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| Авторизация |
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| Поиск по указателям |
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| Coxeter H.S.M. — The Real Projective Plane |
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| Предметный указатель |
Pliickcr, Julius 169
Point 10 100
Point at infinity 4—5 98
Point of contact 7
polar 59
Polar conic 97
Pole 59
Polygon 100 (see also Area)
Poncelet, J. V. 4 36 39 52 54 66 70 97 188 190
Pons asinorum 128
Primitive concepts 10—11
Principle of duality 13—16 66
Product of two elations 55
Product of two harmonic homologies 56
Product of two involutions 48 94—95
Product of two polarities 67
Projection (see Central projection Gnomonic Parallel Stereographic
Projective geometry 2 10 98 160
Projectivity on a conic 86 95
Projectivity on a line 42—46 151
Projectivity, relating two ranges or pencils 37 51
Quadrangle 14 25 61 73 168
Quadrangular involution 50 87
Quadrangular pencil of conics 84 178—179
Quadrangular set of points 60 61 64
Quadratic form 175
Quadratic transformation 179
Quadrilateral 14 60 74 170
Race-track 30
radius of a circle 119
Range of confocal conics 184
Range of points oil a conic 80
Range of points on a line 18
Range of polarities 00—08
ratio 103
Rational number 103 142 160 153
Ray 100
Real number 142 162—153 187
Reciprocation we a circle 92
Rectangular hyperbola 118—119 121 124 131
Reflection 129
Relatively dense set 142
Relativity 1
Reye, Theodor 111 132 135 100
Right angle 126
Right bisector of a segment 117
right triangle 117
Robinson, G. de B. 10 12 26 89 122 187 190
Robson, Alan 168 177 178 190
Rosenberg, Alex 66 90 146
Rotation 124 129
Russell, Bertrand 33 139 142 153 190
S(ABC) 26
Salmon, George 85 135 182 184 188 190
Secant 72—74
| Section of a cone 3 69 122
Section of a pencil 18
Sector of a hyperbola 182
Sector of an ellipse 181
Segment 24 33
Self-conjugate point 69—61 72
Self-dual system of conics 83—85 186 180
Self-dual system of polarities 67—68 174
Self-duality 14 66
Self-polar pentagon 64
Self-polar triangle 62—64 75
Sense 26 100 138 147
Separation 11 33 163—164 187
Serial order 99 138
Servois, F. 59
Seydewitz, Franz 76 132
Signs of coordinates 166—167
Similarity 105 120
Simson line 186
Smith, Charles 113—116 190
so 172
Staudt, G. K. C. von 10 19 36—39 46—49 52 60—62 65—66 70—75 80 87—88 101
Steinberg, Robert 26
Steiner, Jacob 69—70 76—76 81 95 131 135
Stereographic projection 122
Summation convention 167
Supplementary angles 126
Symmetry of the harmonic relation 21
Tangent of a conic 72—79 96
Transformation of coordinates 169
Transitivity of congruence 100 124
Transitivity of parallelism 98
Translation 100 106 129
Transverse axis of a hyperbola 123
triangle (see Desargues’s two-triangle theorem Diagonal Polar Self-polar
Triangle of reference 154 157 160
Triangle, circumscribed about a conic 77
Triangle, inscribed in a conic 80 96
Trilinear coordinates 184—186
Trilinear polarity 96 157
Unit line 160
Unit point 154—156 160
Vailati, Giovanni 22
Veblen, Oswald 14 19 25 26 34 36 42 48 54 58 67 92 95 100 103—109 140 145 153 158 160 165 175 190
Vector 145 169
Verner of Nuremberg 69
Vertex of a conic 123
Von Staudt (see Staudt)
Ward, D. R. 40 145 189
Weicrstrass, Karl 103 137
Whitehead, A. N. 142 190
Wo 16
Wurf 145
Young, J. W. 14 11 25 42 48 54 5
Zeuthen, H. G.p 69 142
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