نتایج جستجو برای: toroidal graph
تعداد نتایج: 201424 فیلتر نتایج به سال:
The main result we obtain is that given t N M a TS-subbundle of the generalized Hopf fibration t H2+’cP over a Cauchy-Riemann product M _ cP, i.e. N _ H is a diffeomorphism on fibres and oj= ot, if s is even and N is a closed submanifold tangent to the structure vectors of the canonical 5Zstructure on H then N is a Cauchy-Riemann submanifold whose Chen class is non-vanishing.
Since in living cells DNA is often packaged tightly, for instance, inside phage capsids, DNA condensation has drawn much attention [1, 2, 3, 4, 5, 6] as well as its biochemical/medical importance in the emerging field of gene therapy. In fact, when we put condensing agents as multivalent cations into DNA solution, it can cause DNA to undergo the condensation from a worm-like chain (whip) to tor...
We study degenerations of Kummer surfaces associated to certain divisors in Nieto’s quintic threefold and show how they arise from boundary components of a suitable toroidal compactification of the corresponding Siegel modular threefold. The aim of this paper is to study the degenerations of an interesting class of Kummer surfaces in P in terms of degenerations of the corresponding abelian surf...
We discuss the predictions of S-duality for the monopole spectrum of four-dimensional heterotic string theory resulting from toroidal compactification. We discuss in detail the spectrum of “H-monopoles” , states that are magnetically charged with respect to the U(1) groups arising from the dimensional reduction of the ten dimensional antisymmetric tensor field. Using an assumption concerning th...
The gossip problem involves communicating a unique item from each node in a graph to every other node. We study the minimum time required to do this under the weakest model of parallel communication which allows each node to participate in just one communication at a time as either sender or receiver. We study a number of topologies including the complete graph, grids, hypercubes and rings. Dee...
We determine upper bounds for γ(Qn) and i(Qn), the domination and independent domination numbers, respectively, of the graph Qn obtained from the moves of queens on the n× n chessboard drawn on the torus.
We consider a new probabilistic graph searching game played on graphs, inspired by the familiar game of Cops and Robbers. In Zombies and Survivors, a set of zombies attempts to eat a lone survivor loose on a given graph. The zombies randomly choose their initial location, and during the course of the game, move directly toward the survivor. At each round, they move to the neighbouring vertex th...
We analyze four-dimensional, supersymmetric intersecting D-brane models in a toroidal orientifold background from a statistical perspective. The distribution and correlation of observables, like gauge groups and couplings, are discussed. We focus on models with a Standard Model-like gauge sector, derive frequency distributions for their occurrence and analyze the properties of the hidden sector.
We determine and completely describe all pure realizations of the finite regular toroidal polyhedra of types {3, 6} and {6, 3} .
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