STRUCTURE THEORY OF L(ℝ, μ) AND ITS APPLICATIONS
STRUCTURE THEORY OF L(ℝ, μ) AND ITS APPLICATIONS
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L(ℝ,μ)的结构理论及其应用
DOI:
10.1017/jsl.2014.65
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发表时间:
2015
期刊:
影响因子:
--
通讯作者:
Nam Trang
中科院分区:
文献类型:
--
作者:
Nam Trang
Abstract In this paper, we explore the structure theory of L(ℝ, μ) under the hypothesis L(ℝ, μ) ⊧ “AD + μ is a normal fine measure on ” and give some applications. First we show that “ ZFC + there exist ω2 Woodin cardinals”1 has the same consistency strength as “ AD + ω1 is ℝ-supercompact”. During this process we show that if L(ℝ, μ) ⊧ AD then in fact L(ℝ, μ) ⊧ AD+. Next we prove important properties of L(ℝ, μ) including Σ1 -reflection and the uniqueness of μ in L(ℝ, μ). Then we give the computation of full HOD in L(ℝ, μ). Finally, we use Σ1 -reflection and ℙmax forcing to construct a certain ideal on (or equivalently on in this situation) that has the same consistency strength as “ZFC+ there exist ω2 Woodin cardinals.”