Báo cáo toán học: "The wildcard set’s size in the density Hales-Jewett theorem" doc

... formed by adding terms with distinct indices, i. e.   i∈α x i : α ⊂ N, 0 < |α| < ∞  .) This is the content of the following theorem, the proof of which requires the following notion: ... combinatorial approach to the density Hales-Jewett theorem. Online project at http://michaelnielsen.org/polymath1/index.php?title=Polymath1; also D.H.J. Polymath, A new proof of the...

Ngày tải lên: 08/08/2014, 14:23

... natural disasters in the past 2 decades, including the earthquake in Armenia in 1988 [35], Wenchuan, China, in 2008 [36], and Haiti in 2010 [37], and the tsunami in Indonesia in 2004 [38]. FAST ... article as they were all involved in the literature search, evaluation of the literature, writing and editing process. All authors read and approved the final manusc...

Ngày tải lên: 20/06/2014, 21:20

... recent interest in SNN polynomials is motivated by problems in algebraic geome- try [4, Conj. 2.8, Conj. 5.1]. Theorem 3 Let π and σ be permutations in S n . Then π is less than or equal to σ in the Bruhat ... transpositions, then the poly- nomial (1) is equal to a sum of polynomials of the form (2) and again is TNN. (⇐) Suppose that π is not less than or equal to σ in the B...

Ngày tải lên: 07/08/2014, 08:20

... tightness. The first involves the “stratification” of an orbit relative to the action of a parabolic subgroup, and the second involves confining a face of the dominant chamber inside a face of the “double ... standard ordering relative to the root system Φ; however, these two “standard” orderings of V coincide: a point in Span Φ is in the positive span of Φ + if and only if i...

Ngày tải lên: 07/08/2014, 08:22

... main theorem. We extend the Lov´asz Local Lemma to the space of random injections by establishing a simple criterion for defining the negative dependency graph. In section 3, we apply our main theorem ... an injection from an a-element set into a 6a-element set, while the naive approach requires a Θ(a 2 ) size codomain, as it is well-known from the ‘Birthday Paradox’. Now using L...

Ngày tải lên: 07/08/2014, 15:23

... of identifying codes. Identifying codes and locating-dominating codes have been extensively studied: see the Internet bibliography [11] maintained by Antoine Lobstein. For results on the triangular grid, ... identifying and has density 2/5 . The lower bound 2/5 on the density is an immediate corollary of [12, Theorem 14]. In the hexagonal mesh the smallest possible density...

Ngày tải lên: 08/08/2014, 12:22

... anodes in the MECs, current returned to 43% of the original level within 3 cycles and was maintained in further batches. With the thinner, 30% diluted layer, current returned to 89% (±6%) of the ... days, the overlay had started to delaminate from the graphite block, so testing was discontinued. Using a 30% dilution of the latex- glycerol, the current recovery in the...

Ngày tải lên: 20/06/2014, 21:20

... and t =2 for the affine linear group over GF(n). Therefore Theorem 1 gives for these values of n and k a Katona type proof for the 2-intersecting Erd˝os-Ko-Rado theorem. This is true in particular ... study the possibility of the existence of a Katona type proof for the Erd˝os- Ko-Rado theorem for 2- and 3-intersecting families of sets. An Erd˝os-Ko-Rado type theorem for 2-intersect...

Ngày tải lên: 07/08/2014, 06:22

... for the quantitation of microgram quantities of protein utilizing the principle of protein-dye binding. Anal Biochem 72, 248–254. 40 Laemmli UK (1970) Cleavage of structural proteins during the ... two completely different binding modes for the intermediate and the product, suggesting that a specific motion is associated with the collapse of the intermediate into the product [3...

Ngày tải lên: 15/03/2014, 09:20

... and stopped breathing as the paramedics lifted him into the ambulance at 04.45 a.m. One of them started cardiopulmonary resuscitation (CPR) and continued it during the drive to the local hospital. ... an important role by coordinating the total pre- and intra-hospital resources. Be- cause of other similar actions during the last few years, the center, which is an integral part...

Ngày tải lên: 20/06/2014, 20:20