Browsing Bilgisayar Bilimleri Fakültesi/Faculty of Computer Sciences by Title
Now showing items 120 of 34

APPLICATION OF THE COLLOCATION METHOD WITH BSPLINES TO THE GEW EQUATION
(KENT STATE UNIVERSITYETNA, DEPT MATHEMATICS & COMPUTER SCIENCE, KENT, OH 442420001, 2017)In this paper, the generalized equal width (GEW) wave equation is solved numerically by using a quintic Bspline collocation algorithm with two different linearization techniques. Also, a linear stability analysis of the ... 
A collocation algorithm based on quintic Bsplines for the solitary wave simulation of the GRLW equation
(SHARIF UNIV TECHNOLOGY, PO BOX 111558639, TEHRAN, 00000, IRAN, 2019)In this article, a collocation algorithm based on quintic Bsplines is proposed to find a numerical solution to the nonlinear Generalized Regularized Long Wave (GRLW) equation. Moreover, to analyze the linear stability of ... 
Comparative assessment of smooth and nonsmooth optimization solvers in HANSO software
(Balikesir University, 2021)The aim of this study is to compare the performance of smooth and nonsmooth optimization solvers from HANSO (Hybrid Algorithm for Nonsmooth Optimization) software. The smooth optimization solver is the implementation of ... 
Eigenvalue problems for nonlinear thirdorder mpoint pLaplacian dynamic equations on time scales
(WILEY111 RIVER ST, HOBOKEN 070305774, NJ, 2016)This work deals with the existence and uniqueness of a nontrivial solution for the thirdorder pLaplacian mpoint eigenvalue problems on time scales. We find several sufficient conditions of the existence and uniqueness ... 
EIGENVALUE PROBLEMS FOR SINGULAR MULTIPOINT DYNAMIC EQUATIONS ON TIME SCALES
(TEXAS STATE UNIV, 601 UNIVERSTITY DRIVE, SAN MARCOS, TX 78666 USA, 2017)In this article, we study a singular multipoint dynamic eigenvalue problem on time scales. We find existence of positive solutions by constructing the Green's function and studying its positivity eigenvalue intervals. Two ... 
Existence of Countably Many Positive Solutions for Nonlinear Boundary Value Problems on Time Scales
(NATURAL SCIENCES PUBLISHING CORPNSPPO BOX 32038, ISA TOWN 00000, BAHRAIN, 2014)In this paper, we consider the existence of countably many positive solutions for nonlinear singular boundary value problem on time scales. By using the fixedpoint index theory and a new fixedpoint theorem in cones, the ... 
Existence of multiple positive solutions for pLaplacian multipoint boundary value problems on time scales
(SPRINGEROPEN, CAMPUS, 4 CRINAN ST, LONDON, N1 9XW, ENGLAND, 2013)In this paper, we consider pLaplacian multipoint boundary value problems on time scales. By using a generalization of the LeggettWilliams fixed point theorem due to Bai and Ge, we prove that a boundary value problem has ... 
THE EXISTENCE OF POSITIVE SOLUTIONS FOR A SEMIPOSITONE SECONDORDER mPOINT BOUNDARY VALUE PROBLEM
(DYNAMIC PUBLISHERS, INC, 2015)In this paper, we study the existence of positive solutions to boundary value problem {u '' + lambda f(t,u)=0, t is an element of(0,1); u(0)=Sigma(m2)(i1) alpha (i)u(xi(i)), u'(1) = Sigma (m2)(i=1) beta(i) ... 
Existence of positive solutions for nonlinear multipoint pLaplacian dynamic equations on time scales
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEYTUBITAK, ATATURK BULVARI NO 221, KAVAKLIDERE, TR06100 ANKARA, TURKEY, 2020)In this paper, we investigate the existence of positive solutions for nonlinear multipoint boundary value problems for pLaplacian dynamic equations on time scales with the delta derivative of the nonlinear term. Sufficient ... 
