John G. Harris intended to explain in this book the special techniques required to model the radiation and diffraction of elastic and surface waves. Sadly, he died before he could fulfil this ambition, but his plan has been brought to fruition by a team of his distinguished collaborators. The book begins with the basic underlying equations for wave motion and then builds upon this foundation by solving a number of fundamental scattering problems. The remaining chapters provide a thorough introduction to modern techniques that have proven essential to understanding radiation and diffraction at high frequencies. Graduate students, researchers and professionals in applied mathematics, physics and engineering will find that the chapters increase in complexity, beginning with plane-wave propagation and spectral analyses. Other topics include elastic wave theory, the Wiener–Hopf technique, the effects of viscosity on acoustic diffraction, and the phenomenon of channelling of wave energy along guided structures.
Bridging the gap between modern differential geometry and the mathematical physics of general relativity, this text, in its second edition, includes new and expanded material on topics such as the instability of both geodesic completeness and geodesic incompleteness for general space-times, geodesic connectibility, the generic condition, the sectional curvature function in a neighbourhood of degenerate two-plane, and proof of the Lorentzian Splitting Theorem.;Five or more copies may be ordered by college or university stores at a special student price, available on request.
For Junior, Senior, and Graduate courses in Human Evolution taught in anthropology and biology departments. This book is the most comprehensive collection of cutting edge articles on human evolution. Designed for use by students in anthropology, paleontology, and evolutionary biology, this edited volume brings together the major ideas and publications on human evolution of the past three decades. The book spans the entire scope of human evolution with particular emphasis on the fossil record, including archaeological studies.
Although much is known about the political stance of the military at large during the Civil War, the political party affiliations of individual soldiers have received little attention. Drawing on archival sources from twenty-five generals and 250 volunteer officers and enlisted men, John Matsui offers the first major study to examine the ways in which individual politics were as important as military considerations to battlefield outcomes and how the experience of war could alter soldiers’ political views. The conservative war aims pursued by Abraham Lincoln’s generals (and to some extent, the president himself) in the first year of the American Civil War focused on the preservation of the Union and the restoration of the antebellum status quo. This approach was particularly evident in the prevailing policies and attitudes toward Confederacy-supporting Southern civilians and slavery. But this changed in Virginia during the summer of 1862 with the formation of the Army of Virginia. If the Army of the Potomac (the major Union force in Virginia) was dominated by generals who concurred with the ideology of the Democratic Party, the Army of Virginia (though likewise a Union force) was its political opposite, from its senior generals to the common soldiers. The majority of officers and soldiers in the Army of Virginia saw slavery and pro-Confederate civilians as crucial components of the rebel war effort and blamed them for prolonging the war. The frustrating occupation experiences of the Army of Virginia radicalized them further, making them a vanguard against Southern rebellion and slavery within the Union army as a whole and paving the way for Abraham Lincoln to issue the Emancipation Proclamation.
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