Báo cáo toán học: "Baron M¨nchhausen Redeems Himself: u Bounds for a Coin-Weighing Puzzle Tanya Khovanova" ppsx

... that logarithmically-many weighings on a balance suffice. 1 Introdu ction 1.1 Background Baron M¨unchhausen is famous for telling the truth, only the truth and nothing but the truth [6]. Unfortunately, ... the right pan weigh at least as much as we claim, and in particular that the coin n weighs at least n grams. However, no coin weighs more than n grams, so actually the inequalities deduce...

Ngày tải lên: 08/08/2014, 12:23

... observations and conjectures based on a computer study of symmetric sum-free partitions. We have restricted our focus to such partitions because the search space is smaller, and the concepts of equivalence ... Fredricksen Naval Postgraduate School, Department of Mathematics, Monterey, CA 93943, USA halF@nps.navy.mil Melvin M. Sweet Institute for Defense Analyses, Center for Communicatio...

Ngày tải lên: 07/08/2014, 06:20

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Ngày tải lên: 05/08/2014, 15:20

... M be a module and A ⊆ M.ThenA  M means that A is a small submodule of M. Any submodule A of M is called coclosed in M if A/ B  M/B for any submodule B of M with B ⊆ A implies that A = B.Rad(M ... Tribak In particular any submodule, homomorphic i mage and direc t sum of COSP- modules are again COSP. Proof. (=⇒)LetM be a COSP-module and N ∈ σ[M]. Assume A ∈ σ[N]is N-cosin...

Ngày tải lên: 06/08/2014, 05:20

... of dual graded graphs [4]. Another approach is the “hypoplactic correspondence” of Krob and Thibon [5]. An analogue of Y4 is a Pieri-type rule for multiplying fundamental quasi-symmetric functions. ... that the color and number of the balls in urn U r for c is the same as the color and number of the balls in urn U r+j for c 0 . If c has an increasing label, then the urns U r+1 ,...

Ngày tải lên: 07/08/2014, 15:22

... 2011; Accepted: Jun 23, 2011; Published : Jul 15, 2011 Mathematics Subject Classification: 0 5A0 5,0 6A0 7. Abstract An occurrence of a consecutive permutation pattern p in a permutation π is a segment ... An analogous argument shows that the electronic journal of combinatorics 18 (2011), #P146 7 Acknowledgment We are very grateful to an anonymous referee for an extremely careful readi...

Ngày tải lên: 08/08/2014, 14:23

... transmittance Introduction The ultrananocrystall ine diamond [UNCD] films are outstanding material candidates for multifunctional device applications and attrac ting s trong scientific and technological interests due to ... roughness, atomic bonding nature, and detailed nanostructural characterizations. Optical transmission spectrum of the as-grown UNCD films ranging from 350 to 950 nm was...

Ngày tải lên: 20/06/2014, 20:20

... the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Strong coupling among semiconductor quantum dots induced by a metal nanoparticle Nanoscale ... Introduction Due to the advances in modern nanoscience, various nanostructures such as metal nanopartities (MNPs), semiconductor quantum dots (SQDs) and nanowires can be const...

Ngày tải lên: 20/06/2014, 20:20

... the mean of the cepstral sequence is zero, and it has a variance of one. This normalization is also called as cepstral mean and variance normalization. The CMN makes the features robust to ... Fourier transform (FT) is not suitable for the analysis of such nonstationary signal because it provides only the frequency information of signal but does not provide the information about at .....

Ngày tải lên: 20/06/2014, 20:20

... localization Gang Li 1* , Hao Zhang 1 , Xiqin Wang 1 and Xiang-Gen Xia 2 Abstract The iterative adaptive approach (IAA) can achieve accurate source localization with single snapshot, and therefore it ... efficiency and comparable accuracy of source angle and power estimation. Keywords: sparse recovery, iterative adaptive approach, source localization 1. Introduction Source localization is a...

Ngày tải lên: 20/06/2014, 20:20