2006
1
2
0
84
SPECTRUM OF THE FOURIER-STIELTJES ALGEBRA OF A SEMIGROUP
2
2
For a unital foundation topological *-semigroup S whose representations separate points of S, we show that the spectrum of the Fourier-Stieltjes algebra B(S) is a compact semitopological semigroup. We also calculate B(S) for several examples of S.
1
8
M.
AMINI
M.
AMINI
A. R.
MEDGHALCHI
A. R.
MEDGHALCHI
Fourier algebra
Fourier-Stieltjes algebra
amenability
weakly and strongly almost periodic functions
spectrum
foundation topological *-semigroups.
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BLOW-UP AND NONGLOBAL SOLUTION FOR A FAMILY OF NONLINEAR HIGHER-ORDER EVOLUTION PROBLEM
2
2
In this paper we consider a kind of higher-order evolution equation as^{kt^{k} + ^{k;minus1}u/t^{k;minus1} +• • •+ut ;minus{delta}u= f (u, {delta}u,x). For this equation, we investigate nonglobal solution, blow-up in finite time and instantaneous blow-up under some assumption on k, f and initial data. In this paper we employ the Test function method, the eneralized convexity method and Galerkin’s method for some of our proofs. Moreover, occasionally by changing P.D.E problems to some ordinary differential inequalities, we investigate this kind of higher-order evolution equations.
9
30
H.
ASSA
H.
ASSA
M.
HESAARAKI
M.
HESAARAKI
A.
MOAMENI
A.
MOAMENI
Higher-order evolution equations
blow-up
nonglobal solution
instanta instantaneous blow-up.
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RICCI CURVATURE OF SUBMANIFOLDS OF A SASAKIAN SPACE FORM
2
2
Involving the Ricci curvature and the squared mean curvature, we obtain basic inequalities for different kind of submaniforlds of a Sasakian space form tangent to the structure vector field of the ambient manifold. Contrary to already known results, we find a different necessary and sufficient condition for the equality for Ricci curvature of C-totally real submanifolds of a Sasakian space form, and (2) of the fact that if a C-totally real submanifold of maximum dimension satisfies the equality case, then it must be must be minimal. Two basic inequalities for submanifolds of any Riemannian manofild, one involving scaler curvature and the squared mean curvature and the other involving the invariant and the squared mean curvature are also obtained. These results are applied to get corresponding results for submanifolds of Sasakian space forms.
31
51
SUNGPU
HONG
SUNGPU
HONG
MUKUT
TRIPATHI
MUKUT
TRIPATHI
Einstein manifold
Saskian space form
Invarient submanifold
Semi-invarient submanifold
Almost semi-invariant submanifold
CR-submanifold
Slant submanifold
C-totally real submanifold
Ricci curvature
K-Ricci curvature
Scalar curvature.
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INTEGER-MAGIC SPECTRA OF CYCLE RELATED GRAPHS
2
2
For any h in N , a graph G = (V, E) is said to be h-magic if there exists a labeling l: E(G) to Z_{h}-{0} such that the induced vertex set labeling l^{+: V(G) to Z_{h}} defined by l^{+}(v)= Summation of l(uv)such that e=uvin in E(G) is a constant map. For a given graph G, the set of all for which G is h-magic is called the integer-magic spectrum of G and is denoted by IM(G). In this paper, the integer-magic spectra of certain classes of cycle related graphs will be determined.
53
63
EBRAHIM
SALEHI
EBRAHIM
SALEHI
magic
non-magic
integer-magic spectrum.
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4-PLACEMENT OF ROOTED TREES
2
2
A tree T of order n is called k-placement if there are k edge-disjoint copies of T into K_{n}. In this paper we prove some results about 4-placement of rooted trees.
65
77
H
YOUSEFI-AZARI
H
YOUSEFI-AZARI
A
GOODARZI
A
GOODARZI
Embedding
Packing
K-placement
Star-path.
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A NOTE VIA DIAGONALITY OF THE 2 × 2 BHATTACHARYYA MATRICES
2
2
In this paper, we consider characterizations based on the Bhattacharyya matrices. We characterize, under certain constraint, dis tributions such as normal, compound poisson and gamma via the diago nality of the 2 X 2 Bhattacharyya matrix.
79
84
G. R.
MOHTASHAMI BORZADARAN
G. R.
MOHTASHAMI BORZADARAN
Exponential Families
Bhattacharyya Bounds
Rao-Cramer Inequality
Fisher Information
Diagonality of the Bhattacharyya matrices.
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