Báo cáo toán học: "A classification of Ramanujan unitary Cayley graphs" pot

... eigenvalues of X n using properties of the graph instead of relying on their expression as Ramanujan sums. Another point of interest arises in noting that unitary Cayley graphs are examples of connected ... The energy of unitary Cayley graphs. Linear Algebra and its Applications, In Press. Klotz, W. and Sander, T. (2007). Some properties of unitary Cayley graphs. T...

Ngày tải lên: 08/08/2014, 11:20

... case for examining the potential of automatic classification. We report an experiment where a classifica- tion is induced for 192 relatively frequent verbs from a corpus of 2230 biomedical journal ... work has been con- ducted on semantic classification of biomedical terms and nouns, less work has been done on the (manual or automatic) semantic classification of verbs in the biomedi...

Ngày tải lên: 31/03/2014, 01:20

... 97e:05058. Connects a problem on common covectors of two subspaces of R m ,andmore generally of a pair of oriented matroids, to the problem of sign-solvability of a matrix and the even-cycle problem for ... generating series for multiples of Whit- ney numbers of the second kind, analogous to usual treatments of Stirling numbers. (gg: M: N) 1999a Log-concavity of Whitney nu...

Ngày tải lên: 07/08/2014, 05:23

... Kirkland [2] give a proof by considering a matrix of order n(n +1) the determinant of which gives a n . Their proof is reduced to the computation of the determinant of a Hankel matrix of order n that ... journal of combinatorics 12 (2005), #R18 1 Proposition 2.2 There is a bijection between the set of domino tilings of the Aztec di- amond of order n and the set of n-tuples...

Ngày tải lên: 07/08/2014, 08:22

... of receptors ⁄ channels, cytoskeletal and Table 1. Scaffold proteins and their kin. Representatives of the four categories of scaffold proteins and their relatives are presented. The length of ... (13.5) Functional classification of scaffold proteins L. Buday and P. Tompa 4350 FEBS Journal 277 (2010) 4348–4355 ª 2010 The Authors Journal compilation ª 2010 FEBS MINIREVIEW Functional...

Ngày tải lên: 06/03/2014, 22:21

... Linguistics Collective Classification of Congressional Floor-Debate Transcripts Clinton Burfoot, Steven Bird and Timothy Baldwin Department of Computer Science and Software Engineering University of Melbourne, ... Introduction Supervised document classification is a well-studied task. Research has been performed across many document types with a variety of classification tasks. Exa...

Ngày tải lên: 23/03/2014, 16:20

... is the Hessian matrix of second partial derivatives of ψ evaluated at the fixed point (assumed to be x = 0). c(x) is half the absolute magnitude of the curvature of the potential function on the ... stable fixed point surrounded by a potential barrier and ask for the escape time over the barrier. ˆ ψ is the height of the potential barrier from the bottom of the well (at its lowest p...

Ngày tải lên: 20/06/2014, 20:20

... 12 of 12 - the set of the hexagons contained in the region asso- ciated to C; - the set of hexagons located at the boundary of t he component. In addition for each component a mean color of the region ... as elementary piece of information is that the amount of memory space associated to the graph vertices is reduced. Denoting by n p thenumberofpixelsofthe initial image, the num...

Ngày tải lên: 20/06/2014, 21:20

Ngày tải lên: 05/08/2014, 09:46

Ngày tải lên: 05/08/2014, 15:20