Mathematik und Logik / Mathematics and Logic

Mengenlehre und Logik / Set Theory and Logic

English

Deutsch

Projektive Geometrie / Projective Geometry

Deutsch

English

The following papers are all published in: Projective Geometry and Line Geometry. Dornach: Philosophisch-Anthroposophischer Verlag am Goetheanum 2012. (Mathematisch-Astronomische Blätter, Neue Folge, Band 28).

  • Selected topics in three-dimensional projective geometry: Introduction, references and index.
    Mathematisch-Physikalische Korrespondenz 2005, 222: 31-48.
  • Selected topics in three-dimensional projective geometry, Chapter 1: Projectivities between primitive forms of one and two dimensions.
    Mathematisch-Physikalische Korrespondenz 2005, 223: 35-48.
  • Selected topics in three-dimensional projective geometry, Chapter 2: Projectivities in three-dimensional space.
    Mathematisch-Physikalische Korrespondenz 2006, 224: 33-48.
  • Selected topics in three-dimensional projective geometry, Chapter 3: Introduction to curves and surfaces in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2006, 225: 40-48.
  • Selected topics in three-dimensional projective geometry, Chapter 4: Surfaces of the second degree in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2006, 226: 20-39.
  • Selected topics in three-dimensional projective geometry, Chapter 5: Involutory collineations and polarities in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2006, 227: 23-39.
  • Selected topics in three-dimensional projective geometry, Chapter 6: Foundations of three-dimensional Euclidean and non-Euclidean geometry.
    Mathematisch-Physikalische Korrespondenz 2007, 228: 26-40.
  • Selected topics in three-dimensional projective geometry, Chapter 7: Fundamental notions of line geometry in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2007, 229: 30-40.
  • Selected topics in three-dimensional projective geometry, Chapter 8: Linear complexes of lines in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2007, 230: 42-56.
  • Selected topics in three-dimensional projective geometry, Chapter 9: Linear congruences of lines in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2007, 231: 25-40.
  • Selected topics in three-dimensional projective geometry, Chapter 10: Families of lines in three-dimensional projective space generated by collineations between bundles and fields.
    Mathematisch-Physikalische Korrespondenz 2008, 232: 25-48.
  • Selected topics in three-dimensional projective geometry, Chapter 11: Twisted cubics and cubic developables in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2008, 233: 32-48.
  • Selected topics in three-dimensional projective geometry, Chapter 12: Collineations in three-dimensional projective space: Tetrahedral Quadratic Complexes.
    Mathematisch-Physikalische Korrespondenz 2008, 234: 45-56.
  • Selected topics in three-dimensional projective geometry, Chapter 13a: Non-Euclidean, affine and Euclidean properties of linear families of lines in three-dimensional projective space, Part I.
    Mathematisch-Physikalische Korrespondenz 2008, 235: 38-48.
  • Selected topics in three-dimensional projective geometry, Chapter 13b: Non-Euclidean, affine and Euclidean properties of linear families of lines in three-dimensional projective space, Part II.
    Mathematisch-Physikalische Korrespondenz 2009, 236: 29-47.
  • Selected topics in three-dimensional projective geometry, Chapter 14: Reciprocal linear complexes in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2009, 237: 32-40.
  • Selected topics in three-dimensional projective geometry, Chapter 15: Linear manifolds of linear complexes in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2009, 238: 26-40.
  • Selected topics in three-dimensional projective geometry, Chapter 16: Two-dimensional manifolds of linear complexes and their induced polarities in three-dimensional projective space.
    Mathematisch-Physikalische Korrespondenz 2009, 239: 40-48.
  • Selected topics in three-dimensional projective geometry, Chapter 17: The five-dimensional linear manifold of linear complexes.
    Mathematisch-Physikalische Korrespondenz 2010, 240: 33-40.
  • Selected topics in three-dimensional projective geometry, Chapter 18: Fundamental Complexes.
    Mathematisch-Physikalische Korrespondenz 2010, 241: 31-40.