منابع مشابه
Traditions and True Successors
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We show that, like singular cardinals, and weakly compact cardinals, Jensen's core model K for measures of order zero 4] calculates correctly the successors of JJ onsson cardinals, assuming O Sword does not exist. Namely, if is a JJ onsson cardinal then + = +K , provided that there is no non-trivial elementary embedding j : K ?! K. There are a number of related results in ZF C concerning P() in...
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Let κ be a singular cardinal in V , and let W ⊇ V be a model such that κ+V = λ + W for some W -cardinal λ with W |= cf(κ) 6= cf(λ). We apply Shelah’s pcf theory to study this situation, and prove the following results. 1) W is not a κ+-c.c generic extension of V . 2) There is no “good scale for κ” in V , so in particular weak forms of square must fail at κ. 3) If V |= cf(κ) = א0 then V |= “κ is...
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So far studies on language comprehension adopting the embodied and grounded perspective have underlined the similarities between language and action. In line with the idea of neural re-use, this chapter shows that language reflects some characteristics of action organization, but also that it builds on these characteristics, and modifies them in sophisticated ways. In the first part evidence is...
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Multivariate models of asset returns are very important in financial applications. Asset allocation, risk assessment and construction of an optimal portfolio require estimates of the covariance matrix between the returns of assets (see e.g. Aguilar and West (2000), Pajor (2005a, 2005b)). Similarly, hedges require a covariance matrix of all the assets in the hedge. There are two main types of vo...
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ژورنال
عنوان ژورنال: The Lancet
سال: 2019
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(18)33136-2