Results 11 to 20 of about 13,752,706 (262)
Eigenvalues and critical groups of Adinkras
Advances in Applied Mathematics, 2023 Adinkras are signed graphs used to study supersymmetry in physics. We provide an introduction to these objects, and study the properties of their signed adjacency and signed Laplacian matrices. These matrices each have exactly two distinct eigenvalues (of equal multiplicity), making Adinkras closely related to the notions of strongly regular graphs. We
Iga, Kevin +3 more
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Antea Group Archeologie 2020/137
, 2022 In juli en september 2020 heeft Antea Group in opdracht van BNVB Projects B.V. een archeologisch onderzoek uitgevoerd voor het plangebied ‘Grutterij 7-9’ te Amstelveen, gemeente Amstelveen.
Looveren, V. van (Antea Group)
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Antea Group Archeologie 2020/135
, 2022 In juli 2020 heeft Antea Group in opdracht van Panattoni een archeologisch onderzoek uitgevoerd voor het plangebied ‘DD Panattoni’ te Moerdijk, gemeente Moerdijk. De aanleiding voor het bureauonderzoek is de door Panattoni voorgenomen ontwikkeling van de
Uffink, V. (Antea Group), Brokke, A.J.
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Journal of the Australian Mathematical Society, 1966 The concept of critical group was introduced by D. C. Cross (as reported byG. Higman in [5]): a finite group is calledcriticalif it is not contained in the variety generated by its proper factors. (Thefactorsof a groupGare the groups H/K where KH ≦G, and H/K is aproper factorofGunlessH = GandK=1).
Kovacs, L. G., Newman, M. F.
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Numerical renormalization group at criticality [PDF]
Physics Letters A, 1996 5 pages, LaTeX, 5 figures available upon ...
Nishino, T., Okunishi, K., Kikuchi, M.
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A Remark on Critical Groups [PDF]
Journal of the Australian Mathematical Society, 1969 Problem 24 of Hanna Neumann's book [3] reads: Does there exist, for a given integer n > 0, a Cross variety that is generated by its k-generator groups and contains (k+n)-generator critical groups? In such a variety, is every critical group that needs more than k generators a factor of a k-generator critical group, or at least of the free group of ...
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The Critical Group of a Line Graph [PDF]
Annals of Combinatorics, 2012 The critical group of a graph is a finite abelian group whose order is the number of spanning forests of the graph. This paper provides three basic structural results on the critical group of a line graph. The first deals with connected graphs containing no cut-edge. Here the number of independent cycles in the graph, which is known to bound the number
Berget, Andrew +4 more
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The Fucik spectrum and critical groups [PDF]
Proceedings of the American Mathematical Society, 2001 We compute critical groups of zero for variational functionals arising from semilinear elliptic boundary value problems with jumping nonlinearities when the asymptotic limits of the nonlinearity fall in certain parts of Type (II) regions between curves of the Fucik spectrum.
Perera, Kanishka, Schechter, Martin
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Abelian networks III: The critical group [PDF]
Journal of Algebraic Combinatorics, 2015 The critical group of an abelian network is a finite abelian group that governs the behavior of the network on large inputs. It generalizes the sandpile group of a graph. We show that the critical group of an irreducible abelian network acts freely and transitively on recurrent states of the network.
Benjamin Bond, Lionel Levine
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A Note on the Critical Group of a Line Graph [PDF]
The Electronic Journal of Combinatorics, 2011 This note answers a question posed by Levine. The main result shows that under certain circumstances a critical group of a directed graph is the quotient of a critical group of its directed line graph.
David Perkinson +2 more
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