Báo cáo toán học: "Antichains on Three Levels Paulette Lieby" doc
Báo cáo toán học: " Remarks on uniform attractors for the 3D nonautonomous Navier-Stokes-Voight equations" pptx
... H
2
, Yue and Zhong [11] investi-
gated the attractors for autonomous and nonautonomous 3D Navier-Stokes-Voight
equations in different methods. More details about the infinite-dimensional dynamics
systems, ... RESEARC H Open Access
Remarks on uniform attractors for the 3D non-
autonomous Navier-Stokes-Voight equations
Yiwen Dou
1,2
, Xinguang Yang
3*
and Yuming Q...
Báo cáo toán học: "Bounds on the number of bound states for the Schroedinger equation in one and two dimensions " docx
... class="bi x0 y0 w1 h 1" alt =""
Báo cáo toán học: "Remarks on Lebesgue-type decomposition of positive operators " docx
... class="bi x0 y0 w2 h 1" alt =""
Báo cáo toán học: "Derivations on certain CSL algebras " docx
... class="bi x0 y1 w1 h 4" alt =""
Báo cáo toán học: "An On-Line Version of the Encyclopedia of Integer Sequences" doc
... years after the publication of A Handbook of Integer Sequences, a greatly
expanded version of this collection can now be accessed by electronic mail.
1. The on-line version
A Handbook of Integer ... if the sequence is not in the table), and furthermore will apply a series of transfor-
mations to a given sequence and then look up the transformed sequences in the...
Báo cáo toán học: "Note on Gy. Elekes’s conjectures concerning unavoidable patterns in proper colorings" pptx
... Szemer´edi, On sets of integers containing no k elements in arithmetic pro-
gression, Acta Arithmetika 27, 199–245.
Note on Gy. Elekes’s conjectures concerning
unavoidable patterns in proper colorings
Vera ... Classification numbers: 05C15, 05C55, 05C38
Abstract
A counterexample is presented to Gy. Elekes’s conjecture concerning the
existence of long 2-colored path...
Báo cáo toán học: "Queens on Non-square Tori" pptx
... for
m<n, one can obviously place at most m nonattacking queens and for 4 m<n,one
can just take a solution on the m ì m board and extend the board. Moreover, the reader
will easily nd solutions on ... reader will readily find
that there is no solution on the 6 ì 3 board, but there are solutions on the 9 ì 3 board.
It follows that there are solutions on the n ì m board for all m&...
Báo cáo toán học: "Operations on Well-Covered Graphs and the Roller-Coaster Conjecture" docx
... operations that preserve well-coveredness under certain conditions may be found in [8], in-
cluding the corona, the conjunction, the disjunction, and the Cartesian product of graphs.
The case of the ... well-coveredness preserving operations.
2.1 Disjoint Union and the Join
Let G
1
and G
2
be well-covered graphs. Then the disjoint union G
1
G
2
is also well-
covere...
Báo cáo toán học: "Antichains on Three Levels Paulette Lieby" doc
... if
it has at most two levels, and those levels are consecutive.
A partition of B is a collection of pairwise disjoint sub-collections of B whose union is B.
That is, the collection π
1
= {B
1
, B
2
, ... A
the electronic journal of combinatorics 11 (2004), #R50 2
All subsequent proofs in this section and Sections 4 and 5 are proofs by induction on n.
The induction hypothesis is
Inductio...
Báo cáo toán học: "Encores on cores Julie Cain" ppsx
... differential equation argument
in the proof of Theorem 1 gives the conclusion on the size of the random core. The
modifications required for the proof of the other conclusion, on the number of vertices ... −1)(n −t) the event conditioned on cannot occur, in which
case the lemma is intended to say nothing.
Proof. The choice of a random allocation a conditional upon V and s can be done in
t...
Báo cáo toán học: "Statistics on the multi-colored permutation groups" pot
... ,r
k
;n
whose contribution to the generating function is exactly
the right side of the identity. Then, we have to construct a killing involution on G
r
1
, ,r
k
;n
−
S, i.e., an involution on G
r
1
, ... diagram to
the multi-colored permutation group. We also thank Toufik Mansour for fruitful discus-
sions.
References
[1] E. Bagno and D. Garber, On the excedance number of c...
Báo cáo toán học: "Positivity of three-term recurrence sequences" doc
... our
proof of Proposition 2.1.
Acknowle dgment
The author thanks Prof. Y. Wang, who first ask her about the positivity problem of
recurrence sequences and give helpful suggestions in the preparation of ... Anal. 14 (1983) 396–398.
the electronic journal of combinatorics 17 (2010), #R57 8
Positivity of three-term recurrence sequences
∗
Lily L. Liu
School of Mathematical Scienc...