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Recent Submissions

On additive selfdual codes over GF(4) and their applications
(Maltepe Üniversitesi, 2009)After the publication [1], additive selforthogonal codes over GF(4) under a trace inner product became of interest because of their correspondence to additive (or stabilizer) quantum errorcorrecting codes. Several papers ... 
Similarity solution of the coagulation equation in an electrorheological colloidal suspension
(Maltepe Üniversitesi, 2009)Aggregation phenomena are met in a wide variety of physical, chemical and biological processes; for example the formation of aerosols, micelles and vesicles, polymers, and even celestial bodies on astronomical scales. The ... 
Solving the boundary value problem of the wind turbine blade equation (calculation of the mode shape functions)
(Maltepe Üniversitesi, 2009)Rotor blades are the most flexible part of the wind turbine, and their modal behavior has a great influence on the overall dynamics and energetic performance of the turbine. Consequently, the calculation of mode shapes ... 
A note on the solution of the general linear matrix differential equations
(Maltepe Üniversitesi, 2009)In this paper, we extend the use of connection between the Hadamard product and diagonal extraction (vector) operator to produce a computationally efficient solution of the general linear matrix differential equations. ... 
Processing of cyclic graphs with recursive neural networks
(Maltepe Üniversitesi, 2009)Recursive neural networks are a powerful tool for processing structured data. They are filling the gap between connectionism, which is usually related to poorly organized data, and a great variety of realworld problems ... 
Three point block backward differentiation formula for solving Stiff ordinary differential equations
(Maltepe Üniversitesi, 2009)In this paper, a 3point block method based on Backward Diffeerentiation Formulas (BDF) which is called 3BBDF for solving first order Ordinary Diffeerential Equations (ODEs) using fixed step size is presented. This method ... 
Efficient block method for solving directly third order ordinary differential equations
(Maltepe Üniversitesi, 2009)In this research, a two point block direct implicit method is developed for solving directly the third order ordinary di®erential equations (ODEs) using variable step size. This method will estimate the solutions of initial ... 
Pairwise semiregular properties on generalized pairwise regularLindelöf spaces
(Maltepe Üniversitesi, 2009)In this paper we study pairwise semiregular properties of pairwise nearly regularLindelÄof, pairwise almost regular Lindelöf and pairwise weakly regularLindelöf spaces. We prove that pairwise almost regularLindelöf ... 
Some results on products of conjugacy classes
(Maltepe Üniversitesi, 2009)Let G be a finite group , A and B be conjugacy classes of G .Then for some integer n(AB) > 0 , AB = (abIa, b C G) is the union of n(AB) distinct conjugacy classes of G . In this note we study n´(AA1) for some classes of ... 
Quadrature formula for semibounded solution of characteristic singular integral equation of cauchy type
(Maltepe Üniversitesi, 2009)It is known that the solutions of characteristic singular integral equations (SIEs) are expressed in terms of singular integrals of Cauchy type with wight functions of the form w(x) = (x  a)º(b  x)¹ , where 1 < º; ¹ < ... 
Kaplansky's construction and the classes of the weak hopf algebra In 2,3 dimension
(Maltepe Üniversitesi, 2009)In this paper, we study the weak bialgebras and the weak Hopf algebras. These algebras form a class wider than the bialgebras respectively the Hopf algebras. The corresponding algebraic varieties are considered. We give ... 
Sensitivities in determining the slope parameter in functional regression
(Maltepe Üniversitesi, 2009)In multivariate linear regression analysis the slope parameter is de¯ned as ¯1 = Cov(X; Y )=var(X). Based on the fact that the predictors are uncorrelated the slope function in the functional case becomes... 
Smoothing the global mean based on functional principal component analysis
(Maltepe Üniversitesi, 2009)There are many cases in almost all application fields where the estimation of population parameters is carried out using sparse data. The data may be time or space ( r) dependent. When such data comes from a set of n ... 
Numerical solution of a nonclassical hyperbolicparabolic problem
(Maltepe Üniversitesi, 2009)This paper is a joint work with Prof. Allaberen Ashyralyev, Fatih University. Stable difference schemes of the first and second orders of accuracy for solving multidimensional hyperbolicparabolic partial differential ... 
A note on Reidemeister torsion and period matrix of Riemann surfaces
(Maltepe Üniversitesi, 2009)We consider compact Riemann surfaces §g with genus at least 2. We explain the relation between the Reidemeister torsion of §g and its period matrix. 
A new management approach to optimize the use of the operating room
(Maltepe Üniversitesi, 2009)The surgery is a highly strategic for hospitals because it is at the heart of medical and concentrated 10 to 15% of the budget of the institution for its operation. It is therefore important for hospitals to assess the ... 
On generalized weak subdifferentiability of vector valued functions from Rn to Rm
(Maltepe Üniversitesi, 2009)In this work, by using special ordering cones (Rm+ ; Rm lex) on Rm and a special vectorial norm, it is shown that Lipschitz ness of a vector valued function from Rn to Rm implies generalized lower Lipschitzness of this ... 
FPGA implementation of vedic signed multiplier
(Maltepe Üniversitesi, 2009)Vedic mathematics is the name given to the ancient Indian system of mathematics. To be precise, a unique technique of calculations based on simple rules and principles with which any mathematical problems related to ... 
Prime submodules of multiplication modules and CohenMacaulay property
(Maltepe Üniversitesi, 2009)Let R be a multiplication commutative ring with nonzero identity and M be a unitary multiplication Rmodule. A characterization of certain prime submodules of M will be presented. Also we show that if R is Noetherian and ... 
Fully spectral methods for the solution of high order differential equations
(Maltepe Üniversitesi, 2009)In the recent years spectral methods are used for solving stiff and nonstiff partial differential equations and ordinary differential equations. Various types of spectral methods for steady and unsteady problems are ...