Báo cáo toán học: "The disjoint m-flower intersection problem for latin squares" pdf

... feature of the type-I band transition. Therefore, the interband transition of the GaSb QD would be the only proper origin of the high-energy peak. In the growth process of the sample, the InGaAs ... light emission intensity of the GaSb QD could be stronger than the type II transition due to the stronger spatial confinement of carriers in the QD and the...

Ngày tải lên: 20/06/2014, 20:20

... (2) image fusion using the mixed IMFs of panchromatic and MS images; and (3) quality assessment of the fused image. The test data include SPOT images of a forest area and QuickBird images of a ... C is the coefficient of correlation, F(i, j)andM (i, j)arethegrayvalueofthefusedandMSimages, respectively. μ F is the mean of fused image, μ M is the mean of...

Ngày tải lên: 20/06/2014, 20:20

... (latha.stead@gmail.com) Sailaja Enduri (sailaja.enduri@ht.msu.edu) M. Fernanda Bellolio (bellolio.fernanda@mayo.edu) Anunaya R Jain (anunaya_jain@urmc.rochester.edu) Lekshmi Vaidyanathan (vaidyanathan.lekshmi@mayo.edu) Rachel ... Demographics and characteristics of the cohort are summarized in Table 1. With 58.7% males, the cohort had a mean age of 74 years (SD = 15.0). A s...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 20/06/2014, 21:20

... because the content design of the textbooks of the Chinese language is principally based on the HKCEE grading criteria. Virtually, some Hong Kong people hold the point that training in the use of ... the development of Cantonese teaching will not go in the opposite direction. The Position of Cantonese in the Current Education Policy Cantonese ha...

Ngày tải lên: 20/06/2014, 21:20

... section, we provide the assumptions of the IEEE 802.16 m mobile broadband system used in the simulations for evaluating the performance of MU- MIMO. The main OFDMA and frame parameters of IEEE 802.16 ... the simu- lation of DL transmission a re generated for all OFDMA symbolsintheDLportionoftheframeinthecaseof TDD operation or in the DL frame in the cas...

Ngày tải lên: 21/06/2014, 01:20

... we let the effective SOF be the variance of the ef- fective SLF, or in other words, we let the effective SOF be the observability of the effective sensor. We first evaluate the vari- ance of the effective ... of the source (i.e., the location of the source was known) in order to estimate the relationship between the ob- servability of the sensor and the x-...

Ngày tải lên: 23/06/2014, 01:20

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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

... that abelian planar difference sets of order n exist only for n a prime power. Evans and Mann [2] verified this for cyclic difference sets for n ≤ 1600. In this paper we verify the PPC for n ≤ 2,000,000, using ... difference sets: those with G abelian and λ =1. The Prime Power Conjecture (PPC) states that abelian planar difference sets of order n exist only for n a...

Ngày tải lên: 07/08/2014, 06:20

... − 1 k − 1  m k = m(m + 1) n−1 m-colored compositions of n (so if m = 1, we have 2 n−1 ordinary compositions). Let Comp (m) (n) denote the set of all m-colored compositions of n, and define C (m) :=  n≥0 Comp (m) (n), where ... number f (m) n (α) of m-colored permutations w with colored descent composition α. Corollary 2.3. The total number of saturated chains from ∅ to rank n is equa...

Ngày tải lên: 07/08/2014, 15:22

... Z´emor [36], on the other hand, proved the above result allowing |A| to be as large as po ssible, at the expense of requiring ǫ ′ to be small. 5 Proof of the main theorem (Theore m 1.6) By Theorem ... Hamidoune’s theorem and Karolyi’s theorem as corollaries, and thus, our main result provides purely combinatorial proofs for the Erd˝os-Heilbronn conjecture and an inverse Erd˝os-Hei...

Ngày tải lên: 08/08/2014, 01:20

... of th e intersection problem for disjoint m-flowers in latin squares; that is, we determine precisely for which triples (n, m, x) there exists a pair of latin squares of order n whose intersection ... pair of latin squares of order 2m+1 whose intersection is precisely three disjoint m-flowe rs. Proof. In order for a latin square of order 2m + 1 to contain three disjoi...

Ngày tải lên: 08/08/2014, 12:23

... 1347. The following definition is borrowed from the theory of codes. Definition 1.3 Given a permutation τ, its prefix (resp. suffix) pattern of length k is the permutation of length k order isomorph ... this hypothesis, and we will give a series of partial conditions that facilitate the computation of the Măobius function in several cases. Denote with x the sum of the...

Ngày tải lên: 08/08/2014, 14:23