Branching Solutions to One-dimensional Variational Problems

Branching Solutions to One-dimensional Variational Problems PDF Author: Alexander O. Ivanov
Publisher: World Scientific
ISBN: 9810240600
Category : Mathematics
Languages : en
Pages : 365

Get Book

Book Description
This study deals with the new class of one-dimensional variational problems - the problems with branching solutions. Instead of extreme curves (mappings of a segment to a manifold) it investigates extreme networks, which are mappings of graphs (one-dimensional cell complexes) to a manifold. Various applications of the approach are presented, such as several generalizations of the famous Steiner problem of finding the shortest network spanning given points of the plane.

Branching Solutions to One-dimensional Variational Problems

Branching Solutions to One-dimensional Variational Problems PDF Author: Alexander O. Ivanov
Publisher: World Scientific
ISBN: 9810240600
Category : Mathematics
Languages : en
Pages : 365

Get Book

Book Description
This study deals with the new class of one-dimensional variational problems - the problems with branching solutions. Instead of extreme curves (mappings of a segment to a manifold) it investigates extreme networks, which are mappings of graphs (one-dimensional cell complexes) to a manifold. Various applications of the approach are presented, such as several generalizations of the famous Steiner problem of finding the shortest network spanning given points of the plane.

One-dimensional Variational Problems

One-dimensional Variational Problems PDF Author: Giuseppe Buttazzo
Publisher: Oxford University Press
ISBN: 9780198504658
Category : Mathematics
Languages : en
Pages : 282

Get Book

Book Description
While easier to solve and accessible to a broader range of students, one-dimensional variational problems and their associated differential equations exhibit many of the same complex behavior of higher-dimensional problems. This book, the first moden introduction, emphasizes direct methods and provides an exceptionally clear view of the underlying theory.

Optimization and Approximation

Optimization and Approximation PDF Author: Pablo Pedregal
Publisher: Springer
ISBN: 3319648438
Category : Mathematics
Languages : en
Pages : 254

Get Book

Book Description
This book provides a basic, initial resource, introducing science and engineering students to the field of optimization. It covers three main areas: mathematical programming, calculus of variations and optimal control, highlighting the ideas and concepts and offering insights into the importance of optimality conditions in each area. It also systematically presents affordable approximation methods. Exercises at various levels have been included to support the learning process.

Discrete Geometry and Algebraic Combinatorics

Discrete Geometry and Algebraic Combinatorics PDF Author: Alexander Barg
Publisher: American Mathematical Society
ISBN: 1470409054
Category : Mathematics
Languages : en
Pages : 190

Get Book

Book Description
This volume contains the proceedings of the AMS Special Session on Discrete Geometry and Algebraic Combinatorics held on January 11, 2013, in San Diego, California. The collection of articles in this volume is devoted to packings of metric spaces and related questions, and contains new results as well as surveys of some areas of discrete geometry. This volume consists of papers on combinatorics of transportation polytopes, including results on the diameter of graphs of such polytopes; the generalized Steiner problem and related topics of the minimal fillings theory; a survey of distance graphs and graphs of diameters, and a group of papers on applications of algebraic combinatorics to packings of metric spaces including sphere packings and topics in coding theory. In particular, this volume presents a new approach to duality in sphere packing based on the Poisson summation formula, applications of semidefinite programming to spherical codes and equiangular lines, new results in list decoding of a family of algebraic codes, and constructions of bent and semi-bent functions.

