Let G be an Abelian group and let μ: A → G and ν: B → G be finitely additive measures (charges) defined on fields A and B of subsets of a set X. It is assumed that μ and ν agree on A ∩ B, i.e. they are consistent. The existence of common extensions of μ and ν is investigated, and conditions on A and B facilitating such extensions are given.
@article{bwmeta1.element.bwnjournal-article-fmv146i1p1bwm, author = {R\"udiger G\"obel and R. Shortt}, title = {Algebraic ramifications of the common extension problem for group-valued measures}, journal = {Fundamenta Mathematicae}, volume = {144}, year = {1994}, pages = {1-20}, zbl = {0851.28007}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv146i1p1bwm} }
Göbel, Rüdiger; Shortt, R. Algebraic ramifications of the common extension problem for group-valued measures. Fundamenta Mathematicae, Tome 144 (1994) pp. 1-20. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv146i1p1bwm/
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