节省
发表于 2025-3-30 11:12:22
Fereidoon Shahidi start by looking at groups of permutations from which the concept of a group took its origin. Permutations have a diverse range of applications to cryptography. We pay a special attention to orders of permutations and analysis of repeated actions. We briefly consider several topics in general group
BIDE
发表于 2025-3-30 15:50:21
Jennifer M. Ames,S. Craig Duckham,Jokie Bakkeris the theory of cost of computations where additions and subtractions are considered to cost nothing and the total cost is measured in terms of the number of multiplications and divisions necessary to achieve the algorithm. The essential tool is very simple: abstract linear algebra, but the results
Obsequious
发表于 2025-3-30 17:58:31
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overweight
发表于 2025-3-30 21:56:35
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我要沮丧
发表于 2025-3-31 04:55:43
Mathias K. Sucan,Gerald F. Russell polynomials . and .. From this follows.and.Conversely, suppose that there exist polynomials . and ., with ∂. < . and ∂. < ., such that (.) is satisfied. Dividing . and . by (., .), (.) becomes .. = .., with (.., .. ) = 1. Then .. divides ., . = ... and hence .. = .. = ...., so . = .... Moreover, ∂.
facetious
发表于 2025-3-31 06:51:38
G. Zehentbauer,W. Groschutset that the interest of the method does not lie in its applicability (it is not really efficient, even for polynomials of degree as low as five) but rather in its existence. Indeed, it affords an algorithm that in finitely many steps allows one to establish whether a polynomial is reducible or no
fallible
发表于 2025-3-31 11:39:01
Vinod T. Das,Thomas G. Hartman,John N. Manos,John J. Manura,Christopher W. Bakern Abels Nachweis für die Unmöglichkeit, die allgemeine Gleichung fünften oder höheren Grades mit Radikalen zu lösen, dadurch Rechnung zu tragen, uns bei Gleichungen ab dem fünften Grad auf spezielle Gleichungen zu beschränken.
apiary
发表于 2025-3-31 13:32:55
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Bereavement
发表于 2025-3-31 21:14:43
Headspace Techniques in Foods, Fragrances and Flavors,f determining concentrations in the product of interest. A brief overview of contemporary headspace applications and recent innovations are presented from the literature and Chapters in this book. New approaches used to concentrate volatiles under static conditions such as solid phase micro extracti
Figate
发表于 2025-4-1 00:17:35
,Headspace—Gas Chromatography,th respect to static headspace—gas chromatography (HS-GC) the theoretical background of the technique and the principles of the existing instruments are outlined. Five questions related to static HS-GC are discussed in more detail: trace analysis; ultratrace analysis with cryogenic enhancement of th