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Roman Kossak

Affiliations: 
City University of New York, New York, NY, United States 
Area:
Mathematics
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"Roman Kossak"
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Erez Shochat grad student 2006 CUNY
Whanki Lee grad student 2013 CUNY

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Publications

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Abdul‐Quader A, Kossak R. (2019) Neutrally expandable models of arithmetic Mathematical Logic Quarterly. 65: 212-217
Coskey S, Kossak R. (2010) The Complexity of Classification Problems for Models of Arithmetic The Bulletin of Symbolic Logic. 16: 345-358
Kossak R, Kotlarski H. (2008) More on extending automorphisms of models of Peano Arithmetic Fundamenta Mathematicae. 200: 133-143
Kossak R. (1997) Automorphisms of Recursively Saturated Models of Peano Arithmetic: Fixed Point Sets Logic Journal of the Igpl \/ Bulletin of the Igpl. 5: 787-794
Kossak R, Bamber N. (1996) On two questions concerning the automorphism groups of countable recursively saturated models of PA Archive For Mathematical Logic. 36: 73-79
Kossak R, Nadel ME, Schmerl JH. (1989) A Note on the Multiplicative Semigroup of Models of Peano Arithmetic Journal of Symbolic Logic. 54: 936-940
Kossak R. (1984) $L_{∞ ω_1}-elementary equivalence of $ω_1$-like models of PA Fundamenta Mathematicae. 123: 123-131
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