This book is an introduction to the theory of rings and modules that goes beyond what one normally obtains in a graduate course in abstract algebra. In addition to the presentation of standard topics in ring and module theory, it also covers category theory, homological algebra and even more specialized topics like injective envelopes and proj

Rupert DeVille is happy. This evening Rupert has planned to surprise his girlfriend, Carla by proposing to her over a romantic meal. When Rupert is on his way to work that morning he is snatched off the street by two men in a white van. Live with Rupert during his abduction, learn about his dysfunctional parents, his fears, his dreams for the future and his love for Carla. Meanwhile, at home, Carla learns that Rupert is missing. Carla starts a frantic search to find Rupert and enlists the help of Rupert's employer, George, who is just about to retire. As Carla searches for Rupert we find out about her Fathers sudden death, her Mothers depression and Carla's own wayward past. Rupert, Carla & the General is a thrilling suspense romance written with a touch of wit and humour that will keep you turning page after page. Paul White has the rare ability to bring characters to life, making them real people with feelings, worries and inner doubts, just like you and I. Paul White has masterly crafted Rupert, Carla & the General into a work that leads the reader astray, down the dark alleyways of the past, before bringing them back into the glaring light of the present. Paul manages to do all this while weaving a mixture of laugh-out-loud humour and offbeat wit into the story.

This new book can be read independently from the first volume and may be used for lecturing, seminar- and self-study, or for general reference. It focuses more on specific topics in order to introduce readers to a wealth of basic and useful ideas without the hindrance of heavy machinery or undue abstractions. User-friendly with its abundance of examples illustrating the theory at virtually every step, the volume contains a large number of carefully chosen exercises to provide newcomers with practice, while offering a rich additional source of information to experts. A direct approach is used in order to present the material in an efficient and economic way, thereby introducing readers to a considerable amount of interesting ring theory without being dragged through endless preparatory material.

A method is presented to determine the general instability load of a ring-stiffened corrugated cylinder under axial compression. This method is developed using linear small deflection theory. The stiffness properties of the rings are uniformly distributed along the cylinder and the eccentricity of the rings with respect to the corrugation centerline is taken into account. Analytical and experimental results are compared. In this comparison good agreement is obtained for cylinders loaded in pure compression. For the cylinders subjected to bending or a combination of bending and compression the analytical calculations are conservative. A computer program for the application of this method has been developed. The program and an explanation of its notation are included in this report.

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