All Stories

  1. Semiaffine stable planes

    Article • Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, November 2023, Springer Science + Business Media

    Markus Stroppel

  2. Linear spaces embedded into projective spaces via Baer sublines

    Article • Combinatorial Theory, March 2022, California Digital Library (CDL)

    Markus Stroppel

  3. Unitals with many involutory translations

    Article • Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, March 2022, Springer Science + Business Media

    Markus Stroppel

  4. Finite subunitals of the Hermitian unitals

    Article • Journal of Geometry, March 2022, Springer Science + Business Media

    Markus Stroppel

  5. Moufang sets generated by translations in unitals

    Article • Journal of Combinatorial Designs, November 2021, Wiley

    Markus Stroppel

  6. Embeddings and Ambient Automorphisms of the Pappus Configuration

    Article • Results in Mathematics, November 2019, Springer Science + Business Media

    Markus Stroppel

  7. Embeddings of hermitian unitals into pappian projective planes

    Article • Aequationes Mathematicae, June 2019, Springer Science + Business Media

    Markus Stroppel

  8. On elation Laguerre planes with a two-transitive orbit on the set of generators

    Article • Finite Fields and Their Applications, September 2018, Elsevier

    Markus Stroppel

  9. Transitive groups of similitudes generated by octonions

    Article • Journal of Group Theory, June 2018, De Gruyter

    Markus Stroppel

  10. Subforms of norm forms of octonion fields

    Article • Archiv der Mathematik, December 2017, Springer Science + Business Media

    Markus Stroppel

  11. Clifford parallelisms defined by octonions

    Article • Monatshefte für Mathematik, October 2017, Springer Science + Business Media

    Markus Stroppel

  12. A non-classical unital of order four with many translations

    Article • Discrete Mathematics, December 2016, Elsevier

    Markus Stroppel

  13. A memorial volume for Günter Pickert

    Article • Journal of Geometry, June 2016, Springer Science + Business Media

    Markus Stroppel

  14. Desargues configurations: minors and ambient automorphisms

    Article • Journal of Geometry, January 2016, Springer Science + Business Media

    Markus Stroppel

  15. Heisenberg groups over composition algebras

    Article • Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, December 2015, Springer Science + Business Media

    Markus Stroppel

  16. Heisenberg groups, semifields, and translation planes

    Article • Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, March 2014, Springer Science + Business Media

    Markus Stroppel

  17. Unitals over composition algebras

    Article • Forum Mathematicum, January 2014, De Gruyter

    Markus Stroppel

  18. The Reinhold Baer Colloquium on geometry

    Article • Journal of Geometry, November 2013, Springer Science + Business Media

    Markus Stroppel

  19. Simple groups acting two-transitively on the set of generators of a finite elation Laguerre plane

    Article • Beiträge zur Algebra und Geometrie / Contributions to Algebra and Geometry, September 2013, Springer Science + Business Media

    Markus Stroppel

  20. Baer involutions and polarities in Moufang planes of characteristic two

    Article • Advances in Geometry, January 2013, De Gruyter

    Markus Stroppel

  21. Stabilizers of subspaces under similitudes of the Klein quadric, and automorphisms of Heisenberg algebras

    Article • Linear Algebra and its Applications, August 2012, Elsevier

    Markus Stroppel

  22. Polarities and planar collineations of Moufang planes

    Article • Monatshefte für Mathematik, April 2012, Springer Science + Business Media

    Markus Stroppel

  23. Kernels of linear representations of Lie groups, locally compact groups, and pro-Lie Groups

    Article • Journal of Group Theory, January 2012, De Gruyter

    Markus Stroppel

  24. Kernels of linear representations of Lie groups, locally compact groups, and pro-Lie Groups

    Article • Journal of Group Theory, December 2011, De Gruyter

    Markus Stroppel

  25. Early explicit examples of non-desarguesian plane geometries

    Article • Journal of Geometry, December 2011, Springer Science + Business Media

    Markus Stroppel

  26. Polarities of Schellhammer planes

    Article • Advances in Geometry, January 2011, De Gruyter

    Markus Stroppel

  27. Non-Existence of isomorphisms between certain unitals

    Article • Designs Codes and Cryptography, September 2010, Springer Science + Business Media

    Markus Stroppel

  28. Linearly small elation quadrangles

    Article • Journal of Geometry, November 2009, Springer Science + Business Media

    Markus Stroppel

  29. Polarities of shift planes

    Article • Advances in Geometry, January 2009, De Gruyter

    Markus Stroppel

  30. Automorphisms of Hilbert's non-desarguesian affine plane and its projective closure

    Article • Advances in Geometry, January 2007, De Gruyter

    Markus Stroppel

  31. Locally Compact Groups

    Article • February 2006, European Mathematical Publishing House

    Markus Stroppel

  32. Affine parts of topological unitals

    Article • Advances in Geometry, January 2005, De Gruyter

    Markus Stroppel

  33. Polarities of Compact Eight-Dimensional Planes

    Article • Monatshefte für Mathematik, December 2004, Springer Science + Business Media

