What is included with this book?
Preface | p. vii |
Rings and Ideals | p. 1 |
Recollection and Preliminaries | p. 1 |
Prime and Maximal Ideals | p. 2 |
Sums, Products and Colons | p. 6 |
Radicals | p. 8 |
Zariski Topology | p. 9 |
Exercises | p. 10 |
Modules and Algebras | p. 13 |
Modules | p. 13 |
Homomorphisms | p. 17 |
Direct Products and Direct Sums | p. 19 |
Free Modules | p. 23 |
Exact Sequences | p. 25 |
Algebras | p. 27 |
Fractions | p. 30 |
Graded Rings and Modules | p. 35 |
Homogeneous Prime and Maximal Ideals | p. 38 |
Exercises | p. 40 |
Polynomial and Power Series Rings | p. 45 |
Polynomial Rings | p. 45 |
Power Series Rings | p. 47 |
Exercises | p. 53 |
Homological Tools I | p. 55 |
Categories and Functors | p. 55 |
Exact Functors | p. 58 |
The Functor Hom | p. 61 |
Tensor Product | p. 65 |
Base Change | p. 74 |
Direct and Inverse Limits | p. 76 |
Injective, Projective and Flat Modules | p. 79 |
Exercises | p. 85 |
Tensor, Symmetric and Exterior Algebras | p. 89 |
Tensor Product of Algebras | p. 89 |
Tensor Algebras | p. 92 |
Symmetric Algebras | p. 94 |
Exterior Algebras | p. 97 |
Anticommutative and Alternating Algebras | p. 101 |
Determinants | p. 106 |
Exercises | p. 109 |
Finiteness Conditions | p. 111 |
Modules of Finite Length | p. 111 |
Noetherian Rings and Modules | p. 115 |
Artinian Rings and Modules | p. 120 |
Locally Free Modules | p. 123 |
Exercises | p. 126 |
Primary Decomposition | p. 129 |
Primary Decomposition | p. 129 |
Support of a Module | p. 135 |
Dimension | p. 138 |
Exercises | p. 139 |
Filtrations and Completions | p. 143 |
Filtrations and Associated Graded Rings and Modules | p. 143 |
Linear Topologies and Completions | p. 147 |
Ideal-adic Completions | p. 151 |
Initial Submodules | p. 153 |
Completion of a Local Ring | p. 154 |
Exercises | p. 156 |
Numerical Functions | p. 159 |
Numerical Functions | p. 159 |
Hilbert Function of a Graded Module | p. 162 |
Hilbert-Samuel Function over a Local Ring | p. 163 |
Exercises | p. 167 |
Principal Ideal Theorem | p. 169 |
Principal Ideal Theorem | p. 169 |
Dimension of a Local Ring | p. 171 |
Exercises | p. 172 |
Integral Extensions | p. 175 |
Integral Extensions | p. 175 |
Prime Ideals in an Integral Extension | p. 178 |
Integral Closure in a Finite Field Extension | p. 182 |
Exercises | p. 184 |
Normal Domains | p. 187 |
Unique Factorization Domains | p. 187 |
Discrete Valuation Rings and Normal Domains | p. 192 |
Fractionary Ideals and Invertible Ideals | p. 198 |
Dedekind Domains | p. 199 |
Extensions of a Dedekind Domain | p. 203 |
Exercises | p. 207 |
Transcendental Extensions | p. 209 |
Transcendental Extensions | p. 209 |
Separable Field Extensions | p. 212 |
Lüroth's Theorem | p. 217 |
Exercises | p. 220 |
Affine Algebras | p. 223 |
Noether's Normalization Lemma | p. 223 |
Hilbert's Nullstellensatz | p. 226 |
Dimension of an Affine Algebra | p. 230 |
Dimension of a Graded Ring | p. 234 |
Dimension of a Standard Graded Ring | p. 236 |
Exercises | p. 239 |
Derivations and Differentials | p. 241 |
Derivations | p. 241 |
Differentials | p. 247 |
Exercises | p. 253 |
Valuation Rings and Valuations | p. 255 |
Valuations Rings | p. 255 |
Valuations | p. 258 |
Extensions of Valuations | p. 262 |
Real Valuations and Completions | p. 265 |
Hensel's Lemma | p. 274 |
Discrete Valuations | p. 276 |
Exercises | p. 280 |
Homological Tools II | p. 283 |
Derived Functors | p. 283 |
Uniqueness of Derived Functors | p. 286 |
Complexes and Homology | p. 291 |
Resolutions of a Module | p. 296 |
Resolutions of a Short Exact Sequence | p. 300 |
Construction of Derived Functors | p. 303 |
The Functors Ext | p. 308 |
The Functors Tor | p. 312 |
Local Cohomology | p. 314 |
Homology and Cohomology of Groups | p. 315 |
Exercises | p. 320 |
Homological Dimensions | p. 323 |
Injective Dimension | p. 323 |
Projective Dimension | p. 325 |
Global Dimension | p. 327 |
Projective Dimension over a Local Ring | p. 328 |
Exercises | p. 330 |
Depth | p. 331 |
Regular Sequences and Depth | p. 331 |
Depth and Projective Dimension | p. 336 |
Cohen-Macaulay Modules over a Local Ring | p. 338 |
Cohen-Macaulay Rings and Modules | p. 344 |
Exercises | p. 346 |
Regular Rings | p. 347 |
Regular Local Rings | p. 347 |
A Differential Criterion for Regularity | p. 350 |
A Homological Criterion for Regularity | p. 352 |
Regular Rings | p. 353 |
A Regular Local Ring is a UFD | p. 354 |
The Jacobian Criterion for Geometric Regularity | p. 356 |
Exercises | p. 362 |
Divisor Class Groups | p. 365 |
Divisor Class Groups | p. 365 |
The Case of Fractions | p. 369 |
The Case of Polynomial Extensions | p. 371 |
The Case of Galois Descent | p. 373 |
Galois Descent in the Local Case | p. 377 |
Exercises | p. 381 |
Bibliography | p. 383 |
Index | p. 385 |
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