Stability of associated primes and equality of ordinary and symbolic powers of ideals

1999 ◽  
Vol 27 (7) ◽  
pp. 3221-3231 ◽  
Author(s):  
Susan Morey
Author(s):  
James Lewis

We investigate the rational powers of ideals. We find that in the case of monomial ideals, the canonical indexing leads to a characterization of the rational powers yielding that symbolic powers of squarefree monomial ideals are indeed rational powers themselves. Using the connection with symbolic powers techniques, we use splittings to show the convergence of depths and normalized Castelnuovo–Mumford regularities. We show the convergence of Stanley depths for rational powers, and as a consequence of this, we show the before-now unknown convergence of Stanley depths of integral closure powers. Additionally, we show the finiteness of asymptotic associated primes, and we find that the normalized lengths of local cohomology modules converge for rational powers, and hence for symbolic powers of squarefree monomial ideals.


2007 ◽  
Vol 51 (1) ◽  
pp. 171-183 ◽  
Author(s):  
Melvin Hochster ◽  
Craig Huneke

2012 ◽  
Vol 4 (2) ◽  
pp. 281-292 ◽  
Author(s):  
Aline Hosry ◽  
Youngsu Kim ◽  
Javid Validashti

2010 ◽  
Vol 19 (3) ◽  
pp. 399-417 ◽  
Author(s):  
Cristiano Bocci ◽  
Brian Harbourne

Author(s):  
Enrico Carlini ◽  
Huy Tài Hà ◽  
Brian Harbourne ◽  
Adam Van Tuyl

2020 ◽  
Vol 102 (2) ◽  
pp. 453-469
Author(s):  
Eloísa Grifo ◽  
Craig Huneke ◽  
Vivek Mukundan

2017 ◽  
Vol 2019 (10) ◽  
pp. 2999-3014 ◽  
Author(s):  
Eloísa Grifo ◽  
Craig Huneke

Abstract Given a radical ideal $I$ in a regular ring $R$, the Containment Problem of symbolic and ordinary powers of $I$ consists of determining when the containment $I^{(a)} \subseteq I^b$ holds. By work of Ein–Lazersfeld–Smith, Hochster–Huneke and Ma–Schwede, there is a uniform answer to this question, but the resulting containments are not necessarily best possible. We show that a conjecture of Harbourne holds when $R/I$ is F-pure, and prove tighter containments in the case when $R/I$ is strongly F-regular.


Author(s):  
Hailong Dao ◽  
Alessandro De Stefani ◽  
Eloísa Grifo ◽  
Craig Huneke ◽  
Luis Núñez-Betancourt

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