Publications

Preprints
 The universal representation of the 3local parabolic
geometry for M(24) and for the Monster
(with A.A. Ivanov, D.V. Pasechnik).
 The Birkhoff Polytope (with C. Haase, B. Nill, A. Paffenholz), Sept. 2007, 30 pages.

In Preparation
 A characterization of L_{2}(3^{r}) and U_{3}(2^{r}).
 Flagtransitive affine dual polar spaces of O_{2n+1}(q)type,
(with S.V. Shpectorov, G. Stroth).
 The big Book of small Modules (with U. Meierfrankenfeld, G. Stroth)
 Permutation Polytopes related to a cyclic or dihedral group (with C. Haase, B. Nill, A. Paffenholz).
 Transitive permutation groups admitting a transversal which is a conjugacy class (with G. Kaplan),
Jan. 2008, 13 pages.
 The finite Bol loops of exponent 2 (with A. Stein, G. Stroth), Dec. 2008, 75 pages.
 The finite Bruck loops of exponent 2 (with A. Stein, G. Stroth), Jan. 2010, 26 pages.
 Commuting graphs of odd prime order elements in simple groups (with A. Stein), Dec. 2009, 21 pages, (submitted).
 The finite Bruck loops (with A. Stein), Aug. 2009, 21 pages (submitted).
 Csections and solvability of finite groups (with G. Kaplan), Jan. 2010, 14 pages, (submitted).
 Finite Zassenhaus Moufang sets with root groups of even order (with M. Grueninger), Feb. 2010,
25 pages.

Erschienene/ angenommene Artikel
 Selfinvariant 1Factorizations of complete graphs and finite Bol Loops of Exponent 2
(with A. Stein), 16 pages (to appear).
 On Permutation Polytopes, Advances in Mathematics 222, No. 2 (2009), 431  452.
 A method of Bender applied to groups of J_{3}type, Journal of
Group Theory 11 No. 6 (2008), 779  797.
 Constraint Satisfaction Problems, Twisted Subgroups and Transversals, accepted at the
International Symmetry Conference, Edinburgh 2007.
 A geometry for groups of J_{3}type, Archiv der Mathematik,
88 Nr. 6 (2007), 491  499.
 Regular subgroups of primitive permutation groups,
J. Algebra 310 (2007), 569  618.
 Regular subgroups of primitive permutation groups of unitary type,
Bull. Belg. Math. Soc 12 (2005), 1  17.
 On groups with subgroups of prime power index,
J. London Math. Soc. (2) 62 (2000), 407  422.
 A characterization of the Petersentype geometry of the McLaughlin group,
Math. Proc. Camb. Phil. Soc. (2000),
128, 21  44
(with A.A. Ivanov, D.V. Pasechnik).
 On flagtransitive c.c* geometries
admitting a duality, Bull. Belg. Math. Soc. 6 (1999), 443  454.
 A characterization of the finite soluble groups, Archiv der Mathematik 72 (1999), 167  176.
 Erratum: On C_{2}.Lgeometries, Geom. Dedic. 75,
No. 2 (1999), 217 (with A. Pasini).
 On the classification of flagtransitive c.c*geometries,
Geom. Dedic. 75, No. 1 (1999),
1  18 (with F. Buekenhout).
 The noncanonical gluings of two affine spaces, in: Trends in Mathematics, A. Pasini ed., pp. 9  28
(1998)
(with G. Stroth).
 On C_{2}.Lgeometries, Geom. Dedic. 71 (1998), 33  59
(with A. Pasini).
 Factorizations of primitive permutation groups,
J. Algebra 194 (1997), 631  653.
 A computer free construction of the third group
of Janko, J. Algebra, 192 (1997), 780  809.
 The universal covers of certain semibiplanes Europ. J. Combin., 18 (1997), 491  496 (with D.V. Pasechnik).
 On flat flagtransitive c.c*geometries,
J. Algebraic Combin. 6 (1997), 5  26 (with A. Pasini).
 GF(2)expansions,
Geom. Dedic. 67 (1997), 163  1997 (with T. Meixner, A. Pasini).
 The universal covers of the sporadic semibiplanes, Europ. J. Combin. 17 (1996), 595  604 (with D.V. Pasechnik).
 Flagtransitive c.Af*geometries,
Contributions to Algebra and Geom. 37 (1996), 231  258
(with A. Del Fra, T. Meixner, A. Pasini).
 Two new sporadic semibiplanes related to M_{22},
Europ. J. of Combin. 15 (1994), 325  336.
 On flagtransitive c.c*geometries, in Groups, difference sets, and the Monster, Proceedings of the
Ohio State Conference (May 1993), K.T. Arasu et al., 3  23.

Manuskript
 A characterization of the third group of Janko,
(Großteil meiner Doktorarbeit).

Schriften
 Factorizations of groups and Permutation groups, Habilitation thesis, MLU Halle, 2004
 Dual extended quadrangles  a characterization of the third group of Janko, PhDthesis, FU Berlin 1996