Báo cáo toán học: " Linear recurrences and asymptotic behavior of exponential sums of symmetric boolean functions" pptx

... where we compute the asymptotic behavior of exponential sums of symmetric boolean functions. The correlation between two Boolean functions of n inputs is defined as the number of times the functions ... study exponential sums associated to symmetric boolean functions F . Any symmetric function is a linear combination of elementary symmetric polynomials, th...

Ngày tải lên: 08/08/2014, 14:23

... destruction of some vertices of V i (by deleting them or changing their degrees) and creation of new vertices of V i . Denote by Y + i (Op) the number of vertices of V i created, and by Y − i (Op) ... dominating set of size at most 29n/70 + O(1). Proof: As we prioritise the selection of a vertex o f degree 1 over the selection of a vertex of degree 2, we have γ = 1. Th...

Ngày tải lên: 08/08/2014, 12:23

... damping will cause the nonlinear diffusive phenomena of hyperbolic waves, while Huang and Li recently studied large-time behavior and quasineutral limit of L ∞ solution of the Cauchy problem in ... On the asymptotic behavior of solutions of semilinear wave equation. Publ. RIMS Kyoto Univ. 12, 169–189 (1976) [21] Zhao, H-J: Convergence to strong nonlinear diffusion waves for...

Ngày tải lên: 21/06/2014, 20:20

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Ngày tải lên: 05/08/2014, 10:20

... ) and T is a well-covered tree. Therefore β(T ) = n/2 and T is the corona of a tree of vertex set W . Let A be a γ ˆo (T )-set. Then A contains the set L of leaves of T and a dominating set of ... β(G) and i(G) in this class. Lemma 2 For every tree T of order n, β(T ) + 2i(T ) ≥ n + 1 and the bound is sharp. Proof Let T = (V, E) be a tree of order n ≥ 2, I a i(T )-set...

Ngày tải lên: 07/08/2014, 21:20

... theorem to cover the case of an infinite number of variables. The proof of Theorem 5 is based on Theorem 4 and a theorem of Janson [14] for the study of percolation in a random graph with given vertex degrees. ... model of global cascades on random networks. Proceedings of the National Academy of Sciences, 99(9):5766–5771, 2002. [27] N. Wormald. Differentia l equations f or ra...

Ngày tải lên: 08/08/2014, 12:22

... of Mathematics 34:4 (2006) 495–499 Short Communications Controllability Radii and Stabilizability Radii of Time-Inv ariant Linear Systems D. C. Khanh and D. D. X. Thanh Dept. of Info. Tech. and ... in the end of Sec. 3. And we also answer for the 498 D. C. Khanh and D. D. X. Thanh The stabilizability radii of system (3.1) of the feedback matrix F with the pertubation o...

Ngày tải lên: 06/08/2014, 05:20

... linear dependence of the PL peak energies over the third root of the excitation density [20]. The inset of Figure 3b shows the linear dependence of the PL peak energies and the third root of ... the height of GaSb/In 0.53 Ga 0.47 As QDs. (a) The AFM image of GaSb/In 0.53 Ga 0.47 As QDs, (b) histogram of the height of GaSb/In 0.53 Ga 0.47 As QDs, and (c) the STEM...

Ngày tải lên: 20/06/2014, 20:20

... elements of Zn, Mn, O, and adventitious C (a). The high-resolution XPS spectra of Zn (b) and Mn (c) species. Figure 4. Illustration of the formation process. Figure 5. Raman scattering (a) and ... peaks at 1,580 and 1,400 cm −1 with a wave number separation of 180 cm −1 correspond to the asymmetric stretching υ as (COO − ) and symmetric stretching υ s (COO − )...

Ngày tải lên: 20/06/2014, 20:20

... {A n } ∞ n=1 be a decreasing sequence of nonempty, closed, and bounded subsets of a Banach space X with lim n→∞ µ(A n ) = 0, where µ is the E-L measure of nonconvexity of X, and let A ∞ =  ∞ n=1 A n . Then ... nonempty and closed subset of the Banach space X. The E-L measure of nonconvexity µ of X is said to have the Cantor property in Y if for every decreasing sequence {...

Ngày tải lên: 20/06/2014, 20:20