Báo cáo toán học: "On the Spectra of Certain Classes of Room Frames" pdf
... 1994. Abstract In this paper we study the spectra of certain classes of Room frames. The three spectra are incomplete Room squares, uniform Room frames and Room frames of type 2 u t 1 . These problems have been ... of the weights of the points in one of the groups is t, and the sum of the weights of all the points is 2u + t. Apply Construction 2...
Ngày tải lên: 07/08/2014, 06:20
... by x p the g.c.d. of the first term of f u and the first term of f v , by x t the g.c.d. of the first term of f u and the second term of f v , by x r the g.c.d. of the second term of f u and the second ... Marcel in Theorem 2.1. We obtain also a primary decomposition of the presentation ideal of the Symmetric algebra Sym(I) in Theorem 3.1. All these resu...
Ngày tải lên: 06/08/2014, 05:20
... Thus, the the existence of a SOMA(n − 1,n) is equivalent to the existence of n − 1 MOLS of order n, and hence to the existence of a projective plane of order n.Ifnis a power of a prime then there exists ... and only if there is a g ∈ G with A g = B. In other words, the G-orbits on the set of SOMA(k, n)s are precisely the isomorphism classes of these SOMAs. Now t...
Ngày tải lên: 07/08/2014, 06:20
Báo cáo toán học: "On the Excluded Minors for Matroids of Branch-Width Three" ppsx
... and T is one of the two components of T − e. (This is well defined since, for T being the other component of T − e,thesets(T ),(T ) form a partition of (T ).) The width of the branch-decomposition ... branch-decomposition (T,τ) is the maximum of the widths of the edges of T ,andthe branch-width of M is the minimal width over all branch-decompositi...
Ngày tải lên: 07/08/2014, 06:23
Báo cáo toán học: "On the Entropy and Letter Frequencies of Ternary Square-Free Words" docx
... of the letter a.Thenumber may thus be regarded as the frequency of the letter a. We are interested in the exponential growth rate of s n,n . This leads to the question whether sequences of ... <q<∞. The function F (q) is called the free energy of the model. More can be said about the properties of the free energy by using convexity arguments. These ar...
Ngày tải lên: 07/08/2014, 08:20
Báo cáo toán học: "On the Doubly Refined Enumeration of Alternating Sign Matrices and Totally Symmetric Self-Complementary Plane Partitions Tiago Fonseca" ppsx
... proof is the main focus of the present work: Theorem. The number of ASMs of size n with the 1 of the first row in the (i + 1) st position and the 1 of last row in the (j + 1) st position is the ... number of ASMs of size n is the same as the number of TSSCPPs of size 2n: A n = A n (1) = U 0 n (1) 4 The proof 4.1 ASM counting as the partition function...
Ngày tải lên: 07/08/2014, 21:20
Báo cáo toán học: " On the first- and second-order statistics of the capacity " ppt
... statistical analysis of the capacity of N∗Nakagami-m channels. Specifically, we have studied the influence of the severity of fading and the number of hops on the PDF, CDF, LCR, and ADF of the channel capacity. ... Ψ (1) (·) is the first derivative of the Digamma function Ψ(·) [33, Equation (8.360)]. In order to derive the PDF of the capacity of N∗Nakagam...
Ngày tải lên: 20/06/2014, 20:20
Báo cáo toán học: " On the boundedness of the solutions in nonlinear discrete Volterra difference equations" pot
... α(j) = 0, 0 ≤ j ≤ n. Then the solution of (4.4) and (4.5) is bounded if and only if the condition (5.5) is satisfied. Proof. The proof is immediate consequence from proof of Theorem 4.3 with Remark ... condition for the boundedness of all solutions of (1.1) and the scalar case of (1.1), respectively. The next result provides a sufficient condition for the boundedness of...
Ngày tải lên: 20/06/2014, 20:20
Báo cáo toán học: "On the distance to the set of compact perturbations of nilpotent operators " ppt
Ngày tải lên: 05/08/2014, 09:46
Báo cáo toán học: "On the spectral picture of an operator " ppsx
Ngày tải lên: 05/08/2014, 09:46