books.google.fr - Algebraic Geometry is the study of systems of polynomial equations in one or more variables, asking such questions as: Does the system have finitely many solutions, and if so how can one find them? And if there are infinitely many solutions, how can they be described and manipulated? The solutions of...http://books.google.fr/books/about/Ideals_Varieties_and_Algorithms.html?hl=fr&id=yCsDO425PC0C&utm_source=gb-gplus-shareIdeals, Varieties, and Algorithms