WorldCat Identities

Neittaanmäki, P. (Pekka)

Overview
Works: 258 works in 665 publications in 1 language and 9,017 library holdings
Genres: Conference papers and proceedings 
Roles: Author, Editor, Other, Honoree
Publication Timeline
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Most widely held works by P Neittaanmäki
Finite element methods : superconvergence, post-processing, and a posteriori estimates by M Křížek( )

14 editions published between 1997 and 2017 in English and held by 769 WorldCat member libraries worldwide

Based on the proceedings of the first conference on superconvergence held recently at the University of Jyvaskyla, Finland, this unique resource presents reviewed papers focusing on superconvergence phenomena in the finite element method. Helpfully complemented with more than 2150 bibliographic citations, equations, and drawings, this excellent reference is required reading for numerical analysts, applied mathematicians, software developers, researchers in computational mathematics, and graduate-level students in these disciplines
Spline and spline wavelet methods with applications to signal and image processing by Amir Averbuch( )

24 editions published between 2014 and 2016 in English and held by 599 WorldCat member libraries worldwide

This book presents various contributions of splines to signal and image processing from a unified perspective that is based on the Zak transform (ZT). It expands the methodology from periodic splines, which were presented in the first volume, to non-periodic splines. Together, these books provide a universal toolbox accompanied by MATLAB software for manipulating polynomial and discrete splines, spline-based wavelets, wavelet packets and wavelet frames for signal/ image processing applications. In this volume, we see that the ZT provides an integral representation of discrete and polynomial splines, which, to some extent, is similar to Fourier integral. The authors explore elements of spline theory and design, and consider different types of polynomial and discrete splines. They describe applications of spline-based wavelets to data compression. These splines are useful for real-time signal processing and, in particular, real-time wavelet and frame transforms. Further topics addressed in this volume include: "global" splines, such as interpolating, self-dual and smoothing, whose supports are infinite; the compactly supported quasi-interpolating and smoothing splines including quasi-interpolating splines on non-uniform grids; and cubic Hermite splines as a source for the design of multiwavelets and multiwavelet frames. Readers from various disciplines including engineering, computer science and mathematical information technology will find the descriptions of algorithms, applications and software in this book especially useful
Optimization of elliptic systems : theory and applications by P Neittaanmäki( )

19 editions published between 2005 and 2011 in English and held by 584 WorldCat member libraries worldwide

This monograph provides a comprehensive and accessible introduction to the optimization of elliptic systems. This area of mathematical research, which has many important application in science and technology, has experienced an impressive development during the last two decades. This monograph aims to address some of the pressing unsolved questions in the field. The exposition concentrates along two main directions: the optimal control of linear and nonlinear elliptic equations, and problems involving unknown and/or variable domains. Throughout this monograph, the authors elucidate connections between seemingly different types of problems. One basic feature is to relax the needed regularity assumptions as much as possible in order to include larger classes of possible applications. The book is organized into six chapters that give a gradual and accessible presentation of the material, and a special effort is made to present numerous examples. This monograph is addressed primarily to mathematics graduate students and researchers, however much of this material will also prove useful for scientists from physics, mechanics, and engineering
Optimal control of nonlinear parabolic systems : theory, algorithms, and applications by P Neittaanmäki( )

12 editions published in 1994 in English and held by 569 WorldCat member libraries worldwide

Variational and quasi-variational inequalities in mechanics by A. S Kravchuk( )

18 editions published in 2007 in English and Undetermined and held by 457 WorldCat member libraries worldwide

"The essential aim of the present book is to consider a wide set of problems arising in the mathematical modelling of mechanical systems under unilateral constraints. In these investigations elastic and non-elastic deformation, friction and adhesion phenomena are taken into account. All the necessary mathematical tools are given: local boundary value problem formulations, construction of variational equations and inequalities, and the transition to minimization problems, existence and uniqueness theorems, and variational transformations (Friedrichs and Young-Fenchel-Moreau) to dual and saddle-point search problems." "Important new results concern contact problems with friction. The Coulomb friction law and some others are considered, in which relative sliding velocities appear. The corresponding quasi-variational inequality is constructed, as well as the appropriate iterative method for its solution. Outlines of the variational approach to non-stationary and dissipative systems and to the construction of the governing equations are also given." "Examples of analytical and numerical solutions are presented. Numerical solutions were obtained with the finite element and bound element methods, including new 3D problems solutions."--Jacket
Design and use of serious games by Marja Kankaanranta( )

17 editions published between 2008 and 2010 in English and held by 446 WorldCat member libraries worldwide

