Báo cáo toán học: "On the sharpness of some results relating cuts and crossing numbers" pptx

... on the other hand, is far from clear, as the edges of the two bundles can possibly cross each other a rbitra rily often in a n optimal drawing of the zip product, and optimal drawings of the ... or bounding the crossing number of graphs used to be the main issue at the beginning, the focus is now shifting to structural aspects of the crossing number problem...

Ngày tải lên: 08/08/2014, 12:22

... sections are devoted to the proof of the theorem when n =2,n=3,n=4andn =5. For the last three cases we will prove that all the eigenvalues of the matrices C are real, and therefore, the systems (1.1) ... ξ 4 v 33 v 15 v 24 , (6.7) On the Hyperbolicity of some Systems of Nonlinear 111 The solvability of the Cauchy problem for the equations (1.5) strongly depen...

Ngày tải lên: 06/08/2014, 05:20

... exp(−rt 2 /2). Proof of the Lemma. The proof of this lemma is standard: G iven f as in the theorem above, let g 0 be a random function from F n p to {0, 1} (which can be thought of as a sequence of random ... not bothered to optimize the conclusion of the theorem (to the same extent as we did Theorem 1) given the method of proof, though much more can certainly be pro...

Ngày tải lên: 08/08/2014, 12:22

... R + , 0 ≤ j ≤ n and p ∈ (0, 1). The following result provides a necessary and sufficient condition for the boundedness of the solution of (4.4) and (4.5). The necessary part of the next theorem was ... 2.3). Thus, the conditions of Theorem 3.1 hold, and the initial vector x 0 belongs to S, and hence the solution x(n; x 0 ) of (1.1) and (1.2) is bounded. We...

Ngày tải lên: 20/06/2014, 20:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 10:20

Ngày tải lên: 05/08/2014, 15:20

Ngày tải lên: 05/08/2014, 15:20