Báo cáo toán học: "5-sparse Steiner Triple Systems of Order n Exist for Almost All Admissible n" pps

... not in B r in A and g in C implies s not in A r in B and g in A implies s not in B r in B and g in B implies s not in A r in B and g in C implies s not in C r in C and g in A implies s not in ... d m−k }. We concentrate on triples with one point in the first group and one point in the second (and the location of the third point unknown as yet). A pair with one endpoint in a class in the first...

Ngày tải lên: 07/08/2014, 06:20

... Section 3 describes meager systems of order mn + 2 for many values of m and n. • Section 4 introduces super-disjoint Steiner triple systems and provides an example of such systems of order 3n under ... Classification: 05B07 Abstract Steiner triple systems are known to exist for orders n ≡ 1, 3mod6,thead- missible orders. There are many known constructions...

Ngày tải lên: 07/08/2014, 13:21

... q-ary code of length n and covering radius R. Moreover the author presents a new bound for A (n, 3) giving for instance A(19, 3) ≤ 26168. 1 Introduction In the whole paper let q denote an integer ... an upper bound for A (n, d), which refines the classical bound of Delsarte and is computed via semidefinite program- ming. Even more recently, a new SDP bound for the nonbinary case w...

Ngày tải lên: 07/08/2014, 15:23

... method. Stark a nd Terras [9] gave an elementary proof of this formula, and discussed three different zeta functions of any gr aph. Various proofs of Bass’ Theorem were given by Kotani and Sunada [7], and ... between the first identity (1) and the second identity (2) be proved by an analogue of Bass’ method ? In Section 2, we present a new determinant expression for the Ihara-Selberg...

Ngày tải lên: 08/08/2014, 01:20

... Denniston, Non-isomorphic reverse Steiner triple systems of order 19, Ann. Discrete Math. 7 (1980), 255–264. [11] J. Doyen, X. Hubaut and M. Vandensavel, Ra nks of incidence matrices of Steiner triple ... 3-colouring. There exists no 3-balanced STS(19). In a separate computation we obtained the frequency of occurrence of each combination of 3-colouring pa tt erns. We a...

Ngày tải lên: 08/08/2014, 12:22

... be convenient to condition on the values γ x (c), η x (c) for all c ∈ C and all x /∈ N( u) and for x = u. This conditioning is needed to obtain independence. We let C denote these conditional values. Note ... 4θ 2 ˆp 2 ). 11.4.1 Concentration We first deal with D 1,1 . For this we condition on the values γ w (c), η w (c) for all c ∈ C and all w /∈ N( u) and for w = u. Then...

Ngày tải lên: 07/08/2014, 21:20

... Incremental and unifying modelling formalism for biological interaction networks. BMC Bioinf 8(1):433 Young J, Henne K, Morgan J, Konopka A, Ramkrishna D (2008) Integrating cybernetic modeling ... expression of genes and, consequently, all cellular functions. Although all of the cell functionality is encoded in the genome through thousands of genes, it is essential for the survi...

Ngày tải lên: 20/06/2014, 21:20

Ngày tải lên: 05/08/2014, 15:20

Ngày tải lên: 05/08/2014, 15:21

... discrete-time systems, Numerical Functional Analysis and Optimization, 16 (1995) 1067–1085. 19. N. K. Son and Ph.H.A. Ngoc, Stability of linear infinite-dimensional systems un- der affine and fractional perturbations, ... optimal solutions. 162 Nguyen Khoa Son and Nguyen Dinh Huy where D ∈ R n l and E ∈ R q n are given matrices defining the structure of the perturbations and Δ ∈ R l×q...

Ngày tải lên: 06/08/2014, 05:20