• On sets of points with few odd secants 

      Ball, Simeon Michael; Csajbok, Bence (2019-10-10)
      Article
      Accés obert
      We prove that, for q odd, a set of q + 2 points in the projective plane over the field with q elements has at least 2q - c odd secants, where c is a constant and an odd secant is a line incident with an odd number of points ...