 3, fermion annihilation operators are used to construct a family of quantum random variables whose mth moments correspond to the graph's m-cycles. The approach is then generalized to recover a graph's m-cycles for any integer m≥ 3 by defining nilpotent adjacency operators in terms of null-square generators of an infinite-dimensional Abelian algebra. It is shown that ordering the vertices of a simple graph induces a canonical decompositionΨ =Ψ<sup>+</sup>
+ Ψ<sup>-</sup>
on any nilpotent adjacency operator Ψ. The work concludes with applications to Markov chains and random graphs.</div>
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<ET>Nilpotent adjacency matrices, random graphs and quantum random variables</ET>
<AU>SCHOTT (René); STACEY STAPLES (George)</AU>
<AF>IECN and LORIA Université Henri Poincaré-Nancy I, BP 239/54506 Vandoeuvre-lès-Nancy/France (1 aut.); Department of Mathematics and Statistics, Southern Illinois University Edwardsville/Edwardsville, IL 62026-1653/Etats-Unis (2 aut.)</AF>
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<EA>While a number of researchers have previously investigated the relationship between graph theory and quantum probability, the current work explores a new perspective. The approach of this paper is to begin with an arbitrary graph having no previously established relationship to quantum probability and to use that graph to construct a quantum probability space in which moments of quantum random variables reveal information about the graph's structure. Given an arbitrary finite graph and arbitrary odd integer m≥ 3, fermion annihilation operators are used to construct a family of quantum random variables whose mth moments correspond to the graph's m-cycles. The approach is then generalized to recover a graph's m-cycles for any integer m≥ 3 by defining nilpotent adjacency operators in terms of null-square generators of an infinite-dimensional Abelian algebra. It is shown that ordering the vertices of a simple graph induces a canonical decompositionΨ =Ψ<sup>+</sup>
+ Ψ<sup>-</sup>
on any nilpotent adjacency operator Ψ. The work concludes with applications to Markov chains and random graphs.</EA>
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