The Steiner Ratio

The Steiner Ratio PDF Author: Dietmar Cieslik
Publisher: Springer Science & Business Media
ISBN: 1475767986
Category : Computers
Languages : en
Pages : 247

Get Book

Book Description
Steiner's Problem concerns finding a shortest interconnecting network for a finite set of points in a metric space. A solution must be a tree, which is called a Steiner Minimal Tree (SMT), and may contain vertices different from the points which are to be connected. Steiner's Problem is one of the most famous combinatorial-geometrical problems, but unfortunately it is very difficult in terms of combinatorial structure as well as computational complexity. However, if only a Minimum Spanning Tree (MST) without additional vertices in the interconnecting network is sought, then it is simple to solve. So it is of interest to know what the error is if an MST is constructed instead of an SMT. The worst case for this ratio running over all finite sets is called the Steiner ratio of the space. The book concentrates on investigating the Steiner ratio. The goal is to determine, or at least estimate, the Steiner ratio for many different metric spaces. The author shows that the description of the Steiner ratio contains many questions from geometry, optimization, and graph theory. Audience: Researchers in network design, applied optimization, and design of algorithms.

The Nature of Motive Force

The Nature of Motive Force PDF Author: Achintya Kumar Pramanick
Publisher: Springer
ISBN: 3642544711
Category : Science
Languages : en
Pages : 141

Get Book

Book Description
In this monograph Prof. Pramanick explicates the law of motive force, a fundamental law of nature that can be observed and appreciated as an addition to the existing laws of thermodynamics. This unmistakable and remarkable tendency of nature is equally applicable to all other branches of studies. He first conceptualized the law of motive force in 1989, when he was an undergraduate student. Here he reports various applications of the law in the area of thermodynamics, heat transfer, fluid mechanics and solid mechanics, and shows how it is possible to solve analytically century-old unsolved problems through its application. This book offers a comprehensive account of the law and its relation to other laws and principles, such as the generalized conservation principle, variational formulation, Fermat’s principle, Bejan’s constructal law, entropy generation minimization, Bejan’s method of intersecting asymptotes and equipartition principle. Furthermore, the author addresses some interrelated fundamental problems of contemporary interest, especially to thermodynamicists, by combining analytical methods, physical reasoning and the proposed law of motive force. This foundational work is a valuable reading for both students and researchers in exact as well as non-exact sciences and, at the same time, a pleasant learning experience for the novice.

Shortest Connectivity

Shortest Connectivity PDF Author: Dietmar Cieslik
Publisher: Springer Science & Business Media
ISBN: 9780387235387
Category : Business & Economics
Languages : en
Pages : 282

Get Book

Book Description
The aim in this graduate level text is to outline the key mathematical concepts that underpin these important questions in applied mathematics. These concepts involve discrete mathematics (particularly graph theory), optimization, computer science, and several ideas in biology.

Differential Geometric Structures and Applications

Differential Geometric Structures and Applications PDF Author: Vladimir Rovenski
Publisher: Springer Nature
ISBN: 3031505867
Category :
Languages : en
Pages : 323

Get Book

Book Description


Phase Optimization Problems

Phase Optimization Problems PDF Author: Olena Bulatsyk
Publisher: John Wiley & Sons
ISBN: 9783527629831
Category : Technology & Engineering
Languages : en
Pages : 319

Get Book

Book Description
This is the only book available in English language to consider inverse and optimization problems in which phase field distributions are used as optimizing functions. The mathematical technique used relates to nonlinear integral equations, with numerical methods developed and applied to concrete problems. Written by a team of outstanding and renowned experts in the field, this monograph will appeal to all those dealing with the investigation, design, and optimization of electromagnetic and acoustic radiating and transmitting devices and systems, while also being of interest to mathematicians working on the theory of nonlinear integral equations.

Variational Analysis

Variational Analysis PDF Author: R. Tyrrell Rockafellar
Publisher: Springer Science & Business Media
ISBN: 3642024319
Category : Mathematics
Languages : en
Pages : 736

Get Book

Book Description
From its origins in the minimization of integral functionals, the notion of variations has evolved greatly in connection with applications in optimization, equilibrium, and control. This book develops a unified framework and provides a detailed exposition of variational geometry and subdifferential calculus in their current forms beyond classical and convex analysis. Also covered are set-convergence, set-valued mappings, epi-convergence, duality, and normal integrands.