für 45.80€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In der Arbeit ` Quasi-Interpolanten zu genuinen Baskakov-Durrmeyer-Typ Operatoren` untersuchen wir Approximationsverfahren für reellwertige Funktionen auf kompakten Intervallen sowie auf dem Intervall [0,8). Ausgangspunkt ist dabei ein Ansatz aus Baskakov [1957], wodurch wir eine Klasse von positiven Gewichtsfunktionen erhalten. Mit Hilfe dieser Gewichtsfunktionen lassen sich positive lineare Operatoren konstruieren. In Baskakov [1957] wurden hierdurch Operatoren mit Punktauswertungen an äquidistanten Stützstellen der zu approximierenden Funktionen gebildet. Als Spezialfälle ergeben sich die klassischen Operatoren von Bernstein, Szász-Mirakjan und Baskakov. Um auch L p - integrierbare Funktionen zu approximieren, wurde in Durrmeyer [1967], und unabhängig davon in Lupa¿s [1972], für die Bernstein Operatoren die sogenannte Durrmeyer Variante eingeführt, bei der die Punktauswertungen durch Integrale der gewichteten Funktion ersetzt werden. Dieser Ansatz lässt sich auf alle in Baskakov [1957] konstruierten Operatoren erweitern. In dieser Arbeit betrachten wir Operatoren, die aus einer Kombination der klassischen Operatoren sowie deren Durrmeyer Variante entstehen. Dabei verwenden wir Punktauswertungen an den Intervallrandpunkten und ansonsten Integrale der gewichteten Funktion, wobei die Gewichtsfunktionen gegenüber der Durrmeyer Variante leicht verschoben sind. Diese Operatoren bezeichnen wir als genuine Baskakov-Durrmeyer-Typ Operatoren. Prinzipiell lassen sich diese Operatoren auch auf L p -integrierbare Funktionen anwenden, deren Grenzwerte an den Randpunkten existieren. Da aber die Operatornorm bezüglich der L p -Normen in diesem Fall unbeschränkt ist, behandeln wir in dieser Arbeit die Approximation stetiger Funktionen. ····· 10361107873
für 45.80€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, we develop a goal-oriented adaptive method to improve the efficiency of tropical cyclone prediction. The term goal-oriented refers to a common desire in numerical modeling that a certain physical quantity of the solution, such as point-values, is of special interest and should be determined with high precision. In this case, discrete models can be tailored with respect to this specific request (e.g. by local grid-refinement) which allows for very efficient models. We investigate an idealized scenario of two closely located, interacting tropical cyclones. During the first hours of development, their mutual influence on the storm structure and position is strong. Since small perturbations can have strong impact on the storm positions at later times, this scenario is an excellent benchmark problem for adaptive methods. We use a discretization based on a spacetime finite element method and present a new a posteriori error estimator for the error in user-defined functionals. We introduce several functionals defined as localized integrals of vorticity and kinetic energy that are strongly correlated to the storm positions. We discuss the perturbation sensitivity of these functionals, and estimate the corresponding error of approximate solutions. Using goal-oriented adaptation of the space and time discretization, a significant efficiency improvement in storm track prediction can be achieved for this scenario. ····· 10361107551
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book contains perceptions and practices of mathematics teachers in Nepal. It describes different perceptions of mathematics teachers and their practices. This presents model practice to address critical thinking not only in mathematics but also in other subjects. The model like critical killer versus critical filler can be used in any part of the world. This book describes about different theories like Knowledge constitutive interest, activity theory and theory of expansive learning and the reflective judgment model. This book presents a model for future directions in addressing critical thinking in mathematics classroom as a vision in the field. ····· 10361102957
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Pharmacokinetics is the study of the kinetics of absorption, distribution, metabolism and excretion of drugs and their pharmacological, therapeutic or toxic response in animals and man . In brief, pharmacokinetics is concerned with quantitatively accounting for the whereabouts of a drug after it has been introduced in the body. The analysis is carried out throughout the entire time course for the drug in the body. The aim of this work is to introduce new mathematical methods of solving biological problems that will help in promoting the new technologies in medical and healthcare areas and also propose new possibilities in nanobiotechnologies. ····· 10361102935
····· lezzter Preis 68.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The study of quantum games is fairly new, arising from a seminal paper of David A. Meyer. In the following decade, quantum game theory has gained a considerable interest. This book presents a mathematical formalism for quantum games generalizing the classical notion of mixing strategies. It begins with an exposition of the fundamentals of quantum information theory and proceeds to introduce games played under `quantum mediated communication`, that is, the `quantum` internet. The particular focus is on two and three player games where each player has precisely two pure strategic choices. The main result of this work is the co-ordinatization of the `quantum` payoff functions by either the quaternions or octonions in order to obtain computationally friendly versions of these functions. This computational capability is then exploited to analyze and potentially classify the Nash equilibria in the quantized games. This book is intended for students and scholars who are interested in quantum information and game theory. Although the book is sufficiently self-contained, it is assumed that the reader has already had some exposure to linear algebra and quantum information theory. ····· 10361102783
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Computer vision, unlike humans, still has not fully acquired the ability to categorise a person`s age group from an image of the person`s face. Successful gender and age classification could be used to boot the performance of face recognition system. Fuzzy models have been used and analysed in this work to achieve the desired results. The concept of fuzzy lattice neural model is introduced and is applied to classify the age group of a person from the gray scale facial image. Next, the fuzzy equivalence relation model is constructed and is used to classify the age group of a person. Then, the fuzzy lattice neural model is applied to segment an aerial gray scale image. Finally, fuzzy lattice neural model is compared with other models like fuzzy equivalence relation model, Kohenen`s clustering neural model that are used for classification. The hybridization of the technologies is demonstrated on architectures such as Neuro-fuzzy systems. This book should be of interest to researchers and technologists desirous of applying FLN technology to their respective fields of work. ····· 10361102757
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book, having eight chapters, offers one semester course (with four credit hours per week) on diverse topics usually included in the mathematics syllabus of the first year Engineering class of most Universities. The first chapter deals with the introductory topics in 2-dimensional coordinate geometry: straight lines and conic sections. A brief discussion of theory of equations is given in the second chapter. Vectors (mostly in 3-dimensional space) are introduced in the third chapter. Vector algebra and products of vectors are included. The next chapter deals with the matrices and determinants. Matrix algebra including multiplication of matrices is given. Further concepts such as rank of a matrix etc. are avoided. A comprehensive course on convergence of infinite series forms the subject mater of Chapter 5. Presuming that the students already had a first course on calculus only main concepts and results of differentiation and integration of functions of single variable have been given in the chapter 6. Power series, Maclaurin`s and Taylor`s expansions are explained in detail in the same chapter. ····· 10361102581
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present book offers a first course on Complex Analysis. It deals with the differential and integral properties of functions of a single complex variable. It includes conformal transformations and applications of complex analysis to potential theory and flow problems.The subject matter is presented here in five chapters. It starts with a historical note for the introduction and subsequent development of the subject right from the initial stage to the present modern complex analysis. The first chapter includes the introduction of complex numbers, their geometric representation, De Moivre`s theorem, roots and logarithm of a complex number and real and imaginary parts of a complex function.The concepts of differential calculus for functions of a complex variable are outlined in the second chapter. It gives the concept of limit and differentiability of a function. Analytic properties and Cauchy-Riemann equations form the main subject matter of this chapter. The third chapter deals with the integration of functions of a complex variable. ····· 10361102512
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Time-delay systems consist of delay differential equations that combine the continuous aspect of differential equations and the sample features of difference equations. These equations have advanced and retarded, fixed or flexible delays. Their origin is imputed to Condorcet in 1767, in his astronomical three-body problem. This approach has been extensively studied in various scientific studies in Physics, Engineering, Chemistry, Biology. Early, the interest for such a modeling approach also appears in Economics. In the 1930`s, Kalecki presented a delay business cycle model and Tinbergen proposed a delay system for the shipbuilding sector. This book introduces to the main concepts and methods for the time-delay systems with application to economics. A variety of advanced resolution methods is presented together with numerical examples: forward integration by steps, Lambert W function, mathematical transforms and circuit analysis. Economic models with delay from the standard economic theory are studied: decision model, business cycle and growth models. The computations have been carried out by using the softwares MATHEMATICA 7 and MATLAB 2008, and their specialized packages. ····· 10361102501
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book presents some models for spatially-structured predator-prey populations. It addresses the issues of spatial structure and predator-prey interactions, and studies optimal harvesting for the populations. These issues are very important in the development of prudent management for the exploitations of natural resources. The book explores two common features of biological populations simultaneously: biological interactions and spatial structure. It includes relevant features that occur in most commercial marine populations, that is, predator-prey interactions, and takes into account the existence of the exchange of individuals between subpopulations, which is a common phenomenon in nature. The existence of this phenomenon is studied via metapopulation approach. Some mathematical models of commercially exploited populations are then developed and the question of how to harvest a predator-prey metapopulation is addressed. Optimal harvesting strategies are found using dynamic programming and Lagrange multipliers. Rules about harvesting source/sink subpopulations, more/less vulnerable prey subpopulations and more/less efficient predator subpopulations are explored. ····· 10361102490
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The first chapter deals with the transformations (more precisely translation, reflection, rotation, dilation) in a plane while similar transformations in a 3-dimensional Euclidean space are dealt with in the second chapter. Non-linear, affine and locally affine transformations and rigid motions are included. Isometries are introduced in the third chapter. Chapter 4 offers a detailed account of product transformations which form an algebraic group. Infinitesimal transformations are introduced in Chapter 5. Cases when they may form a motion (preserving distances), translation (displacing each point through a fixed distance), conformal motion (preserving the angle between two directions), homothetic motion (a special case of conformal motion) and geodesic preserving transformations (called projective motions) are dealt therein. The last chapter defines a projective space in general and projective transformations: both singular and non-singular are studied. The chapter concludes with the projective transformations of a projective space onto itself, called collineations. Certain properties of collineations are studied. ····· 10361102480
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book presents an introduction to mathematics starting right from the natural numbers. Covering a vast range of topics in Arithmetic, Algebra, Trigonometry, Coordinate Geometry, Theory of Equations, Sets, Matrices and Determinants, Solid Geometry, Calculus (both Differential and Integral), Analysis the book concludes with a chapter on Complex Numbers. Altogether, it has eleven chapters. Generally, the proofs are avoided but many results especially in Algebra, Trigonometry, Coordinate Geometry and Complex Numbers have been established. Fundamental theorems of Arithmetic, Algebra and Calculus are also given. The book is not intended to be a comprehensive text rather it offers a crash course of basic mathematics to the beginners and as a reference book to the advanced learners. Infinity ( ) is generally mistaken as a number or the logarithm of a negative number is just undefined concept at least to the beginners. These misconceptions are removed here. Almost all the authors claim r2 as the area of a circle of radius r (which, indeed, is zero) for circle having length (i.e. its circumference 2 r) only and is supposed to be of width zero. None takes pains to call r2 as the area of a circular (plane) region of radius r. ····· 10361102357
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The subject of univalent functions is an important area within the venerable field of complex analysis. In this subject one often considers subclasses of the class of all analytic and univalent functions defined on the unit disk in the complex plane that are normalized. A more challenging problem is to determine a region of variability for a given subclass. Region of variability problems typically give more exact information about a family of univalent functions than classical growth distortion and rotation theorems. This book deals with a number of region of variability problems defined on several subclasses of univalent functions. The region of variability and subclasses considered in this book are of current interest of other researchers. The growth estimate and the sharp Bloch semi-norm and the pre-Schwarzian norm are obtained in many cases. In addition, the pictorial illustrations concerning the region of variability using Mathematica make the reading of this book an enjoyable one. Some of the investigations presented in the book could lead to new results in different area of research in function theory. ····· 10361102329
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Nonpolynomial Spline Methods (NPSMs) are presented for solving single and system of boundary value problems (BVPs) of orders two, four, six and an 2mth order BVPs respectively. Also, the numerical solution of singular second order BVPs is considered. Optimal order approximations to the solutions of these boundary value problems are obtained. The matrix properties of these BVPs, arising from the discretization of systems of BVPs by NPSMs, are discussed. Sufficient conditions for the optimal convergence for NPSMs are obtained. Also, NPSMs generalize other recent finite difference methods and polynomial spline methods through arbitrary choices of some defined parameters in these methods. Numerical results demonstrated by the NPSMs are shown to produce smaller approximation errors and the superiority of our methods over other recent methods such as finite difference methods, polynomial spline methods and spline collocation methods. These new proposed methods are very encouraging in dealing with boundary value problems. ····· 10361102325
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The Laplacian matrix of a graph and its eigenvalues can be used in several areas of mathematical research and have a physical interpretation in various physical and chemical theories. The related matrix, the adjacency matrix of a graph and its eigenvalues were much more investigated in the past than the Laplacian matrix. However in my opinion the Laplacian spectrum is much more natural and more important than the adjacency matrix spectrum. We have used the standard terminology of graph theory, as it is introduced in most text books on the theory of graphs. We have studied the graph structure related to the second smallest and the largest Laplacian eigenvalues. ····· 10361102278
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray We continue our investigations of the scale of a quasi-uniform space, which we had started in an earlier article. We distinguish between the left-sided scale and the two-sided scale of a quasi-uniform space. While the behavior of the two-sided scale of a quasi-uniform space X shows similarities with the usual hyperspace of X equipped with its Hausdorff quasi-uniformity, the left-handed scale generalizes the quasi-uniform multifunction space of X into itself.For instance the two-sided scale of any totally bounded quasi-uniform space X is totally bounded, while total boundedness of the left-sided scale of a quasi-uniform space X implies that X is finite or indiscrete. Either construction of the scale is based on the idea of the prefilter space of a quasi-uniform space. Prefilter spaces of quasi-uniform spaces are shown to be bicomplete. It follows that both the left-sided and the two-sided scale of a quasi-uniform space are bicomplete. Indeed these scales can be used to construct the bicompletion of the T0-reflection of the Hausdorff quasi-uniformity of a quasi-uniform space. ····· 10361102229
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book has three chapters and an Appendix on different methods to calculate approximate areas of plain regions enclosed by curves. Tutorials, Tests and Examination Papers of different Universities where the author taught the course at the faculties of Engineering and Business Studies are provided. A short bibliography of books on the subject and alphabetical index of the topics covered are given in the end.The first chapter accounts the different methods for numerical solutions of ordinary differential equations. Picard`s, Taylor`s, Euler`s, Runge-Kutta, Milne`s and Adams-Bashforth`s methods are given. The problems of curve fittings and spline fittings are explained in the second chapter. The Gaussian method of least squares` for the curve of best fit` is included. The concepts of Linear Programming are studied in the third chapter. Solution(s) of linear relations obtained analytically are also discussed by graphical methods. General problems of Linear Programming (LPP), canonical and standard forms of LPP and Simplex methods are discussed. Trapezoidal rule and Simpson`s rules for approximate areas of plain regions are included in the Appendix ····· 10361102157
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Various (putative) generalisations of the Contraction Mapping Theorem in metric space theory in the literature are considered. In particular, generalisations due to Kannan and Suzuki are studied, as is a result of Merryfield, Rothschild and Stein with interesting links to Ramsey theory. The main subsequent business is a question of Stein about when there is a finite family of maps of the metric space, at least one of which contracts any particular pair of points: does some composition of members of the family have to have a unique fixed point The answer is shown to be `yes` in the special case of two commuting continuous maps of the metric space, but to be `no` in general, by the counterexample of Austin based on combinatorics on words. Thus in complete generality the Generalised Banach Contraction Conjecture is proven false. Relevant background on metric spaces is also developed. ····· 10361102147
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is concerned primarily with an especially simple class of exact solutions of the boundary layer equations. Similar flows exist only in certain flows in which the velocity and enthalpy profiles at different positions on the body have a similar shape. The similarity technique essentially consists of converting the partial differential equations to ordinary differential equations. The reduction of the system to a set of ordinary differential equations can be achieved by transforming the dependent and independent variables to suitable non-dimensional dependent and independent variables called the similarity variables with the aid of transformations known as similarity transformations. Qualitative properties of solutions of differential equations assume importance in the absence of closed form solutions. In case the solutions are not expressible in terms of usual known functions, an analysis of the equations is necessary to find the facets of the solutions. ····· 10361102013
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The necessity of writing this book arose when I had to teach this course to Mechanical Engineering III year students of the PNG University of Technology, Lae. Since no consistent literature on the subject was available here, I was advised to write a text to cover the syllabus. This need, I realized earlier too, when I was Vice-Chancellor, Avadh University, Faizabad (India) in 1991 and I had to assist my daughter to learn Laplace Transforms. I looked for a suitable text but one was not available. The present book comprises seven chapters of which the first one gives a brief discussion of the essential tools for solving Ordinary Differential Equations. The next three chapters describe in detail the techniques of Laplace Transforms, Inverse Laplace Transforms and their Applications to solving Differential Equations. Fourier series have been discussed in the fifth chapter, while a short discussion of Partial Differential Equations is given in the sixth chapter PDE`s of interest to Engineering students have been included. The last chapter offers a detailed discussion of Convergence of Infinite Series and Infinite Products. ····· 10361102002
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The present book, having twelve chapters, offers a first course on classical mechanics suitable for graduate and college students. It comprises of three segments: vectors, statics and dynamics of a particle. It begins with an introduction to vectors and deals with their dot` and cross` products in the first chapter. The next four chapters deal with statics: resultant of forces, moment of a force, forces in equilibrium and centre of gravity are discussed. Different types of forces: weight, normal reaction, friction, tension in string (both elastics and inelastic) and thrust in a light rod are considered. The last segment deals with dynamics of a particle. Motion of a particle in a straight line and in a plane, simple harmonic motion, and projectile are explained in the Chapters 6 9. Work done by a force, its rate of working (power) and the capacity of an engine to do work (energy) are included in the Chapter 10. The concepts of momentum and impact of a particle are explained in the 11th chapter whereas the relative motion is discussed in the last chapter. Chapters are divided into Sections, which are numbered chapter-wise. ····· 10361101980
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dynamical properties and synchronization of chaotic and hyperchaotic systems involving real variables have been studied and investigated in applied sciences over the last 30 years. There is, however, a wide variety of the physical problems which, from mathematical point of view, can be studied more conveniently by using complex variables. The dynamics of these systems is rich and complex. The aim of this monograph is to introduce and analyze some chaotic and hyperchaotic complex nonlinear systems. The basic dynamical properties of these systems are presented. The control problem of hyperchaotic attractors of these systems is also stated. Several types of synchronization of chaotic and hyperchaotic complex nonlinear dynamical systems are investigated in this monograph. This monograph is mainly addressed to graduate students and senior researchers interested in the study of chaotic and hyperchaotic complex (or real) nonlinear dynamical systems. ····· 10361101896
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The study of chaotic complex nonlinear systems has become a subject of great interest during the last 30 years. The aim of this thesis is to introduce and study some chaotic complex nonlinear dynamical systems, for example, complex Chen and Lü systems . There are interesting cases of dynamical systems, where the main variables participating in the dynamics are complex, for example, when amplitudes of electromagnetic fields of laser systems are involved. Another example is when chaos synchronization is used for communications, where doubling the number of variables may be used to increase the content and security of the transmitted information. This monograph is mainly addressed to graduate students and senior researchers interested in the study of complex nonlinear systems. ····· 10361101857
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this paper a regularized spectral estimation formula and a regularized iterative algorithm for band-limited extrapolation are presented. The ill-posedness of the problem is taken into account. First a Fredholm equation is regularized. Then it is transformed to a differential equation in the case where the time interval is {bf R}. A fast algorithm to solve the differential equation by the finite differences is given and a regularized spectral estimation formula is obtained. Then a regularized iterative extrapolation algorithm is introduced and compared with the Papoulis and Gerchberg algorithm. A time-frequency regularized extrapolation algorithm is presented in the two-dimensional case. The Gibbs phenomenon is analyzed. Then the time-frequency regularized extrapolation algorithm is applied to image restoration and compared with other algorithms. ····· 10361101835· 1 · ::::: · 8 ·· 9 ·· 10 ·· 11 ·· 12 ·· 13 ·· 14 · ::::: · 29 ·
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