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"Macaulay, G. A"
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Gorenstein Rings via Homological Dimensions, and Symmetry in Vanishing of Ext and Tate Cohomology
by
Ghosh, Dipankar
,
Puthenpurakal, Tony J.
in
Associative Rings and Algebras
,
Commutative Rings and Algebras
,
Homology
2024
The aim of this article is to consider the spectral sequences induced by tensor-hom adjunction, and provide a number of new results. Let
R
be a commutative Noetherian local ring of dimension
d
. In the 1st part, it is proved that
R
is Gorenstein if and only if it admits a nonzero CM (Cohen-Macaulay) module
M
of finite Gorenstein dimension
g
such that
type
(
M
)
⩽
μ
(
Ext
R
g
(
M
,
R
)
)
(e.g.,
type
(
M
)
=
1
). This considerably strengthens a result of Takahashi. Moreover, we show that if there is a nonzero
R
-module
M
of depth
⩾
d
-
1
such that the injective dimensions of
M
,
Hom
R
(
M
,
M
)
and
Ext
R
1
(
M
,
M
)
are finite, then
M
has finite projective dimension and
R
is Gorenstein. In the 2nd part, we assume that
R
is CM with a canonical module
ω
. For CM
R
-modules
M
and
N
, we show that the vanishing of one of the following implies the same for others:
Ext
R
≫
0
(
M
,
N
+
)
,
Ext
R
≫
0
(
N
,
M
+
)
and
Tor
≫
0
R
(
M
,
N
)
, where
M
+
denotes
Ext
R
d
-
dim
(
M
)
(
M
,
ω
)
. This strengthens a result of Huneke and Jorgensen. Furthermore, we prove a similar result for Tate cohomologies under the additional condition that
R
is Gorenstein.
Journal Article
MACAULAY, ROSS G
2003
On July 23, 2003, ROSS G. MACAULAY, 76, of Heritage Harbour, died of cancer. Raised in Baltimore, he graduated from the Baltimore Polytechnic Institute, Johns Hopkins University, and earned his law degree from George Washington University. He was married to the late Mary Jane Shepard Macaulay for twenty years.
Newspaper Article
SCOREBOARD
2007
Teams of 8 x 1.8 km:- 1 Olympians 51.17, 2 Lap Dogs 51.43, 3 Ben's 52.43, 4 Teamed 55.09, 5 Northside Boyz and Gals 2 55.32, 6 Woden Harriers B 56.44, 7 Weston Creek B 57.13, 8 Randoms 57.39, 9 South Canberra Tuggeranong B 58.09, 10 Jog On 58.09, 11 Chapman Chargers 58.22, 12 Bilbys 5 58.44, 13 Bilbys 8 59.05, 14 Bilbys 3 60.00, 15 Bilbys 4 60.09, 16 Weston Creek C 60.18, 17 Bilbys 9 61.43, 18 Additon of Time Commutes 61.53, 19 121 Outdoor Warriors 62.14, 20 Bilbys 7 62.22, 21 Bilbys 6 62.56, 22 Northside Boyz and Gals 1 67.24, 23 Life Members Plus 67.40, 24 Only Vets 69.31, 25 The Legends 75.49, 26 121 Fitness Freaks 89.42.
Newspaper Article
SPORT DETAILS
2007
144: Terry Price (Qld) 73 71, Marcus Fraser (Vic) 77 67, Scott Barr (ACT) 74 70, David Diaz (Vic) 73 71, John Wade (Vic) 75 69, Aaron Townsend (NSW) 73 71, Brad Lamb (Vic) 73 71, Nick Flanagan (NSW) 73 71, Rohan Blizard (NSW a) 72 72, Andrew Tampion (Vic) 77 67, Scott Draper (Qld) 72 72, Lucas Parsons (NSW) 72 72, Richard Green (Vic) 73 71, Stephen Leaney (WA) 69 75, Kevin Stadler (USA) 73 71, Terry Pilkadaris (WA) 72 72, Michael Curtain (Vic) 73 71, Hyung- Sung Kim (Kor) 71 73, Tatsuhiko Takahashi (Jpn) 73 71, Matthew Millar (ACT) 71 73, Cameron Percy (Vic) 74 70 145: Scott Smith (Qld a) 72 73, Chris Campbell (ACT) 74 71, [Richard T Lee] (Nzl) 72 73, John Senden (Qld) 71 74, Kurt Barnes (NSW) 71 74, Hamish Robertson (Nzl) 73 72, Rodney Booth (Vic) 74 71, Ryan Haller (Qld) 74 71, Heath Reed (Vic) 71 74, Bronson La'Cassie (Qld) 74 71, Steven Conran (NSW) 71 74, Alistair Presnell (Vic) 73 72
Newspaper Article
Idea and Act in Elizabethan Fiction
2015,2016
Represents an attempt to apply the techniques of modern literary criticism to the fiction of the Elizabethan period. The author tries \"to determine what Elizabethan fiction writers were trying to do and how they did it.\"
Originally published in 1969.
The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
The Correspondence of Henry D. Thoreau
by
Henry David Thoreau, Robert Hudspeth
in
19th century
,
A Week on the Concord and Merrimack Rivers
,
Alcott
2014,2013,2015
This is the inaugural volume in the first full-scale scholarly edition of Thoreau's correspondence in more than half a century. When completed, the edition's three volumes will include every extant letter written or received by Thoreau--in all, almost 650 letters, roughly 150 more than in any previous edition, including dozens that have never before been published.
Correspondence 1contains 163 letters, ninety-six written by Thoreau and sixty-seven to him. Twenty-five are collected here for the first time; of those, fourteen have never before been published. These letters provide an intimate view of Thoreau's path from college student to published author. At the beginning of the volume, Thoreau is a Harvard sophomore; by the end, some of his essays and poems have appeared in periodicals and he is at work onA Week on the Concord and Merrimack RiversandWalden. The early part of the volume documents Thoreau's friendships with college classmates and his search for work after graduation, while letters to his brother and sisters reveal warm, playful relationships among the siblings. In May 1843, Thoreau moves to Staten Island for eight months to tutor a nephew of Emerson's. This move results in the richest period of letters in the volume: thirty-two by Thoreau and nineteen to him. From 1846 through 1848, letters about publishing and lecturing provide details about Thoreau's first years as a professional author. As the volume closes, the most ruminative and philosophical of Thoreau's epistolary relationships begins, that with Harrison Gray Otis Blake. Thoreau's longer letters to Blake amount to informal lectures, and in fact Blake invited a small group of friends to readings when these arrived.
Following every letter, annotations identify correspondents, individuals mentioned, and books quoted, cited, or alluded to, and describe events to which the letters refer. A historical introduction characterizes the letters and connects them with the events of Thoreau's life, a textual introduction lays out the editorial principles and procedures followed, and a general introduction discusses the significance of letter-writing in the mid-nineteenth century and the history of the publication of Thoreau's letters. Finally, a thorough index provides comprehensive access to the letters and annotations.