Báo cáo toán học: "q-Eulerian polynomials and polynomials with only real zeros" potx
Báo cáo toán học: " The structural and optical properties of GaSb/InGaAs type- quantum dots grown on InP (100) substrate" ppt
... feature of the type-I band transition. Therefore, the interband
transition of the GaSb QD would be the only proper origin of the high-energy peak. In
the growth process of the sample, the InGaAs ... light emission intensity of the GaSb QD could be stronger than the
type II transition due to the stronger spatial confinement of carriers in the QD and the...
Báo cáo toán học: " Structural, optical and magnetic studies of manganese-doped zinc oxide hierarchical microspheres by self-assembly of nanoparticles" docx
... formatted
PDF and full text (HTML) versions will be made available soon.
Structural, optical and magnetic studies of manganese-doped zinc oxide
hierarchical microspheres by self-assembly of nanoparticles
Nanoscale ... original work is properly cited.
1
Structural, optical, and magnetic studies of manganese-doped zinc oxide
hierarchical micros...
Báo cáo toán học: " Weak compactness and the Eisenfeld-Lakshmikantham measure of nonconvexity" potx
... nonempty and closed sub-
sets of B
X
such that lim
n
à(A
n
) = 0, the set A
=
n=1
A
n
is
nonempty and convex.
(iv) The measure à satises the Cantor property in X.
Proof. The equivalence of (i) and ... subsets of the bounded and convex set coC,
then à(C
n
) = 0 (n ∈ N), and therefore C
∞
= ∅. Appealing again to the
ˇ
Smulian theorem [6, Theorem V.6.2] we find t...
Báo cáo toán học: " Combined perception and control for timing in robotic music performances" ppt
... engage in music performance via real-time interaction remained as one
of the challenging problems in the field. Yet, robotic performance is criticized
for being to mechanical and robotic [1]. In this ... methods for tempo tracking
and rhythm quantization. J Artif Intell Res 2003, 18:45–81
[14] Raphael C: Music plus one and machine learning. In International
Conference...
Báo cáo toán học: " Determinantal expression and recursion for Jack polynomials" ppt
... ÃÃÃ+
m
à
(n1)
row
n
, and thus the determinant must vanish.
3 Recursion for quasi-triangular matrices
We use the determinantal expressions for Jack and Schur polynomials to obtain recur-
sive formulas. First ... these results yields a determinantal formula
for the Schur functions and a recursion for the Kostka numbers.
1
the electronic journal of combinatorics 7 (2000...
Báo cáo toán học: "MacWilliams identities and matroid polynomials" doc
... the identities (3.1), (3.2), (3.3), and (3.4) show that
A
[m]
C
{z
e
}
E
depends only on the matroid M
C
. Hence, condition 2 in Theorem 15
is satisfied by the identities (3.2) and (3.3), ... several MacWilliams type identities, including
those by Kløve and Shiromoto, and of the theorems of Greene and Barg that describe
how the Tutte polynomial of the vector matroid...
Báo cáo toán học: "Moments of characteristic polynomials enumerate two-rowed lexicographic arrays" ppsx
... interpretation of moments of the characteristic
polynomials enables an explicit formula to be obtained for the total number of two-rowed
lexicographic arrays constructed from the letters of an alphabet of ... provided for the moments of characteristic
polynomials of random unitary matrices. This leads to a rather unexpected con-
sequence of the Keating and Snaith c...
Báo cáo toán học: " h∗-vectors, Eulerian polynomials and stable polytopes of graph" pdf
... subcomplex
of the boundary complex of a simplicial polytope. Sections 4 and 5 include applications of
Theorem 1.1 to order polytopes of (not necessarily graded) posets and to stable polytopes
of perfect ... collection of convex polytopes in R
N
such that (i) any face of a
polytope in F is also in F and (ii) the intersection of any two polytopes in F is a (possi...
Báo cáo toán học: "SIGNED WORDS AND PERMUTATIONS, II; THE EULER-MAHONIAN POLYNOMIALS" doc
... record values
and the length function. Two approaches are here systematically explored, us-
ing the flag-major index on the one hand, and the flag-inversion number on the
other hand. The MacMahon ... using the “fmaj” interpretation, on the one hand, and the “finv”
geometry, on the other. In each case we will go beyond the three-variable case, as
we consider the gene...
Báo cáo toán học: "A note on polynomials and f -factors of graphs" docx
... mind, we define a partial f- factor of a graph G = (V, E) to be an
˜
f- factor of
G where
˜
f( v) = f( v) ∪ {0} for all v ∈ V , and a partial f- factor of G is non-trivial if it is
non-empty. Our next result ... sufficient condition for the existence of an f- factor of G. No necessary and
sufficient condition for an f- factor exists when we allow |f( v)| ≥ 2, even when |f( v)|...
Báo cáo toán học: "q-Eulerian polynomials and polynomials with only real zeros" potx
... Brenti and Brăanden about
the q-Eulerian polynomials by the recurrence (1) and by induction.
the electronic journal of combinatorics 15 (2008), #R17 4
q-Eulerian polynomials and polynomials
with only ... (10) and the fact that A
n
(x) has only real zeros,
Wilf can show that R
n
(x) has only real zeros for n ≥ 2 (see B´ona [1, Theorem 1.41] and
Stanley [12] for det...
Báo cáo toán học: "Area distribution and scaling function for punctured polygons" potx
... ∞.
References
[1] Madras N and Slade G 1993 The Self-Avoiding Walk (Boston: Birkhăauser)
[2] Hughes B D 1995 Random Walks and Random Environments, Vol I Random Walks
(Oxford: Clarendon)
[3] Vanderzande C 1998 ... quite
straight-forward to generalise the algorithm to count twice punctured staircase polygons
and in this case we obtained the series to perimeter 502 for k = 0, perimeter...
Báo cáo toán học: "Ratio Monotonicity of Polynomials Derived from Nondecreasing Sequences" docx
... + 1)
(m − k)(m + k + 1)
< 1.
the electronic journal of combinatorics 17 (2010), #N37 7
Ratio Monotonicity of Polynomials Derived
from Nondecreasing Sequences
Willia m Y. C. Chen
1
, Arthur ... relations of the coefficients.
Keywords: log-concavity, ratio monotonicity, Boros-Moll polynomials.
1 Introduction
This pap er is concerned with the ratio monotone prop erty of p...
Báo cáo toán học: "On Multivariate Chromatic Polynomials of Hypergraphs and Hyperedge Elimination" docx
... paper we introduce multivariate hyperedge elimination polynomials and
multivariate chromatic polynomials for hypergraphs. The first set of polynomi-
als is defined in terms of a deletion-contraction-extraction ... Polynomial for Special Classes of
Hypergraphs
Here we study the multivariate chromatic polynomials of complete r-uniform hypergraphs,
complete r-unifo...