منابع مشابه
Comparing Powers and Symbolic Powers of Ideals
We develop tools to study the problem of containment of symbolic powers I(m) in powers I for a homogeneous ideal I in a polynomial ring k[P ] in N + 1 variables over an arbitrary algebraically closed field k. We obtain results on the structure of the set of pairs (r, m) such that I(m) ⊆ I. As corollaries, we show that I2 contains I(3) whenever S is a finite generic set of points in P2 (thereby ...
متن کاملPowers of Two Modulo Powers of Three
Since 2 is a primitive root of 3 for each positive integer m, the set of points {(n, 2 mod 3) : n > 0}, viewed as a subset of Z>0×Z>0 is bi-periodic, with minimal periods φ(3) (horizontally) and 3 (vertically). We show that if one considers the classes of n modulo 6, one obtains a finer structural classification. This result is presented within the context of the question of strong normality of...
متن کاملLactobacilli from turkeys.
Lactobacilli have been reported as being a predominant bacterial type in the intestinal tract of various warm-blooded animals. For instance, Crecelius and Rettger (1943) found that lactobacilli are the most prevalent bacteria in the intestinal tract of guinea pigs. Shapiro and Sarles (1949) reported that lactobacilli are the most numerous bacteria in most areas of the intestinal tract of chicke...
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An anaesthetic technique employing halothane in oxygen for use in adult turkeys is described. The mixture was administered using a Magill attachment and a Hall cat mask. Induction was rapid and excitement-free. Anaesthesia was maintained for varying periods of time up to a maYimnm of 80 minutes. Recovery was rapid. In a total of twenty-five turkeys no deaths occurred which were attributable to ...
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ژورنال
عنوان ژورنال: Nature
سال: 1975
ISSN: 0028-0836,1476-4687
DOI: 10.1038/253488a0