| Popis: |
This paper continues the discussion of the existence problem of configurations (vr, bk) started in [11] and [13]. It is concentrated on configurations with deficiencies 1 and 2 including also symmetric configurations. The existence of many non-symmetric configurations with k = 4 is proved, especially of those with small deficiencies. The results are obtained by either collecting results about divisible designs, regular packings of complete graphs and resolvable configurations or by applying special techniques to construct new configurations. A classification of configurations (125, 203) and (146, 283) is also included. |
