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In mathematics a stack or 2-sheaf is, roughly speaking, a sheaf that takes values in categories rather than sets. Stacks are used to formalise some of the main constructions of descent theory , and to construct fine moduli stacks when fine moduli spaces do not exist.
The Stacks Project is an open source collaborative mathematics textbook writing project with the aim to cover "algebraic stacks and the algebraic geometry needed to define them".
Bakalli Gilman, Alfabeti i tranzicionit, European University of Tirana, UET-Press, Tiranë, 2017. The Alphabet of Transition is a collection of original essays about modern-day Albania, in which Gilman Bakalli (1967–2016) comments on a range of topics, from market forces to the role of the intellectual, from his ecological concerns to the taboo topic of blood feud.
A table of constants that includes the same approximation of the square root of 2 as YBC 7289 is the tablet YBC 7243. The constant appears on line 10 of the table along with the inscription, "the diagonal of a square". [2] [4] [5] The mathematical significance of this tablet was first recognized by Otto E. Neugebauer and Abraham Sachs in 1945.
The pages in this category are redirects from terms in the Albanian language.The language code in the |1= parameter below is essential to populate this category. To add a redirect to this category, place {{Rcat shell|{{R from alternative language|1=sq|2=(the < to > ISO 639 name code)}}}} on the second new line (skip a line) after #REDIRECT [[Target page name]].
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where f (2k−1) is the (2k − 1)th derivative of f and B 2k is the (2k)th Bernoulli number: B 2 = 1 / 6 , B 4 = − + 1 / 30 , and so on. Setting f ( x ) = x , the first derivative of f is 1, and every other term vanishes, so [ 15 ]
Wikipedia provides one of the more prominent resources on the Web for factual information about contemporary mathematics, with over 20,000 articles on mathematical topics. It is natural that many readers use Wikipedia for the purpose of self-study in mathematics and its applications. Some readers will be simultaneously studying mathematics in a ...