Báo cáo toán học: "Rank–three matroids are Rayleigh David G Wagner" docx

... f, g ∈ E(M), a short calculation shows that ∆M{e, f} = y 2 g ∆M g {e, f} + y g ΘM{e, f |g} +∆M g {e, f} in which ∆M g {e, f} = M f eg M e fg − M efg M ef g , ∆M g {e, f} = M fg e M eg f − M g ef M efg , and ... = M fg e M eg f − M g ef M efg , and the central term for {e, f} and g in M is defined by ΘM{e, f |g} := M fg e M e fg + M eg f M f eg − M ef g M g ef − M efg...

Ngày tải lên: 07/08/2014, 08:22

... called Number gives the number of the geometry in [6]. There the geometries are given as an ordered sequence called geo – so f or 1  j  431, {G 1 , G 2 , G 3 } = {geo[j][1], geo[j][2], geo[j][3]}. 2 ... Stab G (X) = Stab G (Y ). The description of the geometries listed in Section 2 follows the following scheme. By Γ (G, {G i , G j , G k }) =M abc (t ab , t ac , t bc ) we mea...

Ngày tải lên: 08/08/2014, 01:20

... the integer lattice 2 . A unit square is a square of area one, whose center belongs to 2 and whose vertices belong to the dual lattice ( +1/2) 2 . We do not distinguish between a unit square and ... m n . Moves through the minimal polyominoes. We are interested in moving through the polyominoes by adding or removing one unit square at a time. How far is it possible to travel in this way thr...

Ngày tải lên: 07/08/2014, 06:20

... discussion. Let G be a finite group and S ⊂ G a set of generators for G. TheCayley graph X (G, S) is the graph obtained by taking the elements of G as vertices and including the edge (α, β) if α −1 β ∈ ... properties of the graph G. Focusing, as we will, on regular graphs, define the normalized adjacency matrix A (G) of the d-regular graph G so that A (G) uv =  1 d if (u, v) ∈ E, 0...

Ngày tải lên: 07/08/2014, 08:20

... Let G 1 and G 2 be two groups and G = G 1 × G 2 such that Γ( S : G) is integral, where S = S −1 ∋ 1 with three elements. Let S 1 = {s 1 | (s 1 , g 2 ) ∈ S, g 2 ∈ G 2 } \ {1}. Then Γ(S 1 : G 1 ) ... contradicts the fact that S generates G. Hence the g r aphs G 9 and G 10 are not Cayley graphs. Case7: Let |G| = 24. By Lemmas 2 .9 and 2.11, G is a non- abelian grou...

Ngày tải lên: 08/08/2014, 01:20

... and the Fc domain of human IgG1, whereas IFX and ADA are IgG1 antibodies against TNF-α, the former a chimeric mouse/human IgG1 antibody, the latter a fully human IgG1-antibody. The affinity ... thirds along the villi (arrowheads) and the crypt compartment (a short segment is highlighted within brackets). Both treatments, ETC (5 mg/kg s.c.) (E,F) and IFX (5 mg/kg i.p.) (G, H), prevented...

Ngày tải lên: 08/08/2014, 17:20

... polyphaga mimivirus was a significant breakthrough in the recent history of virology. Both mimivirus particle size (~750 nm) and its genetic repertoire (1.2 Mb-genome encoding 911 protein coding genes) ... NCLDV: Nucleocytoplasmic large DNA virus; GOS: Global Ocean Sampling Expedition; PolB: type B DNA polymerase; ORF: open reading frame. Competing interests The author(s) declare that they ha...

Ngày tải lên: 20/06/2014, 01:20

... HQ, Xiang YF, Xin BJ, Pei Y, Lu JX, Wang QL, Xia M, Qian CW, Ren Z, Wang SY, Wang YF, Xing GW (2011) Synthesis and in vitro anti-HSV-1 activity of a novel Hsp 90 inhibitor BJ-B11. Bioorg Med ... samples were measured using potassium bromide (KBr) pellets. Thin-layer chromatography was performed on Uniplates (silica gel). All chemicals were reagent grade. High-resolution mass spectral ......

Ngày tải lên: 20/06/2014, 20:20

... con- vergentforlargetimeduetothegamma function going to infinity when q passes through an integer and thus driving the integrand to zero there. Higher powers of the Laplace-domain logarithmic ... particularly 1 ln(s)+c = 1 ln(s)+ln(e c ) = 1 ln(s)+lna = 1 ln(as) = 1 ln(e c s) . Using the scaling law G( as) ⇔ 1 a g  t a  , applied to Equation 1 4 gives the transform pair 1 ln(as) ⇔ 1 a ∞...

Ngày tải lên: 20/06/2014, 21:20

...

Ngày tải lên: 05/08/2014, 10:20