نتایج جستجو برای: commuting graph
تعداد نتایج: 203969 فیلتر نتایج به سال:
In this paper we determine the class of quantum states whose density matrix representation can be derived from graph Laplacian matrices associated with a weighted directed graph and we call them graph Laplacian quantum states. Then we obtain structural properties of these graphs such that the corresponding graph Laplacian states have zero quantum discord by investigating structural properties o...
In this paper we investigate some properties of the power graph and commuting associated with a finite group, using their tree-numbers. Among other things, it is shown that simple group L2(7) can be characterized through tree-number its graph. Moreover, classification groups power-free decomposition presented. Finally, obtain an explicit formula concerning graphs Suzuki groups.
If G is a finite group and Z(G) the centre of G, then commuting graph for denoted by ΓG, has G\Z(G) as its vertices set with two distinct vp vq are adjacent if = vp. The degree vertex
The commuting graph of a group G, denoted by Γ(G), is a simple graph whose vertices are all non-central elements of G and two distinct vertices x, y are adjacent if xy = yx. In [1] it is conjectured that if M is a simple group and G is a group satisfying Γ(G) ∼= Γ(M), then G ∼= M . In this paper we prove this conjecture for many simple groups.
The commutation relations between the generalized Pauli operators of N -qudits (i. e., N p-level quantum systems), and the structure of their maximal sets of commuting bases, follow a nice graph theoretical/geometrical pattern. One may identify vertices/points with the operators so that edges/lines join commuting pairs of them to form the so-called Pauli graph PpN . As per two-qubits (p = 2, N ...
We used participant-produced photography to investigate everyday commuting practices in Cambridge, UK. Photovoice served as an observational method for producing ethnographically rich data. A total of 19 participants produced over 500 photos about their journeys to and from work and took part in photo-elicitation interviews. Three themes emerged. First, many images depicted 'well-being' in comm...
At city level, personal monitoring is the best way to assess people's exposure. However, it is usually estimated from a few monitoring stations. Our aim was to determine the exposure to black carbon (BC) and BC dose for 45 schoolchildren with portable microaethalometers and to evaluate the relationship between personal monitoring and fixed stations at schools (indoor and outdoor) and in an urba...
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