12 articles in this issue
P. Jeyanthi, S. Philo, M. K. Siddiqui
A graph G(p, q) is said to be odd harmonious if there exists an injection ????: V (G) ? {0, 1, 2, · · · , 2q - 1} such that the induced function ????* : E(G) ? {1, 3, · · · , 2q - 1} defined by ????*(uv) = ???? (u) + ???? (v) is a bijection. In this paper... see more
P. Jeyanthi, A. Maheswari, M. Vijayalakshmi
Let G be a (p,q) graph. A mapping f : V (G) ? {0, 1, 2} is called 3-product cordial labeling if |v????(i) - v???? (j)| = 1 and |e???? (i) - e???? (j)| = 1 for any i, j ? {0, 1, 2},where v???? (i) denotes the number of vertices labeled with i, e???? (i) de... see more
Abednego O. Isere, J. O. Adéniran, T. G. Jaiyéolá
The smallest non-associative Osborn loop is of order 16. Attempts in the past to construct higher orders have been very difficult. In this paper, some examples of finite Osborn loops of order 4n, n = 4, 6, 8, 9, 12, 16 and 18 were presented. The orders of... see more
Bishwambhar Roy
In this paper a new class of sets termed as ?µ-regular open sets has been introduced and some of its properties are studied. We have introduced µ-nearly Lindelöfness in µ-spaces. We have shown that under certain conditions a µ-Lindelöf space [7] is equiva... see more
M. O. Aibinu, O. T. Mewomo
Let E be a uniformly smooth and uniformly convex real Banach space and E* be its dual space. We consider a multivalued mapping A : E ? 2E* which is bounded, generalized F-strongly monotone and such that for all t > 0, the range R(Jp+tA) = E*, where Jp ... see more
R. Ponraj, M. Maria Adaickalam, R. Kala
Let G be a (p, q) graph. Let f : V (G) ? {1, 2, . . . , k} be a map where k is an integer 2 = k = p. For each edge uv, assign the label |f (u) - f (v)|. f is called k-difference cordial labeling of G if |vf (i) - vf (j)| = 1 and |ef (0) - ef (1)| = 1 wher... see more
Malik Belaid, Abdelouaheb Ardjouni, Ahcene Djoudi
Let T be a time scale which is unbounded above and below and such that t0? T. Let id + h, id + r: [t0,8) n T ? T be such that (id + h)([t0,8) n T) and (id + r)([t0,8) n T) are time scales. We use the contraction mapping theorem to obt... see more
Linda D. Oudjedi, Belaib Lekhmissi, Moussadek Remili
This paper concerns the asymptotic properties of solutions of a class of third-order neutral differential equations with delay. We give sufficient conditions for every solution to be converges to zero, bounded and square integrable. An example is also giv... see more
Pankaj Kumar Das
In this paper, we study bounds on the number of check digits of linear codes that can detect multiple sub-blocks each affected by e or less random errors and can locate such corrupted multiple sub-blocks. Further, we obtain an upper bound on the number of... see more
Nuh Durna, Rabia Kiliç
The aim of this paper is to obtain the spectrum, fine spectrum, approximate point spectrum, defect spectrum and compression spectrum of the operatoron the sequence space c0 where b0, b1 , b2 are nonrzero and the nonzero diagonals are the entries of an osc... see more
H. Benbouziane, Y. Bouramdane, M. Ech-Chérif El Kettani
Let X be a Banach space and let B(X) be the Banach algebra of all bounded linear operators on X. We characterise surjective (not necessarily linear or additive) maps ? : B(X) ? B(X) such that F(? (A)? ? (B)) = F(A ? B) for all A,B ? B(X) where F(A) denote... see more
A. Lourdusamy, S. Jenifer Wency, F. Patrick
Let G be a graph with p vertices and q edges and A = {0,2,4,···, q+1} if q is odd or A = {0,2,4,···,q} if q is even. A graph G is said to be an even vertex equitable even labeling if there exists a vertex labeling f : V (G) ? A that induces an edge labeli... see more