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Norbert Sauer
Researcher at University of Calgary
Publications - 112
Citations - 3085
Norbert Sauer is an academic researcher from University of Calgary. The author has contributed to research in topics: Countable set & Metric space. The author has an hindex of 22, co-authored 111 publications receiving 2801 citations. Previous affiliations of Norbert Sauer include Emory University & University of La Réunion.
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Invariant subsets of scattered trees. An application to the tree alternative property of Bonato and Tardif
TL;DR: In this article, it was shown that the tree alternative property conjecture of Bonato and Tardif holds for scattered trees and a conjecture of Tyomkin holds for locally finite scattered trees.
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Representation of ideals of relational structures
TL;DR: In this paper, Cusin and Pabion give an example of an ideal of isomorphism types of at most countable structures whose signature consists of a single ternary relation symbol.
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The Order on the Rationals has an Orthogonal Order with the Same Order Type
Norbert Sauer,Imed Zaguia +1 more
TL;DR: Two orders on the same set are orthogonal if the constant maps and the identity map are the only maps preserving both orders.
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Representation of ideals of relational structures
TL;DR: It is shown that if the structures have infinitely many relations and if, among those, infinitely many are at least binary then there are ideals which do not come from an age, and there is an ideal I of isomorphism types of at most countable structures whose signature consists of a single ternary relation symbol such that I does notCome from the set age.
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Partitions and Indivisibility Properties of Countable Dimensional Vector Spaces
TL;DR: This work investigates infinite versions of vector and affine space partition results, and provides examples and a counterexample for a partition problem for relational structures and provides two (related) examples of an age indivisible relational structure which is not weaklyIndivisible.