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a German [https://en.wikipedia.org/wiki/Topology topologist], chess player, and as [[Amazons]] programmer author of [https://www.game-ai-forum.org/icga-tournaments/program.php?id=253 Amazong],
two times Gold medal winner of the [[7th Computer Olympiad#Amazons|Computer Olympiad 2002]] and [[8th Computer Olympiad#Amazons|2003]].
Jens Lieberum received his Ph.D. in mathematics in 1998 in the field of [https://en.wikipedia.org/wiki/Knot_theory Knot theory] on the topic of [https://en.wikipedia.org/wiki/Finite_type_invariant#The_universal_Vassiliev_invariant Vassiliev invariants] <ref>[[Mathematician#VictorVassiliev|Mathematician | Victor Anatolyevich Vassiliev]]</ref> at [https://en.wikipedia.org/wiki/Louis_Pasteur_University Louis Pasteur University] , [https://en.wikipedia.org/wiki/Strasbourg Strasbourg], France, under supervision of [[Mathematician#ChristianKassel|Christian Kassel]].
He further researched and published in that field of [https://en.wikipedia.org/wiki/Knot_invariant Knot invariants] and [https://en.wikipedia.org/wiki/Knot_polynomial Knot polynomial] on [https://en.wikipedia.org/wiki/Quantum_invariant Quantum invariant],
[https://en.wikipedia.org/wiki/Quasi-bialgebra Quasi-bialgebra] and [https://en.wikipedia.org/wiki/Lie_superalgebra Lie superalgebra],
