Statistics
Publications
16
Citations
3.5K
H-Index
13
Active since
1959
Affiliations
K. I. Appel is an author at University of Illinois System specializing in natural sciences, mathematics, and combinatorics.
Publications per year
1959–1986
16
16
The Solution of the Four-Color-Map Problem
K. I. Appel, Wolfgang Haken · Scientific American · 1977 · 425 citations
Artin groups and infinite Coxeter groups
K. I. Appel, Paul E. Schupp · Inventiones mathematicae · 1983 · 99 citations
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