During the last few years, a new area of creative media industry, namely Serious Games, has started to emerge around the world. In this book, serious games are understood as games which aim at providing an engaging, self-reinforcing context in which to motivate and educate the players
Partial differential equations : modeling and numerical simulation by R Glowinski( )

15 editions published in 2008 in English and held by 433 WorldCat member libraries worldwide

This book is dedicated to Olivier Pironneau. For more than 250 years partial differential equations have been clearly the most important tool available to mankind in order to understand a large variety of phenomena, natural at first and then those originating from human activity and technological development. Mechanics, physics and their engineering applications were the first to benefit from the impact of partial differential equations on modeling and design, but a little less than a century ago the Schrödinger equation was the key opening the door to the application of partial differential equations to quantum chemistry, for small atomic and molecular systems at first, but then for systems of fast growing complexity. Mathematical modeling methods based on partial differential equations form an important part of contemporary science and are widely used in engineering and scientific applications. In this book several experts in this field present their latest results and discuss trends in the numerical analysis of partial differential equations. The first part is devoted to discontinuous Galerkin and mixed finite element methods, both methodologies of fast growing popularity. They are applied to a variety of linear and nonlinear problems, including the Stokes problem from fluid mechanics and fully nonlinear elliptic equations of the Monge-Ampère type. Numerical methods for linear and nonlinear hyperbolic problems are discussed in the second part. The third part is concerned with domain decomposition methods, with applications to scattering problems for wave models and to electronic structure computations. The next part is devoted to the numerical simulation of problems in fluid mechanics that involve free surfaces and moving boundaries. The finite difference solution of a problem from spectral geometry has also been included in this part. Inverse problems are known to be efficient models used in geology, medicine, mechanics and many other natural sciences. New results in this field are presented in the fifth part. The final part of the book is addressed to another rapidly developing area in applied mathematics, namely, financial mathematics. The reader will find in this final part of the volume, recent results concerning the simulation of finance related processes modeled by parabolic variational inequalities
Structural optimization with uncertainties by Nikolaĭ Vladimirovich Banichuk( )

14 editions published between 2009 and 2010 in English and held by 426 WorldCat member libraries worldwide

"This monograph is devoted to the exposition of new ways of formulating problems of structural optimization with incomplete information and techniques of solution. Research results concerning the optimum shape and structural properties of the bodies subjected to external loadings are recapitulated. Problems of optimal design with incomplete information, accounting for the interaction between the structure and its environment, properties of materials, existence of initial damages and damage accumulation are studied. This volume treats overcoming the corresponding mathematical difficulties caused by raising local functionals. Most of the book is devoted to the minimax approach using worst case scenarios, i.e. the so-called guaranteed approach. However, the probabilistic approach, that does not guarantee the result, is also described in the monograph, because it gives more "optimistic" results. Also, the mixed probabilistic guaranteed approach is discussed and applied for the solution of structural optimization problems with uncertainties."--Publisher's website
Accuracy verification methods : theory and algorithms by Olli Mali( )

11 editions published in 2014 in English and held by 394 WorldCat member libraries worldwide

The importance of accuracy verification methods was understood at the very beginning of the development of numerical analysis. Recent decades have seen a rapid growth of results related to adaptive numerical methods and a posteriori estimates. However, in this important area there often exists a noticeable gap between mathematicians creating the theory and researchers developing applied algorithms that could be used in engineering and scientific computations for guaranteed and efficient error control.? The goals of the book are to (1) give a transparent explanation of the underlying mathematical theory in a style accessible not only to advanced numerical analysts but also to engineers and students; (2) present detailed step-by-step algorithms that follow from a theory; (3) discuss their advantages and drawbacks, areas of applicability, give recommendations and examples
Finite element methods : fifty years of the Courant element by Finite element methods( Book )

19 editions published between 1994 and 2016 in English and held by 313 WorldCat member libraries worldwide

These proceedings originated from a conference commemorating the 50th anniversary of the publication of Richard Courant's seminal paper, Variational Methods for Problems of Equilibrium and Vibration. These papers address fundamental questions in numerical analysis and the special problems that occur in applying the finite element method to various fields of science and engineering
Reliable methods for computer simulation : error control and a posteriori estimates by P Neittaanmäki( )

11 editions published in 2004 in English and held by 311 WorldCat member libraries worldwide

Recent decades have seen a very rapid success in developing numerical methods based on explicit control over approximation errors. It may be said that nowadays a new direction is forming in numerical analysis, the main goal of which is to develop methods ofreliable computations. In general, a reliable numerical method must solve two basic problems: (a) generate a sequence of approximations that converges to a solution and (b) verify the accuracy of these approximations. A computer code for such a method must consist of two respective blocks: solver and checker. In this book, we are chiefly concerned with the problem (b) and try to present the main approaches developed for a posteriori error estimation in various problems. The authors try to retain a rigorous mathematical style, however, proofs are constructive whenever possible and additional mathematical knowledge is presented when necessary. The book contains a number of new mathematical results and lists a posteriori error estimation methods that have been developed in the very recent time. computable bounds of approximation errors checking algorithms iteration processes finite element methods elliptic type problems nonlinear variational problems variational inequalities
Cyber security : analytics, technology and automation by Martti Lehto( )

11 editions published in 2015 in English and held by 290 WorldCat member libraries worldwide

Over the last two decades, the Internet and more broadly cyberspace has had a tremendous impact on all parts of society. Governments across the world have started to develop cyber security strategies and to consider cyberspace as an increasingly important international issue. The book, in addition to the cyber threats and technology, processes cyber security from many sides as a social phenomenon and how the implementation of the cyber security strategy is carried out. The book gives a profound idea of the most spoken phenomenon of this time. The book is suitable for a wide-ranging audience from graduate to professionals/practitioners and researchers. Relevant disciplines for the book are Telecommunications / Network security, Applied mathematics / Data analysis, Mobile systems / Security, Engineering / Security of critical infrastructure and Military science / Security
Resonant tunneling : quantum waveguides of variable cross-section, asymptotics, numerics, and applications by Lev Baskin( )

8 editions published in 2015 in English and held by 273 WorldCat member libraries worldwide

This volume studies electron resonant tunneling in two- and three-dimensional quantum waveguides of variable cross-sections in the time-independent approach. Mathematical models are suggested for the resonant tunneling and develop asymptotic and numerical approaches for investigating the models. Also, schemes are presented for several electronics devices based on the phenomenon of resonant tunneling. Devices based on the phenomenon of electron resonant tunneling are widely used in electronics. Efforts are directed towards refining properties of resonance structures. There are prospects for building new nanosize electronics elements based on quantum dot systems. However, the role of resonance structure can also be given to a quantum wire of variable cross-section. Instead of an "electrode - quantum dot - electrode" system, one can use a quantum wire with two narrows. A waveguide narrow is an effective potential barrier for longitudinal electron motion along a waveguide. The part of the waveguide between two narrows becomes a "resonator", where electron resonant tunneling can occur. This phenomenon consists in the fact that, for an electron with energy E, the probability T(E) to pass from one part of the waveguide to the other part through the resonator has a sharp peak at E = Eres, where Eres denotes a "resonant" energy. Such quantum resonators can find applications as elements of nanoelectronics devices and provide some advantages in regard to operation properties and production technology. The book is addressed to mathematicians, physicists, and engineers interested in waveguide theory and its applications in electronics
Numerical methods for free boundary problems : proceedings of a conference held at the Department of Mathematics, University of Jyväskylä, Finland, July 23-27, 1990 by Conference on Numerical Methods for Free Boundary Problems( Book )

15 editions published in 1991 in English and held by 250 WorldCat member libraries worldwide

About 80 participants from 16 countries attended the Conference on Numerical Methods for Free Boundary Problems, held at the University of Jyviiskylii, Finland, July 23-27, 1990. The main purpose of this conference was to provide up-to-date information on important directions of research in the field of free boundary problems and their numerical solutions. The contributions contained in this volume cover the lectures given in the conference. The invited lectures were given by H.W. Alt, V. Barbu, K-H. Hoffmann, H. Mittelmann and V. Rivkind. In his lecture H.W. Alt considered a mathematical model and existence theory for non-isothermal phase separations in binary systems. The lecture of V. Barbu was on the approximate solvability of the inverse one phase Stefan problem. K-H. Hoff mann gave an up-to-date survey of several directions in free boundary problems and listed several applications, but the material of his lecture is not included in this proceedings. H.D. Mittelmann handled the stability of thermo capillary convection in float-zone crystal growth. V. Rivkind considered numerical methods for solving coupled Navier-Stokes and Stefan equations. Besides of those invited lectures mentioned above there were 37 contributed papers presented. We shall briefly outline the topics of the contributed papers: Stefan like problems. Modelling, existence and uniqueness
Mathematical modeling and optimization of complex structures by P Neittaanmäki( )

11 editions published between 2015 and 2016 in English and held by 248 WorldCat member libraries worldwide

This volume contains selected papers in three closely related areas: mathematical modeling in mechanics, numerical analysis, and optimization methods. The papers are based upon talks presented on the International Conference for Mathematical Modeling and Optimization in Mechanics, held in Jyväskylä, Finland, March 6-7, 2014 dedicated to Prof. N. Banichuk on the occasion of his 70th birthday. The articles are written by well-known scientists working in computational mechanics and in optimization of complicated technical models. Also, the volume contains papers discussing the historical development, the state of the art, new ideas, and open problems arising in modern continuum mechanics and applied optimization problems. Several papers are concerned with mathematical problems in numerical analysis, which are also closely related to important mechanical models. The main topics treated include: * Computer simulation methods in mechanics, physics, and biology; * Variational problems and methods; minimization algorithms; * Optimal control problems with distributed and discrete control; * Shape optimization and shape design problems in science and engineering; * Sensitivity analysis and parameters optimization of complex systems
Mathematical models in electrical circuits : theory and applications by C. A Marinov( Book )

13 editions published in 1991 in English and held by 243 WorldCat member libraries worldwide

One service mathematics has rendered the 'Et moi ... si favait su comment en revenir, je n'y seTais point alle.' human race. It has put common sense back Jules Verne where it belongs. on the topmost shelf next to the dusty canister labelled 'discarded n- sense', The series is divergent; therefore we may be Eric T. Bell able to do something with it. O. Heaviside Mathematics is a tool for thought. A highly necessary tool in a world where both feedback and non linearities abound. Similarly, all kinds of parts of mathematics serve as tools for other parts and for other sciences. Applying a simple rewriting rule to the quote on the right above one finds such statements as: 'One service topology has rendered mathematical physics .. .'; 'One scrvice logic has rendered com puter science .. .'; 'One service category theory has rendcred mathematics .. .'. All arguably true. And all statements obtainable this way form part of the raison d'e"tre of this scries
Finite element approximation for optimal shape design : theory and applications by J Haslinger( Book )

9 editions published in 1988 in English and held by 212 WorldCat member libraries worldwide

Finite element approximation of variational problems and applications by M Křížek( Book )

13 editions published in 1990 in English and held by 205 WorldCat member libraries worldwide

Finite element approximation for optimal shape, material, and topology design by J Haslinger( Book )

9 editions published between 1996 and 1997 in English and held by 198 WorldCat member libraries worldwide

This book addresses the formulation, approximation and numerical solution of optimal shape design problems: from the continuous model through its discretization and approximation results, to sensitivity analysis and numerical realization. Shape optimization of structures is addressed in the first part, using variational inequalities of elliptic type. New results, such as contact shape optimization for bodies made of non-linear material sensitivity analysis based on isoparametric technique, and analysis of cost functionals related to contact stress distribution are included. The second part presents new concepts of shape optimization based on a fictitious domain approach. Finally, the application of the shape optimization methodology in the material design is discussed. This second edition is a fully revised and up-dated version of Finite Element Method for Optimal Shape Design. Numerous numerical examples illustrate the theoretical results, and industrial applications are given
Mathematical and numerical modelling in electrical engineering theory and applications by M Křížek( Book )

12 editions published between 1996 and 2011 in English and held by 184 WorldCat member libraries worldwide

The main aim of this book is twofold. Firstly, it shows engineers why it is useful to deal with, for example, Hilbert spaces, imbedding theorems, weak convergence, monotone operators, compact sets, when solving real-life technical problems. Secondly, mathematicians will see the importance and necessity of dealing with material anisotropy, inhomogeneity, nonlinearity and complicated geometrical configurations of electrical devices, which are not encountered when solving academic examples with the Laplace operator on square or ball domains. Mathematical and numerical analysis of several important technical problems arising in electrical engineering are offered, such as computation of magnetic and electric field, nonlinear heat conduction and heat radiation, semiconductor equations, Maxwell equations and optimal shape design of electrical devices. The reader is assumed to be familiar with linear algebra, real analysis and basic numerical methods
 
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WorldCat IdentitiesRelated Identities
Optimization of elliptic systems : theory and applications
Covers
Optimization of elliptic systems : theory and applicationsVariational and quasi-variational inequalities in mechanicsDesign and use of serious gamesPartial differential equations : modeling and numerical simulationStructural optimization with uncertaintiesFinite element methods : fifty years of the Courant elementReliable methods for computer simulation : error control and a posteriori estimatesMathematical models in electrical circuits : theory and applications
Alternative Names
Neittaanmäki, P.

Neittaanmäki, P. 1951-

Neittaanmäki, P. J.

Neittaanmäki, P.J. 1951-

Neittaanmaki, P. (Pekka), 1951-

Neittaanmäki, Pekka

Neittaanmaki, Pekka 1951-

Neittaanmäki, Pekka J. 1951-

Pekka Neittaanmäki Finnish scientist

Languages
English (274)