Báo cáo toán học: "Global alliances and independent domination in some classes of graphs" pdf
Báo cáo toán học: "Global alliances and independent domination in some classes of graphs" pdf
... γ(G) and i(G) are respectively the minimum cardinality
of a dominating set and of an independent dominating set and β(G) is the maximum
cardinality of an independent set. Alliances are defined in ... corona of a graph is obtained by
attaching a pendant edge at each vertex of G.
the electronic journal of combinatorics 15 (2008), #R123 2
Global alliances and indepe...
Báo cáo toán học: "On subgraphs induced by transversals in vertex-partitions of graphs" potx
... 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 G(3) using colors 1, 2, 3, 4 and containing no induced rainbow
copy of ... 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 cont...
Báo cáo toán học: " Tight Quotients and Double Quotients in the Bruhat Order" doc
... also
carries a standard ordering relative to the root system Φ; however, these two “standard”
orderings of V coincide: a point in Span Φ is in the positive span of Φ
+
if and only if it
is in the positive ... pair of simple roots in their orbits: ω
n−1
in B
n
and D
n
(n 4only),
ω
2
in H
3
and E
6
, ω
1
in E
7
, ω
8
in E
8
,and
4
in H
4
. It follows via Lemma...
Báo cáo toán học: "Topological circles and Euler tours in locally finite graphs" pptx
... F
1
, F
2
of F
and joining every vertex of F
1
to its copy in F
2
by an edge. The subgraph H of |G| we
choose consists of the copies of D in both F
1
, F
2
. Its closure H contains all ends of G.
Note ... since f must appear in an odd number of elements of {C
i
} and thus of K
n
.
Moreover, D does not contain any edge in E
n
− f , as those edges appear in an ev...
Báo cáo toán học: "Rationality, irrationality, and Wilf equivalence in generalized factor order" ppsx
... because of the embedding
factor w
′
= 343 which has embedding index 5, and the two 2’s of u are in po sitions 6 and
7. Note that we obtain ordinary factor order by taking P to be an antichain. Also, ... 2313, and 2231. The embedding
indices of v in the first three compositions are 2, 1, and 1 (respectively); while those of u
in the second three are 2, 1, and 2. Thus pre...
Báo cáo toán học: "Bootstrap Percolation and Diffusion in Random Graphs with Given Vertex Degree" pptx
... Lelarge. Diffusion of innovations on random networks: Understanding the chasm.
In Proceedings of WINE 2 008, pages 178–185, 2008.
[20] M. Molloy and B. Reed. A critical point for random graphs with ... mathematical proof of his heuristic results.
In the rest of this introductory section, we provide some of the applications of our main
theorems above. But let us first briefly...
Báo cáo toán học: "Dry matter and nitrogen allocation in western redcedar, western hemlock, a" ppsx
...
properties
of
the
soils,
including
concentra-
tions
of
C
and
N
and
of
extractable
and
potentially
min-
eralizable
NH
4+
-N
and
NO
3-
-N,
are
included
in
table
II.
The
C/N
ratios ...
species
in
N-form
preferences.
Inherent
differences
in
growth
rate
and
nutrient
acquisition
should
be
evaluated
at
mul-
tiple
intervals
[31]
and/ or
for
se...
Báo cáo toán học: "Partitions, rooks, and symmetric functions in noncommuting variables" pdf
... in the lattice of par titio ns, so π
x
is obtained by merging
blocks of π. Equivalently, p
π
is the sum of all monomials where the indices in the jth
and kth places are equal if j and k are in ... boards by letting the unit rook correspond to the empty
partition. Consider the vector space QR of all formal linear combinations of rooks in R.
By both extending
ˆ
⊕ linearly...
Báo cáo khoa học: Characterization, localization and possible anti-inflammatory function of rat histone H4 mRNA variants potx
... chemokine interleukin-8 (GRO ⁄ CINC-1) in response to lipopolysac-
charide. The presence of H4-v.1 and histogranin mRNAs in tissues wherein
immune reactions take place and the inhibitory effects of ... transla-
tion of a minigene with an ORF coding for a peptide
of eight amino acids or fewer inhibits protein synthesis
by a phenomenon of ‘dropping off’ of the peptide
from r...
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