One of the most remarkable and beautiful theorems in coding theory is Gleason's 1970 theorem about the weight enumerators of self-dual codes and their connections with invariant theory, which has inspired hundreds of papers about generalizations and applications of this theorem to different types of codes. This self-contained book develops a new theory which is powerful enough to include all the earlier generalizations.
Preface.- 1 The Type of a Self-Dual Code.- 2 Weight Enumerators and Important Types.- 3 Closed Codes.- 4 The Category Quad.- 5 The Main Theorems.- 6 Real and Complex Clifford Groups.- 7 Classical Self-Dual Codes.- 8 Further Examples of Self-Dual Codes.- 9 Lattices.- 10 Maximal Isotropic Codes and Lattices.- 11 Extremal and Optimal Codes.- 12 Enumeration of Self-Dual Codes.- 13 Quantum Codes.- Bibliography.- Index.
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