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Canonical Partitions Of Universal Structures

✍ Scribed by C. Laflamme*; N. W. Sauer†; V. Vuksanovic

Book ID
106167589
Publisher
Springer-Verlag
Year
2006
Tongue
English
Weight
306 KB
Volume
26
Category
Article
ISSN
0209-9683

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Gδ-pieces of canonical partitions of G-s
Gδ-pieces of canonical partitions of G-spaces
✍ Barbara Majcher-Iwanow 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 205 KB

## Abstract Generalizing model companions from model theory we define companions of pieces of canonical partitions of Polish __G__‐spaces. This unifies several constructions from logic. The central problem of the paper is the existence of companions which form a __G__‐orbit which is a __G__~__δ__~‐