Báo cáo khoa học:Tight estimates for eigenvalues of regular graphs docx

... 207- 210. the electronic journal of combinatorics 11 (2004), #N9 4 Tight estimates for eigenvalues of regular graphs A. Nilli Department of Mathematics, Sackler Faculty of Exact Sciences Tel Aviv University, ... and for any infinite family of of d -regular graphs G i , lim inf λ 2 (G i ) ≥ 2 √ d − 1. This bound is sharp (at least when d − 1isa prime congruent to 1 modu...

Ngày tải lên: 07/08/2014, 08:20

... space of Erd˝os-R´enyi Random graphs with parameters n and p, where p  log 6 n n . Also, let A be the adjacency matrix of G, and v 1 be the first eigenvector of A. We provide two short proofs of the ... Then, for all i ∈ [n]     v 1 (i) − 1 √ n      c log n log np 1 √ n ∆ with high probability, for some constant c. 3 Proofs 3.1 The First Proof In this section we present...

Ngày tải lên: 08/08/2014, 01:20

... previously demonstrated the application of this method to the determination of the glycan structure of a form of AFP [10]. However, identification of the details of a glycan structural change on a ... Organization of the Ministry of Economy, Trades and Industry of the Japanese government. The work of database construc- tion is supported by the Integrated Database Project o...

Ngày tải lên: 16/02/2014, 08:20

... Phosphorylation of Ser158, which is immediately downstream of the LRR domain, could, for instance, induce a conforma- tional change of the adjacent region, which could be required for Atx1 binding. Finally, ... of PP2A- C protrudes out enough to fit well into the groove formed by the concave surface of the LRR domain. Stabilizing interactions could form between His230 of PP2A-C...

Ngày tải lên: 18/02/2014, 17:20

... cause -of (vain -of) raining schools closed were. “schools were closed because of the vain reason of raining.” 13′) bar bām-e (ziba-ye) xāne qadam bogzar. on roof -of (beautiful -of) house ... finding of this paper is applicable to Farsi parts of speech recognition at least in the area of compound prepositions. Prepositions are one sort of parts of speech, the re...

Ngày tải lên: 08/03/2014, 02:21

... 5¢-end of loop. In both loops, 6-mer oligomers hybridize to the 5¢-end of the loops and propagate to nucleotides involved in the formation of the helix. The strong preference for the 5 ¢-side of ... Interestingly, similar binding properties of Co 2+ to the N7 atom of guanine residues were previously observed in the crystal structure of the orthorombic form of yeast tRNA Phe...

Ngày tải lên: 16/03/2014, 06:20

... can the performance of Agent A and Agent B be compared? Given values for and wi, performance can be calculated for both agents 276 using the equation above. The mean performance of A is 44 ... a set of ci to yield an overall performance measure. 2.4 Estimating a Performance Function Given the definition of success and costs above and the model in Figure 1, performance...

Ngày tải lên: 17/03/2014, 23:20

... — The field work for selecting superior trees of cork oak is described. Requirements for selection are different from those employed for timber tree breeding, because ... developed in a natural forest of 16 000 ha, 8 000 of which are pure cork oak. As the trees are debarked once every 9 years, each year an area of 800-900...

Ngày tải lên: 08/08/2014, 19:21

... survival BioMed Central Page 1 of 10 (page number not for citation purposes) World Journal of Surgical Oncology Open Access Review Surgical strategies for treatment of malignant pancreatic tumors: ... cited. World Journal of Surgical Oncology 2008, 6:123 http://www.wjso.com/content/6/1/123 Page 9 of 10 (page number not for citation purposes) carcinoma of the body and tail o...

Ngày tải lên: 09/08/2014, 07:22

... Features of the first type look at words that occur between a child and its parent. These features take the form of a POS trigram: the POS of the parent, of the child, and of a word in between, for ... second type of feature provides the local con- text of the attachment, that is, the words before and after the parent-child pair. This feature took the form of a POS 4-gram: Th...

Ngày tải lên: 20/02/2014, 15:20