Báo cáo toán học: " Identifying X-Trees with Few Characters" pps

... performance We collaborated with K [36], a promising musician, to prove the capabilities of the robot arm when used as a compliant tangible music interface. Together with the artist, we created a ... move towards a virtual attractor in 3D Cartesian space as if its dynamics was equivalent to a virtual mass concentrated in its end-effector and attached by a virtual sp...

Ngày tải lên: 20/06/2014, 20:20

... as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Random approximation with weak contraction random operators and a random fixed point ... the fixed points of random maps. Choudhury [8], Park [9], Schu [10], and Choud- 2 Random approximation with weak contrac- tion random operators and a...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 09:46

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Ngày tải lên: 05/08/2014, 10:20

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Ngày tải lên: 05/08/2014, 10:20

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Ngày tải lên: 05/08/2014, 15:20

... Wales, On the decomposition of Brauer’s centralizer algebras, J. Algebra 121 (1989), 409-445. [HW2] P. Hanlon and D. Wales, Eigenvalues connected with Brauer’s centralizer Algebras, J. Algebra ... JeudeTaquinpreservesstandardness 25 3.3 DualKnuthequivalencewithJdTfortableaux 31 3.4 ThenormalshapeobtainedviaJdT 35 3.5 Analternatestatementofthemaintheorem 38 1Introduction Brauer’s...

Ngày tải lên: 07/08/2014, 06:20

... proves the lemma. We now need to establish a similar result to the one stated in the previous lemma inthecasewhereA ∗ is obtained from A by replacing sets of A by sets in their new- shade. The proofs ... The proofs of the following lemmas are similar to the proof of Lemma 4 and we shall try to keep them as short as possible. We need to discuss the cases n odd and n e...

Ngày tải lên: 07/08/2014, 06:20

... dual graph is adjacent to a dual vertex with weight k − 1 and a dual vertex with weight k +1. Monotone diagrams are a natural and interesting class of Venn diagrams. The general constructions of ... A.W.F. Edwards, “Seven-set Venn diagrams with rotational and polar symmetry,” Combinatorics, Probability, and Computing, 7 (1998) 149-152. [5] A.W.F. Edwards, “Venn diagrams for many...

Ngày tải lên: 07/08/2014, 06:22

... set-systems with restricted intersection-sizes. The famous Ray- Chaudhuri–Wilson [RCW75] and Frankl–Wilson [FW81] theorems give strong upper bounds for the size of set-systems with restricted ... pages 223–233, 1976. the electronic journal of combinatorics 9 (2002), #R8 10 Set-Systems with Restricted Multiple Intersections Vince Grolmusz Department of Computer Science Eăotvăos...

Ngày tải lên: 07/08/2014, 06:23

... electronic journal of combinatorics 9 (2002), #R11 14 Identifying codes with small radius in some in nite regular graphs Ir`ene Charon, Olivier Hudry and Antoine Lobstein Centre National de la ... points within distance r from v,thenwecallS an r -identifying code. We give constructive upper bounds on the best possible density of r -identifying codes in four in nite r...

Ngày tải lên: 07/08/2014, 06:23

... 6), such that every four points span 0 or 2 edges, has at most 10(m/6) 3 edges (their result is quite a bit stronger, but this version suffices for our purposes). We will use this on subhypergraphs of ... proving that a positive proportion of quadruples contribute to q 1 . By (1) this immediately lowers the bound of 1/3. Our primary tool is a result of Frankl and Făuredi [4] stating t...

Ngày tải lên: 07/08/2014, 07:21

... considered a set of partitions λ = (λ 1 ,λ 2 , ), λ 1 ≥ λ 2 ≥ , of an integer n with a fixed sum of even parts (i.e. λ 2 + λ 4 + ··· = m). They, in particular, proved that the number of such partitions ... of partitions (, à) such that ||+|à| = m. Their proof is based on construction of a bijection between the set of partitions of n with the sum of even parts being equal to m a...

Ngày tải lên: 07/08/2014, 08:22

... 2 ì2 standard subsquares containing s in E , while the other 2m −2canbe used in any of the other 2 × 2 standard subsquares. If we again label the 2 × 2 standard subsquares with Y 1 , ,Y m in ... arrays with multiple entries in each cell. They proved a result regarding arrays with at most two entries in each cell, and we generalize their method to obtain a similar result for arrays wit...

Ngày tải lên: 07/08/2014, 13:21

... ordered pair consisting of a tree T , with vertex set V say, and a map φ : X → V with the property that, for all v ∈ V with degree at most two, v ∈ φ(X). X-trees are commonly referred to as semi-labelled ... Identifying X -Trees with Few Characters Magnus Bordewich 1 , Charles Semple 2 and Mike Steel 2∗ 1 Department ... clear that the single character in C T identifies T . Now su...

Ngày tải lên: 07/08/2014, 13:21