Commutative Algebra through Exercises
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The topics presented here are not commonly found in a single text. Consequently, the first part presents definitions, properties, and results crucial for understanding and solving the exercises, serving also as a valuable reference. The second part contains the exercises and a section titled with "True or False?" questions, which serves as a valid self-assessment test. Considerable effort has been invested in crafting solutions that provide the essential details, aiming for a well-balanced presentation. We intend to guide students systematically through the challenging process of writing mathematical proofs with formal correctness and clarity.
Our approach is constructive, aiming to illustrate concepts by applying them to the analysis of multivariate polynomial rings and modules over a principal ideal domain (PID) whenever feasible. Algorithms for computing these objects facilitate the generation of diverse examples. In particular, the structure of finitely generated modules over a PID is analyzed using the Smith canonical form of matrices. Furthermore, various properties of polynomial rings are investigated through the application of Buchberger’s Algorithm for computing Gröbner bases.
This book is intended for advanced undergraduates or master’s students, assuming only basic knowledge of finite fields, Abelian groups, and linear algebra. This approach aims to inspire the curiosity of readers and encourages them to find their own proofs while providing detailed solutions to support their learning. It also provides students with the necessary tools to pursue more advanced studies in commutative algebra and related subjects.
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Andrea Bandini is an associate professor of algebra at the Department of Mathematics of the University of Pisa. He has taught several courses in basic algebra, commutative algebra, and number theory. His research interests mainly concern algebraic number theory and arithmetic geometry.
Patrizia Gianni is a professor of algebra specializing in computer algebra and is recognized for her contributions to Gröbner bases and computational real algebraic geometry. She played a key role in the development of the Axiom computer algebra system.
Enrico Sbarra received his doctorate in Germany at the University Duisburg-Essen under the supervision of Jürgen Herzog. After collaborating with the Universities of Trieste, Bochum and Genoa, since 2008, he has been a researcher in algebra and a lecturer at the Department of Mathematics in Pisa. He is the author of several papers published in prominent international journals. His research interests include combinatorial and commutative algebra, with applications to algebraic geometry.
