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On Stability in Multiobjective Integer Linear Programming: A Stochastic Approach
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Qatar University
, 2006 , Article)
In this paper we consider a multiobjective integer linear stochastic programming problem individual chance constraints. We assume that there is randomness in the right-hand sides of the constraints only and that the random ...
Lumping Processes of Periodic ARMA Processes
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Qatar University
, 2004 , Article)
In this article various lumping processes are defined for periodic ARMA (PARMA) processes, namely, the forward, the backward and the cyclic lumping processes. The inter-relations between the parameters of these lumping ...
On the solution of Bicriterion Inter Nonlinear fractional programs with fuzzy parameters in the objective functions
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Qatar University
, 2001 , Article)
In this paper we consider bicriterion integer nonlinear fractional programs having fuzzy parameters in the objective functions. For such programs, a solution algorithm is described to solve the formulated model. The results ...
Generation of Sets of Sequences lsomorphic to Walsh Sequences
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Qatar University
, 2005 , Article)
Walsh sequences of the order 2k, k positive integer, form an additive group generated by Rademacher sequences set of ft-order. Except the zero sequence, Walsh sequences form an orthogonal set. Our present work allows us ...
A Rational Exponential Model for Unconstrained Non-Linear Optimization
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Qatar University
, 2002 , Article)
In this Paper, a new algorithm based on the non-quadratic model is suggested for solving unconstrained optimization problems which modifies the classical conjugate gradiant methods. This technique has the same properties ...
Some Inferential Problems in Finite Population Sampling
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Qatar University
, 2004 , Article)
We review some results in problems of estimating a finite population total (mean) through a sample sur¬vey. Section 2 considers inference under a fixed population model and Section 3 addresses the same prob¬lem when the ...
Gravitational Instability of a Radiating Gas Cloud with Variable streams
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Qatar University
, 2001 , Article)
The self-gravitating instability of a radiating gas cloud possessing variable streams is investigated. The self-gravitating force is destabilizing according to restrictions, the radiation has a strong stabilizing influence ...
Some Results Concerning Cobb - Voxman's Conjecture
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Qatar University
, 2000 , Article)
In this paper we shall give some partial results of the following conjecture raised in [3]: Suppose that X is a connected space with a dispersion point p and let f: X —> X be a nonconstant continuous function. Then f(p) = p.
Elliptic surfaces over a genus 1 curve with exactly the pair (I8, IV) of singular fibers
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Qatar University
, 2000 , Article)
In this paper we classify all minimal elliptic surfaces (TI : E —> C) over a genus 1 curve C, with a section and exactly the pair (Is, IV) of singular fibers.
Elliptic surfaces over a genus 1 curve with the pair (l3, l9) of singular fibers.
(
Qatar University
, 2000 , Article)
In this paper we give a classication of all minimal elliptic surfaces (n : E —> C, g(c) = 1) with a section and exactly the pair (L, L)) of singular fibers.