Báo cáo toán học: "On Certain Eigenspaces of Cographs" docx

... multiplicities of eigenvalues 0 and −1 of G. Observe that two vertices of G belong to the same cluster (or to the set of isolated vertices) exactly if the corresponding leaves of T have a common ... fixed vertex of M, • −1 in turn to exactly one other vertex of M, • 0 to all other vertices of G. Then the constructed vectors constitute a simply structured basis of Eig(−1; G)....

Ngày tải lên: 07/08/2014, 21:21

Ngày tải lên: 05/08/2014, 15:20

... in frames of types s i 4 , 1 ≤ i ≤ n.Weobtainaframeoftypet 4 . Lemma 3.2 Suppose t ≡ 2mod4, 6 ≤ t ≤ 46, t =14. Then there is a frame of type t 4 . On the Spectra of Certain Classes of Room Frames Jeffrey ... unordered pair of symbols of S  {∞}. 2. Every symbol of S  {∞} occurs at most once in any row or column of F ,and every unordered pair of symbols occurs in at most o...

Ngày tải lên: 07/08/2014, 06:20

... (elements of S are the “open dots”) Proof. The proof is straightforward (using, for example, the “balls in boxes” interpretation as in the proof of Proposition 3.1.) We sketch the proof that π C is ... electronic journal of combinatorics 14 (2007), #R43 18 On certain integral Schreier graphs of the symmetric group Paul E. Gunnells ∗ Department of Mathematics and Statistics Univers...

Ngày tải lên: 07/08/2014, 15:22

... 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 5.1. 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 solution...

Ngày tải lên: 20/06/2014, 20:20

... for PAPR distri- bution of OFDM/TDM signal and then, we develop the expression for the capacity of OFDM/TDM using MMSE-FDE. A. PAPR of OFDM/TDM The baseband oversampled OFDM/TDM signal given by (2) ... PAPR problem of conventional OFDM at the cost of slight decrease in spect rum efficiency. The capacity of OFDM/ TDM using MMSE-FDE is o btained based on the Gaus- sian assumption o...

Ngày tải lên: 20/06/2014, 21:20

... 2011:60 http://www.advancesindifferenceequations.com/content/2011/1/60 Page 8 of 14 comes down to zero. The greatest values of the considered functions are infinite, when k 0 = ∞. 2.7. The first derivatives of the ch1 function of HC in relation to the degree of freedom ... 2)ψ 2 (υ +1)+ψ 4 (k + n − 2)  . In general, the HC of the mth derivative of n can be defined on the basis...

Ngày tải lên: 20/06/2014, 21:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20