EXISTENCE OF POSITIVE SOLUTIONS FOR pLAPLACIAN AN mPOINT BOUNDARY VALUE PROBLEM INVOLVING THE DERIVATIVE ON TIME SCALES
(TEXAS STATE UNIV, 601 UNIVERSTITY DRIVE, SAN MARCOS, TX 78666 USA, 2014)We are interested in the existence of positive solutions for the pLaplacian dynamic equation on time scales (phi(P)(u(Delta)(t)))(V) a(t)f (t, u Delta(t), (t)) = 0, t is an element of (0,T)(T), subject to the multipoint ... 
Existence of positive solutions to multipoint third order problems with sign changing nonlinearities
(UNIV TARTU PRESS, 1 W STRUVE ST, TARTU, 50091, ESTONIA, 2020)In this paper, the authors examine the existence of positive solutions to a thirdorder boundary value problem having a sign changing nonlinearity. The proof makes use of fixed point index theory. An example is included ... 
EXISTENCE OF THREE POSITIVE SOLUTIONS FOR AN mPOINT BOUNDARYVALUE PROBLEM ON TIME SCALES
(TEXAS STATE UNIV, 601 UNIVERSTITY DRIVE, SAN MARCOS, TX 78666 USA, 2013)We study an mpoint boundaryvalue problem on times scales. By using a fixed point theorem, we prove the existence of at least three positive solutions, under suitable growth conditions imposed on the nonlinear term. An ... 
Existence results for a class of boundary value problems for fractional differential equations
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEYTUBITAKATATURK BULVARI NO 221, KAVAKLIDERE, TR06100 ANKARA, TURKEY, 2021)By application of some fixed point theorems, that is, the Banach fixed point theorem, Schaefer's and the LeraySchauder fixed point theorem, we establish new existence results of solutions to boundary value problems of ... 
An introduction to nonsmooth convex analysis via multiplicative derivative
(TAYLOR & FRANCIS LTD, 24 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND, 2019)In this study, *directional derivative and *subgradient are defined using the multiplicative derivative, making a new contribution to nonNewtonian calculus for use in nonsmooth analysis. As for directional derivative ... 
A Modified Multiple Shooting Algorithm for Parameter Estimation in ODEs Using Adjoint Sensitivity Analysis
(ELSEVIER SCIENCE INCSTE 800, 230 PARK AVE, NEW YORK, NY 10169, 2021)To increase the predictive power of a model, one needs to estimate its unknown parameters. Almost all parameter estimation techniques in ordinary differential equation models suffer from either a small convergence region ... 
Multiple positive solutions of nonlinear mpoint dynamic equations for pLaplacian on time scales
(SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEYTUBITAK, ATATURK BULVARI NO 221, KAVAKLIDERE, TR06100 ANKARA, TURKEY, 2016)In this paper, we study the existence of positive solutions of a nonlinear mpoint pLaplacian dynamic equation (phi(p) (x(Delta)(t)))(del) w(t)f (t,x(t), x(Delta)(t)) = 0, t(1) < m1 X(ti)  B0 (Sigma m1 i=2 a(i)x(Delta)(t(i))) ... 
A NEW APPROACH FOR NUMERICAL SOLUTION OF LINEAR AND NONLINEAR SYSTEMS
(KOREAN SOC COMPUTATIONAL & APPLIED MATHEMATICS & KOREAN SIGCAM, 2017)In this study, Taylor matrix algorithm is designed for the approximate solution of linear and nonlinear differential equation systems. The algorithm is essentially based on the expansion of the functions in differential ... 
A New Semisupervised Classification Method Based on Mixture Model Clustering for Classification of Multispectral Data
(SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2018)A new method for semisupervised classification of remotelysensed multispectral image data is developed in this study. It consists of unsupervisedclustering for data labelling and supervisedclassification of clusters ... 
Normal Mixture ModelBased Clustering of Data Using Genetic Algorithm
(SPRINGER INTERNATIONAL PUBLISHING AG, 2020)In this study, a new algorithm was developed for clustering multivariate big data. Normal mixture distributions are used to determine the partitions of variables. Normal mixture models obtained from the partitions of variables ... 
A numerical investigation of the GRLW equation using lumped Galerkin approach with cubic Bspline
(Springer, 2016)In this work, we construct the lumped Galerkin approach based on cubic Bsplines to obtain the numerical solution of the generalized regularized long wave equation. Applying the von Neumann approximation, it is shown that ...