8450 



Surface of Centres. Surfaces 



8450 



Kuled surface, line of striction for which is 

 also line of curvature. Hoppe, R. Arch. 

 Mth. Ps. 15 (1897) 251-. 



surfaces passing through given curve. 

 Bioche, C. C. R. 110 (1890) 515-. 



Section made in surface by tangent plane, 



curvature. La Gournerie, J. de. Liouv. J. 



Mth. 3 (1858) 73-. 

 Series of surfaces and lines, curvature. Hirst, 



T. A. Tortolini A. 2 (1859) 95-, 148-. 

 Skew hyperboloid, locus of points at which 



/>j, p.-, are equal. Bruno, G. Tor. At. Ac. Sc. 



6 (1870-71) 133-. 

 Spherical lines on surfaces. Pirondini, G. 



G. Teix. J. Sc. 9 (1889) 65-. 



representation, Gauss's. Ruffini, F. P. 

 Bologna Ac. Sc. Mn>. 8 (1887) 661-. 



Spheroids and surfaces generally, curvature. 



Naccari, G. Yen. Aten. 1 (1893) 237-; 2 



(1893) 133-. 

 Sub-normals, polar, and curvature of surfaces. 



Ghysens, E. Brux. Ac. Bll. 44 (1877) 220-. 



Surface of centres. 



Codazzi, D. Tortolini A. 8 (1857) 129-. 

 Curtis, A. H. Liouv. J. Mth. 3 (1858) 79-. 

 Darboux, G. C. E. 70 (1870) 1328- ; 71 (1870) 



267-. 



Catalan, E. C. C. E. 71 (1870) 50-. 

 Backlund, A. V. Stockh. Ofv. 29 (No. 8) 



(1872) 3-. 



Halphen, G. H. G. E. 80 (1875) 258-. 

 Voss, A. E. Mth. A. 16 (1880) 560-. 

 developable. Hoppe, R. Arch. Mth. Ps. 63 



(1879) 205-. 

 of ellipsoid. Darboux, G. Bll. Sc. Mth. As. 



3 (1872) 122-. 



, equation. Salmon, G. QJ. Mth. 2 

 (1858) 217-. 



elliptic paraboloid. Caspary, F. [1875] 

 Crelle J. Mth. 81 (1876) 143-. 



with lines of curvature plane. Bonnet, O. 



C. E. 36 (1853) 1046-. 

 projective. Voss, A. Munch. Ak. Ab. 16 



(1888) 243-. 

 of quadric, bitangents to. Laguerre, E. C. E. 



78 (1874) 556-. 



of constant curvature, application of calculus 



of variations to demonstration of sum of 



angles of geodesic triangles on. Sabinin, E. 



Eec. Mth. (Moscou) 21 (1901) 54-; Fschr. 



Mth. (1900) 476. 

 , functions. Dobriner, H. 



Acta Mth. 9 (1887) 73-. 

 , transformations. Bianchi, L. A. Mt. 



3 (1899) 185-. 

 mean curvature. Jellett, J. H. Liouv. 



J. Mth. 18 (1853) 163-. 

 negative curvature. Bianchi, L. Mth. 



A. 16 (1880) 577-. 

 positive curvature. Bianchi, L. G. Mt. 



20 (1882) 287-. 

 containing centres of one curvature. Binet, 



J. P. M. Liouv. J. Mth. 6 (1841) 61- ; C. E. 



12 (1841) 435-. 

 determination of form by local measurements. 



Christoffel, E. B. [1864] Crelle J. 64 (1865) 



193-. 

 envelopes of planes cutting off constant volume. 



Padula, F. Nap. Mm. Ac. Sc. 2 (1855-57) 



308-. 

 generation, cases. Curtis, A. H. (n) Mess. 



Mth. 2 (1864) 76-. 

 with given surface of centres, and curvature 



relation. August, F. Arch. Mth. Ps. 68 



(1882) 315-. 

 inverse to Cayley's cylindroid. Janisch, E. 



Mh. Mth. Ps. 8 (1897) 278-. 

 , relation between curvatures. Demoulin, A. 



Bll. Sc. Mth. 16 (1892) 268-. 

 loci of centres of curvature, theory. Lilienthal, 



JR. von. Mth. A. 30 (1887) 1-. 

 with multiple points. Skew curve of 3rd 



degree, osculating sphere. Saltel, L. Brux. 



Ac. Bll. 35 (1873) 539-. 

 of negative curvature and their geodesies. Ha- 



damard, . Liouv. J. Mth. 4 (1898) 27-. 

 non - spherical, application of spherometer. 



Larmor, J. Camb. Ph. S. P. 7 (1892) 327-. 

 parabolic points. Salmon, G. Camb. and 



Dubl. Mth. J. 2 (1847) 74-. 

 of positive curvature, minimum of angle be- 

 tween two conjugate tangents on. Hoppe, R. 



Arch. Mth. Ps. 69 (1883) 19-. 

 with radii of curvature equal and opposite. 



Padula, F. Nap. Ed. 1 (1852) 76-. 



;__. Purser, F. QJ. Mth. 13 (1875) __ _ _'_ ___*_. Catalan, ~E. C. C. E. 



338-. 

 , expressed as contravariant of two 



quaternary forms. Bjorling, C. F. E. 



Stockh. Ofv. 34 (1877) No. 4, 3-. 

 relation between curvature elements of two 



sheets. Mannheim, A. C. E. 74 (1872) 



458-; 79 (1874) 1328-. 



Surfaces. 



of buoyancy. Saint Germain, A. de. Par. S. 



Mth. Bll. 3 (1875) 37-. 

 canal. Bertrand, J. Liouv. J. Mth. 13 (1848) 



73-. 

 of constant curvature. Minding, E. F. A. 



Crelle J. 19 (1839) 370-. 

 . Bukrejew, B. Fschr. