000 02251cam a2200265 a 4500
001 2050429
005 20250611125032.0
008 930107s1993 enka b 001 0 eng
020 _a0521410681
040 _aCSL
_cCSL
041 _2eng
_aeng
084 _aB6: 2 N3 NBHM
_qCSL
100 1 _aBruns, Winfried,
_eauthor.
_9454665
245 1 0 _aCohen-Macaulay rings
260 _aCambridge :
_bCambridge University Press,
_c1993.
300 _axi, 403 p. :
_bill. ;
_c24 cm.
440 0 _aCambridge studies in advanced mathematics ;
_v39
504 _aIncludes bibliographical references (p. 374-389) and index.
520 _aIn the last two decades Cohen-Macaulay rings and modules have been central topics in commutative algebra. This book meets the need for a thorough, self-contained introduction to the homological and combinatorial aspects of the theory of Cohen-Macaulay rings, Gorenstein rings, local cohomology, and canonical modules. A separate chapter is devoted to Hilbert functions (including Macaulay's theorem) and numerical invariants derived from them. The authors emphasize the study of explicit, specific rings, making the presentation as concrete as possible. So the general theory is applied to Stanley-Reisner rings, semigroup rings, determinantal rings, and rings of invariants. Their connections with combinatorics are highlighted, e.g. Stanley's upper bound theorem or Ehrhart's reciprocity law for rational polytopes. The final chapters are devoted to Hochster's theorem on big Cohen-Macaulay modules and its applications, including Peskine-Szpiro's intersection theorem, the Evans-Griffith syzygy theorem, bounds for Bass numbers, and tight closure. Throughout each chapter the authors have supplied many examples and exercises which, combined with the expository style, will make the book very useful for graduate courses in algebra. As the only modern, broad account of the subject it will be essential reading for researchers in commutative algebra.
650 0 _aCohen-Macaulay rings.
_9812598
650 0 _a p methods
_9812599
650 0 _aHilbert functions
_9812600
700 1 _aHerzog, Jürgen,
_eauthor.
_9465814
942 _2CC
_n0
_cTEXL
_hB6: 2 N3 NBHM
999 _c1431609
_d1431609