The sigma-core of convex games and the problem of measure extension

1990 ◽  
Vol 66 (1) ◽  
pp. 97-108 ◽  
Author(s):  
Jürgen Kindler
2004 ◽  
Vol 11 (3) ◽  
pp. 479-487
Author(s):  
A. Kharazishvili

Abstract The notions of a negligible set and of an absolutely nonmeasurable set are introduced and discussed in connection with the measure extension problem. In particular, it is demonstrated that there exist subsets of the plane 𝐑2 which are 𝑇2-negligible and, simultaneously, 𝐺-absolutely nonmeasurable. Here 𝑇2 denotes the group of all translations of 𝐑2 and 𝐺 denotes the group generated by {𝑔} ∪ 𝑇2, where 𝑔 is an arbitrary rotation of 𝐑2 distinct from the identity transformation and all central symmetries of 𝐑2.


2012 ◽  
Vol 225 (1) ◽  
pp. 83-89
Author(s):  
Jesús Getán ◽  
Josep M. Izquierdo ◽  
Jesús Montes ◽  
Carles Rafels

2019 ◽  
Vol 64 (4) ◽  
pp. 1426-1439 ◽  
Author(s):  
Tatiana Tatarenko ◽  
Maryam Kamgarpour

2004 ◽  
Vol 06 (04) ◽  
pp. 555-559
Author(s):  
YAN-AN HWANG
Keyword(s):  

We will find 3 maximal subclasses with respect to essential, superadditive and convex games, respectively such that a game is in one subclass, so are its reduced games.


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