N
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.
Papers
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Journal ArticleDOI
Homomorphisms of Products of Graphs into Graphs Without Four Cycles
C. Delhomme,Norbert Sauer +1 more
TL;DR: It is proved that if A and B are connected graphs, each containing a triangle and if G is a -free graph with and , then G is the graph that is -free if and only if both a and c are adjacent to b and d.
Book ChapterDOI
Chromatic Numbers and Homomorphisms of Large Girth Hypergraphs
TL;DR: In this paper, the problem of determining the minimum chromatic number of graphs and hypergraphs of large girth which cannot be mapped under a homomorphism to a specified graph or hypergraph was considered.
Journal ArticleDOI
Inexhaustible homogeneous structures
TL;DR: The notions of inex exhaustible, weakly inexhaustible, age-inexhaustible and closure-ineXhaustible for countable homogenous structures are discussed and several examples show that the assumption of finite language is necessary for some of the results.
Journal ArticleDOI
Coloring ordered sets to avoid monochromatic maximal chains
TL;DR: In this article, it was shown that there is always a partition (2-coloring) of an ordered set X of so that all nontrivial maximal chains of X meet both classes (receive both colors) for all countable ordered sets and provide counterexamples of cardinality ℵ 3.