A New Version of α-Tight Closure
نویسندگان
چکیده
منابع مشابه
Tight Closure and Differential Simplicity
The behavior of the Hasse–Schmidt algebra under étale extension is used to show that the Hasse–Schmidt algebra of a smooth algebra of finite type over a field equals the ring of differential operators. These techniques show that the formation of Hasse–Schmidt derivations does not commute with localization, providing a counterexample to a question of Brown and Kuan; their conjecture is reformula...
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This paper facilitates the computation of tight closure by giving giving upper and lower bounds on the degrees of elements that need to be checked for inclusion in the tight closure of certain homogeneous ideals in a graded ring. Differential operators are introduced to the study of tight closure, and used to prove that the degree of any element in the tight closure of a homogeneous ideal (but ...
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We formulate problems of tight closure theory in terms of projective bundles and subbundles. This provides a geometric interpretation of such problems and allows us to apply intersection theory to them. This yields new results concerning the tight closure of a primary ideal in a two-dimensional graded domain.
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BACKGROUND The vacuum assisted closure (VAC) therapy has revolutionized the modern wound care. We developed a new concept of ‘VAC at home’ in order to decrease the hospital cost. METHODS The study was conducted in a private hospital from January 2009 to December 2010. Only those patients were included among whom the wounds were not complicated by concomitant injury and the patients were othe...
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ژورنال
عنوان ژورنال: Nagoya Mathematical Journal
سال: 2008
ISSN: 0027-7630,2152-6842
DOI: 10.1017/s0027763000025952