Preface |
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1 | (10) |
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1.1 Basic notions regarding graphs |
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1 | (5) |
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1.2 Basic notions regarding point-line geometries |
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6 | (5) |
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2 Some classes of point-line geometries |
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11 | (28) |
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2.1 Some easy classes of point-line geometries |
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11 | (2) |
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13 | (3) |
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2.3 Projective Grassmannians |
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16 | (1) |
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17 | (1) |
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18 | (1) |
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19 | (2) |
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2.7 Generalized quadrangles |
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21 | (1) |
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22 | (3) |
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25 | (1) |
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26 | (1) |
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2.11 Half-spin geometries |
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27 | (1) |
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28 | (1) |
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28 | (1) |
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2.14 Generalized polygons |
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29 | (1) |
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30 | (1) |
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31 | (1) |
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2.17 Semipartial geometries |
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32 | (1) |
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32 | (1) |
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2.19 Generalized Moore geometries |
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33 | (1) |
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34 | (1) |
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2.21 Inversive or Mobius planes |
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35 | (1) |
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36 | (1) |
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37 | (2) |
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3 Strongly regular and distance-regular graphs |
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39 | (22) |
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3.1 Basic properties and examples of strongly regular graphs |
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39 | (3) |
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3.2 The adjacency matrix of a strongly regular graph |
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42 | (8) |
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3.3 Distance-regular graphs |
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50 | (9) |
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3.4 Applications to point-line geometries |
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59 | (2) |
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61 | (28) |
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4.1 A characterization of finite projective planes |
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61 | (2) |
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4.2 Caps of projective spaces |
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63 | (2) |
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4.3 Ovals and hyperovals of projective planes |
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65 | (6) |
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4.4 Ovoids of 3-dimensional projective spaces |
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71 | (4) |
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4.5 Hyperplanes and projective embeddings of point-line geometries |
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75 | (3) |
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4.6 Pseudo-embeddings and pseudo-hyperplanes of point-line geometries |
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78 | (11) |
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89 | (40) |
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89 | (2) |
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91 | (4) |
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5.3 Characterizations of generalized polygons |
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95 | (5) |
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5.4 Generalized quadrangles |
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100 | (7) |
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5.5 Isomorphisms between generalized quadrangles |
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107 | (7) |
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5.5.1 Isomorphism between W(F)D and Q(4, F) |
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107 | (1) |
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5.5.2 Necessary and sufficient conditions for W(F) and Q(4, F) to be isomorphic |
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108 | (3) |
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5.5.3 Isomorphism between Q-(5, F'/F) and the point-line dual H(3, F'/F)D of H(3, F'/F) |
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111 | (3) |
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5.6 The theorem of Feit and Higman |
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114 | (6) |
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5.7 The Higman and Haemers-Roos inequalities |
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120 | (2) |
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5.8 Known orders for finite generalized polygons |
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122 | (1) |
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5.9 Ovoids in generalized quadrangles |
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123 | (6) |
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129 | (36) |
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6.1 Definition and basic notions |
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129 | (2) |
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131 | (2) |
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6.3 Near polygons with an order |
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133 | (1) |
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134 | (1) |
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134 | (4) |
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6.6 Product near polygons |
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138 | (6) |
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144 | (3) |
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6.8 The point-quad and line-quad relations |
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147 | (3) |
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150 | (8) |
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6.10 Regular near polygons |
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158 | (7) |
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165 | (86) |
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7.1 Veldkamp-Tits polar spaces |
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166 | (7) |
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7.2 Buekenhout-Shult polar spaces |
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173 | (8) |
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7.3 Quotient polar spaces |
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181 | (2) |
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7.4 A family of rank 3 polar spaces |
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183 | (5) |
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7.5 Polar spaces from sesquilinear forms |
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188 | (13) |
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7.6 Polar spaces arising from pseudo-quadrics |
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201 | (10) |
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7.7 Polar spaces having a thin line |
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211 | (7) |
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7.7.1 Direct sum of polar spaces |
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211 | (2) |
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7.7.2 Dualized projective spaces |
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213 | (5) |
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7.8 Some classes of polar spaces |
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218 | (27) |
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7.8.1 Some properties of finite fields |
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218 | (2) |
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7.8.2 Symplectic polar spaces |
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220 | (1) |
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7.8.3 Polar spaces arising from nonsingular quadrics |
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221 | (11) |
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7.8.4 Polar spaces arising from nonsingular Hermitian varieties |
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232 | (10) |
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7.8.5 Isomorphism between symplectic and parabolic polar spaces |
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242 | (1) |
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7.8.6 The generators of hyperbolic quadrics |
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243 | (2) |
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7.9 The classification of polar spaces |
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245 | (6) |
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251 | (24) |
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8.1 Basic definitions and properties |
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251 | (6) |
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8.2 Some families of dual polar spaces |
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257 | (3) |
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8.3 Cameron's characterization of dual polar spaces |
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260 | (10) |
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270 | (5) |
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275 | (28) |
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9.1 Basic definitions and properties |
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275 | (5) |
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280 | (2) |
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9.3 Hadamard matrices and designs |
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282 | (4) |
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9.4 The Bruck-Ryser-Chowla theorem for symmetric designs |
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286 | (5) |
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291 | (3) |
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9.6 Latin squares and designs |
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294 | (9) |
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9.6.1 Latin squares and quasigroups |
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294 | (3) |
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9.6.2 Mutually orthogonal latin squares and affine planes |
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297 | (2) |
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9.6.3 Steiner triple systems from commutative quasigroups |
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299 | (4) |
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303 | (52) |
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303 | (9) |
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A.2 Solutions of the problems |
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312 | (43) |
Bibliography |
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355 | (12) |
Index |
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367 | |