Definable davies' theorem

TY - JOUR

T1 - Definable davies' theorem

AU - Törnquist, Asger Dag

AU - Weiss, W.

PY - 2009/1/1

Y1 - 2009/1/1

N2 - We prove the following descriptive set-theoretic analogue of a theorem of R. 0. Davies: Every σ function f:ℝ × ℝ → ℝ can be represented as a sum of rectangular Σ functions if and only if all reals are constructible.

AB - We prove the following descriptive set-theoretic analogue of a theorem of R. 0. Davies: Every σ function f:ℝ × ℝ → ℝ can be represented as a sum of rectangular Σ functions if and only if all reals are constructible.

UR - http://www.scopus.com/inward/record.url?scp=73949135445&partnerID=8YFLogxK

U2 - 10.4064/fm205-1-4

DO - 10.4064/fm205-1-4

M3 - Journal article

AN - SCOPUS:73949135445

SN - 0016-2736

VL - 205

SP - 77

EP - 89

JO - Fundamenta Mathematicae

JF - Fundamenta Mathematicae

IS - 1

ER -