TY - JOUR
T1 - On cuts in ultraproducts of linear orders i
AU - Golshani, Mohammad
AU - Shelah, Saharon
N1 - Publisher Copyright:
© 2016 World Scientific Publishing Company.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - For an ultrafilter D on a cardinal κ, we wonder for which pair (θ1, θ2) of regular cardinals, we have: for any (θ1 + θ2)+-saturated dense linear order J, Jκ/D has a cut of cofinality (θ1, θ2). We deal mainly with the case θ1, θ2 > 2κ.
AB - For an ultrafilter D on a cardinal κ, we wonder for which pair (θ1, θ2) of regular cardinals, we have: for any (θ1 + θ2)+-saturated dense linear order J, Jκ/D has a cut of cofinality (θ1, θ2). We deal mainly with the case θ1, θ2 > 2κ.
KW - cuts
KW - saturated linear orders
KW - Ultraproduct
UR - http://www.scopus.com/inward/record.url?scp=84991270610&partnerID=8YFLogxK
U2 - 10.1142/S0219061316500082
DO - 10.1142/S0219061316500082
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AN - SCOPUS:84991270610
SN - 0219-0613
VL - 16
JO - Journal of Mathematical Logic
JF - Journal of Mathematical Logic
IS - 2
M1 - 1650008
ER -