Báo cáo toán học: "Dilatations isometriques d''''''''operateurs et le probleme des sous-espaces invariants " potx

... article as: Al-Mezel: Common fixed points and best approximations in locally convex spaces. Fixed Point Theory and Applications 2011 2011:99. Submit your manuscript to a journal and benefi t from: 7 ... a locally convex space. In this section, we show that the problem concerning the existence of common fixed points of R-subcommuting maps on sets not necessa...

Ngày tải lên: 20/06/2014, 21:20

... CAS E REP O R T Open Access Visual diagnosis: Rectal foreign body: A primer for emergency physicians Bobby Desai Abstract We present a case that is occasionally seen within emergency departments, ... removal of the object for clinicians. Case A 39-year-old male presented to the Emergency Depart- ment with vague complaints of abdominal pain and con- stipation. He st...

Ngày tải lên: 20/06/2014, 21:20

... Access Including emergency and acute care as a global health priority Nicholas Risko 1* , Emilie JB Calvello 2 , Sarah Stewart de Ramirez 3 , Mayur Narayan 4 and Jon Mark Hirshon 5 Abstract A ... care was once again crowded off the agenda. The recently released UN Report of the Secretary- General on the preventio n and control of NCDs [1] aggressively attacked acute...

Ngày tải lên: 20/06/2014, 21:20

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Ngày tải lên: 05/08/2014, 10:20

... C  |α|=m ||D α A|| BMO ||f|| L n/δ . Combining these estimates, we complete the proof of Theorem 1.  Vietnam Journal of Mathematics 33:2 (2005) 123–134 Boundedness of Multilinear Littlewood-Paley Operators for the Extreme Cases * Liu ... y)| 2 dydt t n+1  1/2 , where ∗ This work was supported by the NNSF (Grant: 10271071). Boundedness of Multilinear Littlewood-...

Ngày tải lên: 06/08/2014, 05:20

... ∅. Thus, the set P S defined as in (16) with α = P is nonempty and compact. To complete the proof of the theorem, it remains to apply Theorem 1.  Existence of Solutions to Generalized Bilevel Vector ... Institute of Mathematics of the Humboldt University in Berlin and the Institute of Mathematics of the Cologne University. Existence of Solutions...

Ngày tải lên: 06/08/2014, 05:20

... is (k, )-sum-free for k,  ∈ N, k>,ifthere are no solutions to the equation x 1 + ···+ x k = y 1 + ···+ y  in A. Denote by SF n k, the number of (k, )-sum-free subsets of [1,n]. Since the ... ρ). The main result of this note says that if (k − )/ is small in terms of ρ, then the number of (k, )-sum-free subsets of [1,n]isequalto(ϕ(ρ)+ϕ r...

Ngày tải lên: 07/08/2014, 06:20

... and the second follows from (2) and the bounds for R 5 (3) given in S. Radziszowski’s survey paper [6]. For earlier work on lower bounds for S(k) see H. Fredricksen [5] and A. Beutelspacher and W. ... D k (n)tobethemaximumofD(P )overall symmetric sum-free partitions P of [1,n]intok sets. Notethatwemusthave D k (n) ≤ S(k − 1) + 1. Symmetric Sum-Free Partitions...

Ngày tải lên: 07/08/2014, 06:20

... a construction for sets of integers with distinct subset sums Tom Bohman Department of Mathematics, 2-339 Massachusetts Institute of Technology 77 Massachusetts Ave. Cambridge, MA 02139 bohman@math.mit.edu Submitted: ... can make an approximation of L ≈ .22001865 with an error of less than 1.5 ·10 −7 . Inequality (10) can certainly be used to obtain more precise ap...

Ngày tải lên: 07/08/2014, 06:22

... symbolic, i.e. arbitrary, k, thereby fulfilling the hope raised in [Z98]. A Multiple Integral Evaluation Inspired by the Multi-WZ Method ∗ Akalu Tefera Department of Mathematics Temple University, ... is guaranteed by the fundamental theorem of the (continuous version of the) multi-WZ theory [WZ92]. Doron Zeilberger wrote a Maple implementation, TRIPLE INTEGRAL 2 ,t...

Ngày tải lên: 07/08/2014, 06:22

... completes our proof since the manipulations at the beginning of the section prove that the two quotients in (5.42) have the same Hilbert series. References [1] Yu. Berest, P. Etingof and V. Ginzburg, ... QI m (D n ) of m-quasi-invariants of D n . More precisely we have the electr onic jou rnal of combinatorics 12 (2005), #R20 8 Proof Because of uniqueness of the e...

Ngày tải lên: 07/08/2014, 08:22

... contain at least one tip. The Edmonds-Gallai structure theorem can be formulated for the k-piece packing problem as follows. The classical Edmonds-Gallai theorem first defines the vertex set D to consist ... characterization for graphs having a perfect k-piece packing and a min-max result for the size of a maximum k-piece packing are derived. Neither the Edmon...

Ngày tải lên: 07/08/2014, 08:22

... contains a subgraph on k − 1 vertices not in In(H) and by Proposition 2, there is a k-coloring of G avoiding rainbow induced copies of H. Therefore, if any k-coloring of G contains a rainbow induced ... x 10 .Butthen {x 10 ,x 1 ,x 2 ,x 5 } induces a rainbow Λ, a contradiction. Claim 3. Any coloring of G(3) in 4 colors contains an induced rainbow Λ. Let c be a coloring of...

Ngày tải lên: 07/08/2014, 13:21

... are based on the fact that F (r) n (q, t)andL (r) n (q, t) are, respec- tively, bivariate generating functions for a pair of statistics on linear and circular r-mino arrangements. 2Linearr-Mino ... Classifications: 11B39, 05A15 Abstract We introduce a new statistic on linear and circular r-mino arrangements which leads to interesting polynomial generalizations of the...

Ngày tải lên: 07/08/2014, 13:21