    Markus Stroppel

  34. Polar unitals in compact eight-dimensional planes

    Article • Archiv der Mathematik, August 2004, Springer Science + Business Media

    Markus Stroppel

  35. Independence of axioms for fourgonal families

    Article • Journal of Geometry, December 2001, Springer Science + Business Media

    Markus Stroppel

  36. Locally compact groups with many automorphisms

    Article • Journal of Group Theory, January 2001, De Gruyter

    Markus Stroppel

  37. Embedding Actions of Cancellative Directed Semigroups

    Article • Semigroup Forum, January 2001, Springer Science + Business Media

    Markus Stroppel

  38. The Automorphism Group of a Compact Generalized Polygon has Finite Dimension

    Article • Monatshefte für Mathematik, May 1999, Springer Science + Business Media

    Markus Stroppel

  39. Homogeneous symplectic maps and almost homogeneous Heisenberg groups

    Article • Forum Mathematicum, January 1999, De Gruyter

    Markus Stroppel

  40. Finding representatives for the orbits under the automorphism group of a bounded abelian group

    Article • Journal of Algebra, January 1999, Elsevier

    Markus Stroppel

  41. Bemerkungen zur ersten nicht desarguesschen ebenen Geometrie bei Hilbert

    Article • Journal of Geometry, November 1998, Springer Science + Business Media

    Markus Stroppel

  42. Homogeneous Locally Compact Groups

    Article • Journal of Algebra, January 1998, Elsevier

    Markus Stroppel

  43. Actions of almost simple groups on eight-dimensional stable planes

    Article • Mathematische Zeitschrift, September 1997, Springer Science + Business Media

    Markus Stroppel

  44. The skew-hyperbolic motion group of the quaternion plane

    Article • Monatshefte für Mathematik, September 1997, Springer Science + Business Media

    Markus Stroppel

  45. Point-regular geometries

    Article • Journal of Geometry, July 1997, Springer Science + Business Media

    Markus Stroppel

  46. The Semigroup of Continuous Lineations of a Stable Plane

    Article • Semigroup Forum, January 1997, Springer Science + Business Media

    Markus Stroppel

  47. Pseudo-Homogeneous Coordinates for Hughes Planes

    Article • Canadian Mathematical Bulletin, September 1996, Canadian Mathematical Society

    Markus Stroppel

  48. Locally compact groups, residual Lie groups, and varieties generated by Lie groups

    Article • Topology and its Applications, June 1996, Elsevier

    Markus Stroppel, Professor SIDNEY A MORRIS

  49. Connected Orbits in Topological Generalized Quadrangles

    Article • Results in Mathematics, May 1996, Springer Science + Business Media

    Markus Stroppel

  50. The automorphism group of a compact generalized quadrangle has finite dimension

    Article • Archiv der Mathematik, January 1996, Springer Science + Business Media

    Markus Stroppel

  51. Varieties of topological groups, Lie groups and SIN-groups

    Article • Colloquium Mathematicum, January 1996, Institute of Mathematics, Polish Academy of Sciences

    Markus Stroppel

  52. Klingenberg chain spaces

    Article • Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg, December 1995, Springer Science + Business Media

    Markus Stroppel

  53. Actions of almost simple groups on compact eight-dimensional projective planes are classical, almost

    Article • Geometriae Dedicata, November 1995, Springer Science + Business Media

    Markus Stroppel

  54. Compact Projective Planes

    Article • January 1995, De Gruyter

    Markus Stroppel

  55. Stable planes

    Article • Discrete Mathematics, May 1994, Elsevier

    Markus Stroppel

  56. Locally Compact Hughes Planes

    Article • Canadian Mathematical Bulletin, March 1994, Canadian Mathematical Society

    Markus Stroppel

  57. Slanted symplectic quadrangles

    Article • Geometriae Dedicata, February 1994, Springer Science + Business Media

    Markus Stroppel

  58. Compact groups of automorphisms of stable planes

    Article • Forum Mathematicum, January 1994, De Gruyter

    Markus Stroppel

  59. A note on Hilbert and Beltrami systems

    Article • Results in Mathematics, November 1993, Springer Science + Business Media

    Markus Stroppel

  60. Quaternion Hermitian Planes

    Article • Results in Mathematics, May 1993, Springer Science + Business Media

    Markus Stroppel

  61. A categorical glimpse at the reconstruction of geometries

    Article • Geometriae Dedicata, April 1993, Springer Science + Business Media

    Markus Stroppel

  62. Quasi-perspectivities in stable planes

    Article • Monatshefte für Mathematik, March 1993, Springer Science + Business Media

    Markus Stroppel

  63. Embedding a non-embeddable stable plane

    Article • Geometriae Dedicata, January 1993, Springer Science + Business Media

    Markus Stroppel

  64. Planar groups of automorphisms of stable planes

    Article • Journal of Geometry, July 1992, Springer Science + Business Media

    Markus Stroppel

  65. Reconstruction of incidence geometries from groups of automorphisms

    Article • Archiv der Mathematik, June 1992, Springer Science + Business Media

    Markus Stroppel

  66. On Restrictions of Automorphism Groups of Compact Projective Planes to Subplanes

    Article • Results in Mathematics, May 1992, Springer Science + Business Media

    Markus Stroppel

  67. A characterization of quaternion planes

    Article • Geometriae Dedicata, January 1990, Springer Science + Business Media

    Markus Stroppel