|
Latest
Issue
Volume
12, No.
1,
March
2019
|
Articles |
|
|
|
t-Norms Over
Q-Fuzzy
Subgroups of
a Group
In this
paper,
Q-fuzzy
subgroups
and normal
Q-fuzzy
subgroups of
group G with
respect to
t-norm T are
defined and
investigated
some of
their
properties
and
structured
characteristics.
Next the
properties
of them
under
homomorphisms
and anti-homomorphisms
are
discussed.
|
|
R. Rasuli
H. Naraghi
JJMS,
2019, 12(1),1-13
 |
Economic Order Quantity Models for Price Dependent Demand and Different Holding Cost Functions
Demand
for
any
type
of
item
depends
on
its
nature
like;
sensitivity
for
the
price
and
degree
of
freshness.
Previous
inventory
models
usually
assumed
that
the
demand
of
the
commodities
was
constant
or
stock-dependent.
This
paper
develops
an
EOQ
models
for
items
whose
demand
is a
decreasing
function
of
selling
price.
The
first
model
assumes
holding
cost
is
non-linear
multiplicative
function
of
selling
price
and
time.
In
the
second
model
holding
cost
is
considered
................
|
|
R. P.
Tripathi
JJMS,
2019, 12(1),15-33
|
Irreducible & Strongly Irreducible Bi-Ideals of Γ-So-Rings
The set of all partial functions over a set under a natural addition
(disjoint-domain sum), functional composition and functional relation on them, forms a Γ-so-ring. In this paper we introduce the notions of irreducible bi-ideal, strongly irreducible bi-ideal and strongly prime bi-ideals of Γ-so-rings and we prove that a bi-ideal is strongly irreducible if and only if it is strongly prime in a class of Γ-so-rings.
|
|
Dr. P. V.
Srinivasa
Rao
Dr. M. Siva
Mala
JJMS,
2019, 12(1),35-49
|
The Adjacency-Jacobsthal Sequence in Finite Groups
The adjacency-Jacobsthal sequence and the adjacency-Jacobsthal matrix were defined by Deveci and Artun (see [5]). In this work, we consider the cyclic groups which are generated by the multiplicative orders of the adjacency-Jacobsthal matrix when read modulo α(α > 1). Also, we study the adjacency-Jacobsthal sequence modulo α and then we obtain the relationship among the periods of the adjacency-Jacobsthal sequence ...................
|
|
Erdal
Karaduman
Yeşim Aküzüm
Ömür Deveci
JJMS, 2019,
12(1),51-58
|
On the Third Hankel Determinant for a Subclass of Close-to-Convex Functions
Let A denote the class of all normalized analytic function f in the
unit disc U of the form f(z) = z + Σ1n=2 anzn. The object of this paper is to obtain a bound to the third Hankel determinant denoted by H3(1) for a subclass of close-to-convex functions.
|
|
Pravati
Sahoo
JJMS, 2019,
12(1),59-73
|
Odd Vertex Equitable Even Labeling of Ladder Graphs
Let G be a graph with p vertices and q edges and A={1,3, . . . ,q} if q is odd or A={1,3, . . . ,q+1} if q is even. A graph G is said to admit an odd vertex equitable even labeling if there exists a vertex labeling f : V (G) → A that induces an edge labeling f٭ defined by f٭ (uv) = f(u)+f(v) for all edges uv such that for all a and b in A, |vf (a) -vf (b)|≤1 and the induced edge labels are 2; 4; : : : ; 2q where vf (a) be the number of vertices v .......................
|
|
P. Jeyanthi
A. Maheswari
M.
Vijayalakshmi
JJMS, 2019,
12(1),75-87
|
|
Solving the
Optimal
Control
Problems
with
Constraint
of Integral
Equations
Via Müntz
Polynomials
In this
study, an
efficient
numerical
scheme is
presented
for solving
a class of
optimal
control
problems
governed by
the form of
the
Volterra-Fredholm
integral
equation.
The
technique
based upon
approximating
the state
and control
functions by
Müntz
polynomials.
The
numerical
integration
and new
approach
utilized to
discretize
the optimal
control
problem to a
nonlinear
programming
using the
Chebyshev
nodes
together
with the
Gauss
quadrature
rule.
Finally,
numerical
examples
illustrate
the
efficiency
of the
proposed
method. |
|
Neda
Negarchi
Kazem Nouri
JJMS, 2019,
12(1),89-102
|
|
