Canonical heights on the Jacobians of curves of genus 2 and the infinite descent
E. V. Flynn, N. P. Smart (1997)
Acta Arithmetica
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Displaying similar documents to “A binomial representation of the 3x + 1 problem”
Canonical heights on the Jacobians of curves of genus 2 and the infinite descent
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Acta Arithmetica
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Fundamenta Mathematicae
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We investigate some natural questions about the class of posets which can be embedded into ⟨ω,≤*⟩. Our main tool is a simple ccc forcing notion which generically embeds a given poset E into ⟨ω,≤*⟩ and does this in a “minimal” way (see Theorems 9.1, 10.1, 6.1 and 9.2).
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M. Stanley (1995)
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Fundamenta Mathematicae
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A dichotomy theorem for mono-unary algebras
Su Gao (2000)
Fundamenta Mathematicae
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We study the isomorphism relation of invariant Borel classes of countable mono-unary algebras and prove a strong dichotomy theorem.