@article{MAKHILLJMMS20082428105,
    title = {On Properties of the Geometry D<SUB>n, n-2</SUB>},
    journal = {Journal of Modern Mathematics and Statistics},
    volume = {2},
    number = {4},
    pages = {129-133},
    year = {2008},
    issn = {1994-5388},
    doi = {jmmstat.2008.129.133},
    url = {https://makhillpublications.co/view-article.php?issn=1994-5388&doi=jmmstat.2008.129.133},
    author = {Abdelsalam Abou Zayda},
    keywords = {Parapolar space,classical polar space,strong geometry,Dn, n-2},
    abstract = {We give a general case of the geometries D<SUB>5, 3</SUB> and D<SUB>6, 4</SUB>, it is a point-line geometry of type D<SUB>n, n-2</SUB> (F), n<SUB> </SUB> 5. We present a diagram and a complete definition of all varieties of such geometry to be isomorphic to the classical polar space of type  <SUP>+</SUP> (2n, F). This study includes a characterization of the geometry and the most important properties will be investigated; we prove that the geometry is a strong parapolar with diameter equal n-1.}
    }