Báo cáo toán học: "rees and Matchings" ppt
Báo cáo toán học: "rees and Matchings" ppt
... generate random
matchings rather than merely count them, then, given a random bit, a random matching
in the before graph is readily transformed into a random matching in the after graph,
and conversely, ... v
1
and v
2
of G are
connected by an edge, and that f is a face bounded by this edge. The height difference
between the diagonal from v
1
to f and the diagonal from v
2
to f is dete...
Báo cáo toán học: " Existence and uniqueness of nonlinear deflections of an infinite beam resting on a non-uniform nonlinear elastic foundation" pptx
... supported, and it is
21
We have a few assumptions on f(u, x) and w(x). There are four assumptions F1, F2, F3,
F4 on f, and two W1, W2 on w. As one can find out soon, they are general enough, and
have ... right-continuous, and thus, is continuous.
By (11) and (14), we have ηk ≤ f
u
(0, x) ≤ k, and so −(1 −η) k ≤ f
u
(0, x) −k ≤ 0 for every
10
Figure 1: Infinite beam on nonlinear a...
Báo cáo toán học: " Minimal and maximal solutions to first-order differential equations with state-dependent deviated arguments" pptx
... Remark 2, the lower solution α and the upper solution
β satisfy, respectively, inequalities (7) and (8) and, conversely, if α and β
satisfy (7) and (8) then they are lower and upper solutions in the ... ∈ I
−
and
β
(t) = m ≥ max
y ≤max
I
β(t)
f(y) for all t ∈ I
0
. (25)
So we deduce from (24) and (25) that α and β are lower and upper
solutions for problem (13).
16 Rub´...
Báo cáo toán học: " DWT and LPC based feature extraction methods for isolated word recognition" pptx
...
subbands of uniform bandwidth by two level wavelet packet transform.
Then, the prediction coefficients were estimated from the subbands of
uniform decomposition similar to first type and were ...
considered the 21 coefficients in LPCC and MFCC feature vectors (7
LPC/MFCC coefficients and their first and second derivatives). The
performances of LPCC, MFCC, and WLPC (UWLPC/ DWLP...
Báo cáo toán học: " Universal and efficient compressed sensing by spread spectrum and application to realistic Fourier imaging techniques" ppt
... signal x with a random waveform and
randomly under-sample the result in time-domain. The random convolution is performed through a
random pre-modulation in the Fourier domain and the signal thus ... value.
16
Universal and efficient compressed sensing by spread spec-
trum and application to realistic Fourier imaging techniques
Gilles Puy
∗1,2
, Pierre Vandergheynst
1
, R´emi Gribonval
3...
Báo cáo toán học: " Existence and multiplicity of solutions for nonlocal p(x)-Laplacian equations with nonlinear Neumann boundary conditions" ppt
... (f
1
) and (f
5
) we have|Φ(u)| ≤ C
2
u
β
3
r
1−
, and in the similar way
from(g
1
) and (g
5
) we have |Ψ(u)| ≤ C
2
u
r
2−
. Thus by (H
4
), we conclude that
there exist positive constants ρ and ... assume M
ε
>
C
1
µ
and M
ε
>
C
2
θµ
. Note that in this case the inequalities
Ω
F (x, u)dx ≥ M
ε
and
∂Ω
G(x, u)dσ ≥ M
ε
are equivalent to
Ω
F (x, u)dx
≥
M...
Báo cáo toán học: "Regularity and Isomorphism Theorems of Generalized Order - Preserving Transformation Semigroups" ppt
... theorem as
follows: For posets X and Y , OT (X)
∼
=
OT (Y ) if and only if X and Y are order-
isomorphic or anti- order-isomorphic. Let Z and R denote the set of integers
and the set of real numbers, ... θ
−1
θβ = β.
Also, for γ ∈ OT (X )and ∈ OT (Y ), we have γθ
−1
,θ
−1
λ ∈ OT(X, Y )and
(γθ
−1
)θ = γ and θ(θ
−1
λ)=λ. Hence (i) and (ii) are proved.
3. Regularity and Isomor...
Báo cáo toán học: "Triangulations and the Haj´s Conjecture " ppt
... if and only if it holds for
˜
H
t
.
Let v and e (˜v and ˜e) be the number of vertices and edges of H (and
˜
H
t
), respectively.
Clearly, ˜v = v + t and ˜e = e +
t
2
+ vt.If
˜
H
t
triangulates ... (P
q
)=
GF (q) and two distinct vertices x, y are adjacent if and only if x − y = z
2
for some
z ∈ GF(q). Since p ≡ 1(mod4),x − y is a square if and only if y − x is a square,...