Báo cáo toán học: "On Subsequence Sums of a Zero-sum Free Sequence" potx
Báo cáo toán học: "On Subsequence Sums of a Zero-sum Free Sequence" potx
... (g, a
1
, . . . , a
k−1
). Since S is zero-sum free and g = −g,
we have that
a
1
, a
1
+ a
2
, . . . , a
1
+ a
2
+ . . . + a
k−1
g, g + a
1
, g + a
1
+ a
2
, . . . , g + a
1
+ a
2
+ . . . + a
k−1
are ... (2007), #R52 2
On Subsequence Sums of a Zero-sum Free Sequence
Fang Sun
Center for Combinatorics, LPMC
Nankai University, Tianjin, P.R. China
sunfa...
Báo cáo toán học: "On Subsequence Sums of a Zero-sum Free Sequence II" doc
... to appear in
Advanced Courses in Mathematics CRM Barcelona.
[9] A. Geroldinger and F. Halter-Koch, Non-Unique Factorizations. Algebraic, Combina-
torial and Analytic Theory, Pure and Applied Mathematics, ... + B = {a + b | a ∈ A, b ∈ B} denotes
their sumset. The stabilizer of A is defined as Stab (A) = {g ∈ G | g + A = A} , A is
called periodic if Stab (A) = {0}, and we set A =...
Báo cáo toán học: "On the Proof of a Theorem of P´lfy a" doc
... y.
Proof. As x and y are abelian, and a transitive abelian subgroup is regular [3,
Theorem 4. 2A (v)], we have that fix
x
(B) and fix
y
(B) have order k and x/B, y/B
are cyclic of order ... seem
to make transparent why the condition gcd(n, ϕ(n)) = 1 is crucial. We shall show that
Lemma’s 1.2-1.4 of [6] can more or less be replaced by an application of Philip Hall’s
general...
Báo cáo toán học: "On the number of possible row and column sums of 0,1-matrices" pps
... R. Snow, and N. Wallach. A combinatorial problem associated with nono-
grams, Linear Algebra and its Applications, Volume 412, Issue 1, 1 January 2006,
Pages 30–38.
[2] R. H. Brualdi and H. J. ... number of rows of R that have exactly j ones. Write a = (a
0
, ,a
n
)=
a( x)inN
n+1
.Wenotethat |a| = m,andwrite
m
a
for the multinomial coefficient
m!
a
0
!·· a
n
!
With this nota...
Báo cáo toán học: " On the boundedness of the solutions in nonlinear discrete Volterra difference equations" pot
... discrete
Volterra difference equations
Istv´an Gy˝ori
∗1
and Essam Awwad
1,2
1
Department of Mathematics, Faculty of Information Technology, University of Pannonia, Hungary
2
Department of Mathematics, Faculty ... doi:10.1186/1687-1847-2012-2
Istvan Gyori (gyori@almos.uni-pannon.hu)
Essam Awwad (esam_mh@yahoo.com)
ISSN 1687-1847
Article type Research
Submission date 20 April 2011
Accep...
Báo cáo toán học: " On transmission performance of OFDM-based schemes using MMSE-FDE in a frequencyselective fading channel" pot
... interleaved before data modulation. A block interlea-
ver used as channel interleaver in the simulation is of
size 2a and 2b block interleaver, where a and b are the
maximum allowable integers for a ... their waveforms within
the OFDM/TDM frame and cause a higher-order spec-
tral spreading. However, a better PSD of conventional
OFDM is achieved at a cost of higher PAPR and...
Từ khóa: