Báo cáo toán học: "A conjecture of Biggs concerning the resistance of a distance-regular graph" potx
Báo cáo toán học: "A conjecture of Biggs concerning the resistance of a distance-regular graph" potx
... the resistance
of a distance-regular graph
Greg Markowsky Jacobus Koolen
gmarkowsky@gmail.com jacobus
koolen@yahoo.com
Pohang Mathematics Institute Department of Mathematics
POSTECH POSTECH
Pohang, ... Introduction
The main goal of this paper is to prove the following conjecture of Biggs:
Theorem 1 Let G be a distance-regular graph with degree larger than 2 and dia...
Báo cáo toán học: "COMPOSITION SUM IDENTITIES RELATED TO THE DISTRIBUTION OF COORDINATE VALUES IN A DISCRETE SIMPLEX" pptx
... k
is a pair consisting of a picture of weight k and a k-element subset of N that we will call the
label set of the card. A hand of weight n and size l is a set of l cards whose weights add up
to ... n and whose label sets form a partition of {1, 2, ,n} into l disjoint groups. The goal of
labelled counting is to establish a relation between the cardinality...
Báo cáo toán học: "Parking functions, empirical processes, and the width of rooted labeled trees" pps
... Counting labelled trees. Canadian Mathematical Monographs, No.
1, Canadian Mathematical Congress, Montreal.
[21] A. M. Odlyzko, H.S. Wilf, (1987) Bandwidths and profiles of trees. J. Comb. Theory,
Ser. ... a
0
and
y
(n)
k
= a
0
+ a
1
+ + a
k
− k,
y
(n)
k
−y
(n)
k−1
= a
k
−1.
The proof of Theorem 1.1 relies on the expression of the profile and of the width of
the t...
Báo cáo toán học: "Invariant and coinvariant spaces for the algebra of symmetric polynomials in non-commuting variables" pps
... (16). Analyzing the
abelianization map ab : T → S (the map making the variables x commute), Ro sas
and Sagan [15, Thm. 2.1] show that ab|
N
satisfies:
ab(m
A
) = λ (A)
!
m
λ (A)
. (19)
In particular, ... elu-
cidate a relationship between the space S
W
and the subalgebra T
W
of W-invariants in T .
The subalgebra T
W
was first studied in [4, 20] with the aim of obtaining n...
Báo cáo toán học: "Using Boundary-Operator Method for Approximate Solution of a Boundary Value Problem (BVP) for Triharmonic Equation" ppsx
... Vietnam Journal of Mathematics 33:1 (2005) 9–17
Using Boundary-Operator Method
for Approximate Solution of a Boundary Value
Problem (BVP) for Triharmonic Equation
*
Dang Quang A
Hanoi Institute of ... is the solution of
the equation (8) - (10) uniquely defines a function u which is the solution of the
Problem (1) such that the relation (7) is valid.
Proof. The Part...
Báo cáo toán học: "Combinatorial Interpretations for Rank-Two Cluster Algebras of Affine Type." docx
... that the coefficient of x
i
1
x
j
2
in x
n
is actually the cardinality of a certain set of combinatorial objects, namely, the
set of those perfect matchings of a particular graph that contain a specified ... square and
octagon, leaving only a square for the graph of a
1
. (When we construct the graph asso-
ciated to a
2
from the graph for a
1
, we do not add...
Tài liệu Báo cáo khoa học: Local stability identification and the role of a key aromatic amino acid residue in staphylococcal nuclease refolding pdf
... Institute of BioAgricultural Sciences, Academia Sinica, Taipei, Taiwan, ROC
2 Institute of Physics, Academia Sinica, Taipei, Taiwan, ROC
3 Department of Biochemistry, University of Minnesota College of ... structure-based analysis of
staphylococcal nuclease. Proteins: Structure, Function
and Genetics 27, 171–183.
15 Flanagan JM, Kataoka M, Fujisawa T & Engelman
DM (1993) Mutat...
Báo cáo khoa học: Interaction between Lim15/Dmc1 and the homologue of the large subunit of CAF-1 – a molecular link between recombination and chromatin assembly during meiosis pot
... Koshiyama A, Hamada FN, Namekawa SH, Iwabata
K, Sugawara H, Sakamoto A, Ishizaki T & Sakaguchi
K (2006) Sumoylation of a meiosis-specific RecA homo-
log, Lim15/Dmc1, via interaction with the small ... Iwabata K, Koshiyama A, Yamaguchi T, Sugawara H,
Hamada FN, Namekawa SH, Ishii S, Ishizaki T, Chiku
H, Nara T et al. (2005) DNA topoisomerase II interacts
with Lim15/Dmc1 in meiosis....
Báo cáo khoa học: Arginine-induced conformational change in the c-ring ⁄a-subunit interface of ATP synthase ppt
... CuP-catalyzed air oxidation of the
membranes was carried out at pH 8. The numbers below the figure are the average (mean) yields of ac cross-link formation (as a percentage
of the total amount of a subunit). ... reorientations were tried, as well
as removal of the harmonic restraints on the backbone
atoms around the binding pocket. Manual placement of
aI225–aM23...
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