Proofs from THE BOOK


Book Description

According to the great mathematician Paul Erdös, God maintains perfect mathematical proofs in The Book. This book presents the authors candidates for such "perfect proofs," those which contain brilliant ideas, clever connections, and wonderful observations, bringing new insight and surprising perspectives to problems from number theory, geometry, analysis, combinatorics, and graph theory. As a result, this book will be fun reading for anyone with an interest in mathematics.




A Genealogy of Six Generations of Gemmills in America


Book Description

William Gemmill (1722-1789) and his wife, Jannett, immigrated in 1745 from Scotland to York County, Pennsylvania. He served in both the French and Indian War and the Revolutionary War. Two of his brothers immigrated later. Descendants and relatives lived in Pennsylvania, Ohio, Illinois, Iowa, Kansas, Washington and elsewhere. Other Gemmill family members immigrated from Scotland to Canada, settling in Ontario, Manitoba and elsewhere. Includes notes on ancestry in Scotland and Denmark.




Brenner-James Genealogy


Book Description




Magnetism and Synchrotron Radiation


Book Description

Advances in the synthesis of new materials with often complex, nano-scaled structures require increasingly sophisticated experimental techniques that can probe the electronic states, the atomic magnetic moments and the magnetic microstructures responsible for the properties of these materials. At the same time, progress in synchrotron radiation techniques has ensured that these light sources remain a key tool of investigation, e.g. synchrotron radiation sources of the third generation are able to support magnetic imaging on a sub-micrometer scale. With the Fifth Mittelwihr School on Magnetism and Synchrotron Radiation the tradition of teaching the state-of-the-art on modern research developments continues and is expressed through the present set of extensive lectures provided in this volume. While primarily aimed at postgraduate students and newcomers to the field, this volume will also benefit researchers and lecturers actively working in the field.




More Than a Scenic Mountain Landscape


Book Description

This study focuses on the cultural-historical environment of the 88,900-acre (35,560-ha) Valles Caldera National Preserve (VCNP) over the past four centuries of Spanish, Mexican, and U.S. governance. It includes a review and synthesis of available published and unpublished historical, ethnohistorical, and ethnographic literature about the human occupation of the area now contained within the VCNP. Documents include historical maps, texts, letters, diaries, business records, photographs, land and mineral patents, and court testimony.




Optimal Control Theory with Applications in Economics


Book Description

A rigorous introduction to optimal control theory, with an emphasis on applications in economics. This book bridges optimal control theory and economics, discussing ordinary differential equations, optimal control, game theory, and mechanism design in one volume. Technically rigorous and largely self-contained, it provides an introduction to the use of optimal control theory for deterministic continuous-time systems in economics. The theory of ordinary differential equations (ODEs) is the backbone of the theory developed in the book, and chapter 2 offers a detailed review of basic concepts in the theory of ODEs, including the solution of systems of linear ODEs, state-space analysis, potential functions, and stability analysis. Following this, the book covers the main results of optimal control theory, in particular necessary and sufficient optimality conditions; game theory, with an emphasis on differential games; and the application of control-theoretic concepts to the design of economic mechanisms. Appendixes provide a mathematical review and full solutions to all end-of-chapter problems. The material is presented at three levels: single-person decision making; games, in which a group of decision makers interact strategically; and mechanism design, which is concerned with a designer's creation of an environment in which players interact to maximize the designer's objective. The book focuses on applications; the problems are an integral part of the text. It is intended for use as a textbook or reference for graduate students, teachers, and researchers interested in applications of control theory beyond its classical use in economic growth. The book will also appeal to readers interested in a modeling approach to certain practical problems involving dynamic continuous-time models.




Pennsylvania German Pioneers


Book Description




Mathematics Education in Different Cultural Traditions- A Comparative Study of East Asia and the West


Book Description

The idea of the ICMI Study 13 is outlined as follows: Education in any social environment is influenced in many ways by the traditions of these environments. This study brings together leading experts to research and report on mathematics education in a global context. Mathematics education faces a split phenomenon of difference and correspondence. A study attempting a comparison between mathematics education in different traditions will be helpful to understanding this phenomenon.




Higher Education in Germany—Recent Developments in an International Perspective


Book Description

Otto Hüther and Georg Krücken analyze the developments of the last 20 years in their new book on German higher education. The foreign observer of German higher education, even the informed foreign observer, struggles to find denominators, not to mention common denominators of a bewildering array of approaches. Otto Hüther and Georg Krücken, in this book, do an absolutely splendid job of offering theoretical perspectives, qualitative and quantitative data, and comparative assessments This book discusses the main higher education structures in Germany, both conceptually and with a particular emphasis on recent developments like, e.g., the growth and differentiation of the system, governance reforms, and the Excellence Initiative. It analyses recent developments from an international perspective, as the German system is clearly embedded in broader, transnational trends. As such, the book provides a comprehensive and detailed account of both new dynamics and stable paths in the German higher education system. This book will be of interest to scholars and students dealing with higher education or Germany as an object of study (e.g. in education research, science studies, organization studies, sociology, psychology, political science), and to higher education managers, leaders, and policymakers who are interested in recent trends in German higher education




Computational Fluid Dynamics


Book Description

Computational Fluid Dynamics (CFD) is an important design tool in engineering and also a substantial research tool in various physical sciences as well as in biology. The objective of this book is to provide university students with a solid foundation for understanding the numerical methods employed in today's CFD and to familiarise them with modern CFD codes by hands-on experience. It is also intended for engineers and scientists starting to work in the field of CFD or for those who apply CFD codes. Due to the detailed index, the text can serve as a reference handbook too. Each chapter includes an extensive bibliography, which provides an excellent basis for further studies.