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Volume
8, No.
3,
September
2015
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Articles |
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Characterizations of Some New Classes of Fuzzy Sets in Generalized Fuzzy Topology
In the present paper we introduce the concepts of maximal μf-open sets, minimal μf-closed sets, local minimal μf-open sets etc. in a generalized fuzzy topological space. We study their fundamental properties and discuss relations among these different μf-open like sets. |
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D. Mandal
Sumita Das (Basu)
M. N. Mukherjee
JJMS, 2015, 8(3),195-207
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Recurrence Relations for Moments and Moment Generating Functions from the Extended Type I Generalized Logistic Distribution Based on K − Th Lower Record Values
In this study we give explicit expressions and some recurrence relations for marginal and joint moment generating functions of k-th lower record values from extended type I generalized logistic distribution. Further a characterization of this distribution by considering recurrence relations for marginal moment generating functions of the k-th lower record values is presented. |
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Devendra Kumar
JJMS, 2015, 8(3),209-222
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The Norm of Certain Matrix Operators on New Difference Sequence Spaces
The
purpose
of the
present
study is
to
introduce
the
sequence
space
lp(∆,E)
=
{
x = (xn)∞
n=1
:
∑∞
n=1
|xminEn
- xminEn+1|
p
<
∞}.
where E
= (En)
is a
partition
of nite
subsets
of the
positive
integers
and p
≥1.
The
topological
properties
and
inclusion
relations
of this
space
are
studied.
Moreover,
the
problem
of
finding
the norm
of
certain
matrix
operators
such as
Copson
and
Hilbert
from
lp
into
lp
(∆,E)
is
investigated. |
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H. Roopaei
Davoud
Foroutannia
JJMS,
2015, 8(3),223-237
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Some
Results
on A
Cone
Rectangular
Metric
Space
The
notion
of cone
rectangular
metric
spaces
was
introduced
by A.
Azam, M.
Arshad
and I.
Beg in
[1]
(Applicable
Analysis
and
Discrete
Mathematics,
2009).
The
object
of this
paper is
to prove
some
common
fixed
point
result
for two
weakly
compatible
self
maps
satisfying
a
generalized
contractive
condition
in a
cone
rectangular
metric
space.
Our
result
generalizes
the said
result
of [1].
All the
results
presented
in this
paper
are new.
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Shishir Jain
Shobha Jain
JJMS,
2015, 8(3),239-255
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Forecasting
the
Tea
Production
of
Bangladesh:
Application
of
ARIMA
Model
Bangladesh
is the
world’s
10th
largest
tea
producer
and
fifteen
number
exporters
and
sixteen
number
consumers
in the
world.
The
consumption
is
increasing
day by
day
mainly
due to
the
rapid
increase
in
population.
The main
purpose
of this
research
is to
identify
the
Auto-Regressive
Integrated
Moving
Average
(ARIMA)
model
that
could be
used to
forecast
the
production
of tea
in
Bangladesh.
This
study
considered
the
published
secondary
data of
yearly
tea
production
in
Bangladesh
over the
period
1972 to
2013.
According
to AIC,
AICC and
BIC, the
most
suitable
model to
forecast
the tea
productions
in
Bangladesh
is ARIMA
(0,2,1).
Adequacy
of the
fitted
model
has been
tested
using
Run test
and
Jarque
and Bera
test
criteria
followed
by
residual
analysis.
The
comparison
between
the
original
series
and
forecasted
series
shows
the same
manner
indicating
the
fitted
model
behaved
statistically
well and
suitable
to
forecast
the Tea
productions
in
Bangladesh
i.e.,
the
models
forecast
well
during
and
beyond
the
estimation
period.
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Md. Moyazzem
Hossain
Faruq Abdulla
JJMS,
2015, 8(3),257-270
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