Thomas Hawkins – författare

Written by the recipient of the 1997 MAA Chauvenet Prize for mathematical exposition, this book tells how the theory of Lie groups emerged from a fascinating cross fertilization of many strains of 19th and early 20th century geometry, analysis, mathematical physics, algebra and topology. The reader will meet a host of mathematicians from the period and become acquainted with the major mathematical schools. The first part describes the geometrical and analytical considerations that initiated the theory at the hands of the Norwegian mathematician, Sophus Lie. The main figure in the second part is Weierstrass' student Wilhelm Killing, whose interest in the foundations of non-Euclidean geometry led to his discovery of almost all the central concepts and theorems on the structure and classification of semisimple Lie algebras. The scene then shifts to the Paris mathematical community and Elie Cartan's work on the representation of Lie algebras. The final part describes the influential, unifying contributions of Hermann Weyl and their context: Hilbert's Gottingen, general relativity and the Frobenius-Schur theory of characters.The book is written with the conviction that mathematical understanding is deepened by familiarity with underlying motivations and the less formal, more intuitive manner of original conception. The human side of the story is evoked through extensive use of correspondence between mathematicians. The book should prove enlightening to a broad range of readers, including prospective students of Lie theory, mathematicians, physicists and historians and philosophers of science.

This book critically examines the effectiveness of the United Kingdom’s child and family social work structures and proposes the integration of a trauma-informed approach to improve current social work practice.The authors argue that current government policies, theoretical frameworks and practices contribute to structural inefficiencies leaving vulnerable children and families without the support they so desperately need. Drawing on evidence-based research, this book advocates for a trauma-focused, family-centred approach, focusing on interventions that are framed around national and international guidelines to emphasise prevention and healing over crisis management.This call-to-action book provides social workers, policymakers, caregivers and legal professionals with a roadmap towards reform and bridges the gap between public perception and professional practice to foster a trauma-informed approach.

This book critically examines the effectiveness of the United Kingdom’s child and family social work structures and proposes the integration of a trauma-informed approach to improve current social work practice.The authors argue that current government policies, theoretical frameworks and practices contribute to structural inefficiencies leaving vulnerable children and families without the support they so desperately need. Drawing on evidence-based research, this book advocates for a trauma-focused, family-centred approach, focusing on interventions that are framed around national and international guidelines to emphasise prevention and healing over crisis management.This call-to-action book provides social workers, policymakers, caregivers and legal professionals with a roadmap towards reform and bridges the gap between public perception and professional practice to foster a trauma-informed approach.

This book is both more and less than a history of the theory of Lie groups during the period 1869-1926. No attempt has been made to provide an exhaustive treatment of all aspects of the theory. Instead, I have focused upon its origins and upon the subsequent development of its structural as­ pects, particularly the structure and representation of semisimple groups. In dealing with this more limited subject matter, considerable emphasis has been placed upon the motivation behind the mathematics. This has meant paying close attention to the historical context: the mathematical or physical considerations that motivate or inform the work of a particular mathematician as well as the disciplinary ideals of a mathematical school that encourage research in certain directions. As a result, readers will ob­ tain in the ensuing pages glimpses of and, I hope, the flavor of many areas of nineteenth and early twentieth century geometry, algebra, and analysis. They will also encounter many of the mathematicians of the period, includ­ ing quite a few not directly connected with Lie groups, and will become acquainted with some of the major mathematical schools. In this sense, the book is more than a history of the theory of Lie groups. It provides a different perspective on the history of mathematics between, roughly, 1869 and 1926. Hence the subtitle.

He also discusses the Berlin school of mathematics and the guiding force of Weierstrass in that school, as well as the fundamental work of d'Alembert, Lagrange, and Laplace, and of Gauss, Eisenstein and Cayley that laid the groundwork for Frobenius's work in linear algebra.

He also discusses the Berlin school of mathematics and the guiding force of Weierstrass in that school, as well as the fundamental work of d'Alembert, Lagrange, and Laplace, and of Gauss, Eisenstein and Cayley that laid the groundwork for Frobenius's work in linear algebra.