List of Publications

Books and Lecture Notes

1. Theory of K-loops. Lecture Notes in Mathematics 1778, Springer Verlag (2002) (Extended version of 20.). (Zbl. 0997.20059; MR 2003d:20109)
2. Geometrie, Skriptum 2006/07
3. Für Studierende der Lehrämter Primar- und Sekundarstufe I sowie Sonderschulen
   • Grundlagen der Mathematik, Skriptum 2015/16
   • Lineare Algebra und Analytische Geometrie, Skriptum 2016
   • Grundbildung Analysis, Skriptum 2013/14
   • Grundbildung Geometrie, Skriptum 2012
4. (with Christian Karpfinger ) Kryptologie -- Algebraische Methoden und Algorithmen, Vieweg+Teubner Verlag 2010.

Refereed Articles

1. Bemerkungen zu einer Klasse kommutativer Inzidenzgruppen. Resultate Math. 18 (1990), 264-272. (Zbl. 717.51012; MR 92a:51019)
2. Der Kern einer automorphen Ableitung und eine Anwendung auf normale Teilkörper verallgemeinerter André-Systeme. Arch. Math. (Basel) 58 (1992), 514-520. (Zbl. 725.12006, 755.12006; MR 93e:51004)
3. Lokal endliche André-Systeme. J. Geom. 41 (1991), 79-93. (Zbl. 734.51003; MR 92i:51004)
4. Erweiterungen lokal endlicher André-Systeme. Abh. Math. Sem. Univ. Hamburg 62 (1992), 147-161. (Zbl. 783.51003; MR 93i:51004)
5. g-Quasikörper. Resultate Math. 23 (1993), 121-148. (Zbl. 771.12004; MR 94e:12008)
6. Affine Configurations Sharing Pencils of Lines. Proc. Conf. on Nearrings and Nearfields (Linz, July 14-20, 1991). Contributions to General Algebra 8 (1992), 111-116. (Zbl. 770.51002; MR 95f:51001)
7. (with Wen-Fong Ke) Combinatorial Properties of Ring Generated Circular Planar Nearrings. J. Combin. Theory Ser. A 73 (1996), 286-301. (Zbl. 960.12017; MR 97c:16054)
8. (with Wen-Fong Ke) Automorphisms of Certain Design Groups. J. Algebra 167 (1994), 488-500. (Zbl. 806.05023; MR 95h:05022)
9. (with Wen-Fong Ke) On the Solutions of the Equation x^m+y^m-z^m = 1 in a Finite Field. Proc. Amer. Math. Soc. 123 (1995), 1331-1339. (Zbl. 950.34420; MR 95f:11023)
10. (with Wen-Fong Ke) Characterization of Some Finite Ferrero Pairs. Proc. Conf. on Nearrings and Nearfields (Fredericton, NB, Canada, July 18-23, 1993). Kluwer Acad. Publ. 1995, 153-160. (Zbl. 960.05931; MR )
11. (with James R. Clay) Linear Codes from Planar Nearrings and Möbius Planes. Algebras Groups Geom. 10 (1993), 333-344. (Zbl. 792.05019; MR 94k:51006)
12. Points on Fermat Curves over Finite Fields. Contemporary Math. 168 (1994), 181-183. (Zbl. 813.14017; MR 95i:11061)
13. Separating Subspaces of Skewfields. Resultate Math. 28 (1995), 117-118. (Zbl. 829.12001; MR 96d:12003)
14. Some K-Loops with Fixed Point Free Precession-Maps. Beiträge zur Geometrie und Algebra 27 (1994), 29-34, TUM-M9414.
15. (with Angelika Konrad) The Structure Group of Certain K-Loops. Proc. Conf. on Nearrings and Nearfields (Hamburg, 30. Juli - 6. August, 1995). Kluwer Acad. Publ. 1997, 287-294. (Zbl. 0887.20036; MR 98i:16002)}
    Preprint: Beiträge zur Geometrie und Algebra 33 (1995), 34-40, TUM-M9509.
16. (with J. Chris Fisher and Helmut Karzel) Bundles of Conics Derived from Planar Projective Incidence Groups. J. Geom. 59 (1997), 34-45. (Zbl. 0882.51001; MR 96d:51026)
17. K-Loops from Classical Groups over Ordered Fields. J. Geom. 61 (1998), 105-127. (Zbl. 0904.20051; MR 96d:20072)
    Preprint (Sect's 1-4): K-Loops from Matrix Groups over Ordered Fields. Beiträge zur Geometrie und Algebra 33 (1995), 23-33, TUM-M9509.
18. Frobenius Groups with Many Involutions. Discrete Math. 255 (2002), 235-247. (Zbl. 1012.20066; MR 2003k:20004)
19. (with Alexander Kreuzer and Heinrich Wefelscheid) Das Forschungsgebiet ``Grundlagen der Geometrie'' seit Hilbert. Anhang zu David Hilbert: Grundlagen der Geometrie, 14. Auflage, neu herausgegeben von Michael Toepell, Teubner, Stuttgart 1999. (Zbl. 0933.01031)
20. Relatives of K-loops: Theory and Examples. Comment. Math. Univ. Carolinae 41 (2000), 301-323. (Zbl. 1038.20049; MR 2002e:20143)
21. (with Kostia I. Beidar and Wen-Fong Ke) Circularity of finite groups without fixed points. Monatsh. Math. 144 (2005), 265-273. (Zbl. 1081.20036; MR 2006b:20030)
22. (with Gábor Nagy) On the extension of involutorial Bol loops. Abh. Math. Sem. Univ. Hamburg 72 (2002), 235-250. (Zbl. 1016.20051; MR 2003m:20095)
23. (with Michael K. Kinyon) Infinite simple Bol loops. Comment. Math. Univ. Carolinae 45 (2004), 275-278.
24. (with Kostia I. Beidar and Wen-Fong Ke) Automorphisms of Certain Design Groups II. J. Algebra 313 (2007), 672-686.
25. Zero Knowledge oder Können Sie ein Geheimnis für sich behalten? Mitt. Math. Univ. Hamburg 30 (2011), 43-53.
26. (with Wen-Fong Ke, Günter Pilz, and Gerhard Wendt) Planar nearrings on the Euclidean plane. J. Geom. 105 (2014), 577-599.
27. (with Wen-Fong Ke, Günter Pilz, and Gerhard Wendt) Semi-homogeneous maps. Contemporary Math. 658 (2016), 187-196.

I'll be happy to provide (p)reprints: