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The inspirational, true story of how Frederick Douglass found his way to freedom one word at a time. This picture book biography chronicles the youth of Frederick Douglass, one of the most prominent African American figures in American history. Douglass spent his life advocating for the equality of all, and it was through reading that he was able to stand up for himself and others. Award-winning husband-wife team Lesa Cline-Ransome and James E. Ransome present a moving and captivating look at the young life of the inspirational man who said, “I would unite with anybody to do right and with nobody to do wrong.”
This volume is devoted to the study of hyperbolic free boundary problems possessing variational structure. Such problems can be used to model, among others, oscillatory motion of a droplet on a surface or bouncing of an elastic body against a rigid obstacle. In the case of the droplet, for example, the membrane surrounding the fluid in general forms a positive contact angle with the obstacle, and therefore the second derivative is only a measure at the contact free boundary set. We will show how to derive the mathematical problem for a few physical systems starting from the action functional, discuss the mathematical theory, and introduce methods for its numerical solution. The mathematical theory and numerical methods depart from the classical approaches in that they are based on semi-discretization in time, which facilitates the application of the modern theory of calculus of variations.
Praise for the Third Edition ". . . an expository masterpiece of the highest didactic value that has gained additional attractivity through the various improvements . . ."—Zentralblatt MATH The Fourth Edition of Introduction to Abstract Algebra continues to provide an accessible approach to the basic structures of abstract algebra: groups, rings, and fields. The book's unique presentation helps readers advance to abstract theory by presenting concrete examples of induction, number theory, integers modulo n, and permutations before the abstract structures are defined. Readers can immediately begin to perform computations using abstract concepts that are developed in greater detail later in ...
A word is said to be primitive if it cannot be represented as any power of another word. It is a well-known conjecture that the set of all primitive words Q over a non-trivial alphabet is not context-free: this conjecture is still open. In this book, the authors deal with properties of primitive words over a non-primitive alphabet, the language consisting of all primitive words and related languages. Moreover, some decidable and undecidable problems with respect to the above languages are discussed as well. As another try, a search for a non-phrase structure grammar which generates Q is performed.
This is a textbook for an undergraduate course in probability and statistics. The approximate prerequisites are two or three semesters of calculus and some linear algebra. Students attending the class include mathematics, engineering, and computer science majors.
This first volume of the French comic trilogy from Ubisoft, tells the story of Desmond Miles' abduction by Abstergo and their plans to rip the blood-steeped memories of Desmond's ancestors from his genetic code. Add to the mix the mysterious and violently terrified Subject 16 and a desperate flight from Abstergo, and this makes for a fast-paced and thrilling addition to the game's universe.
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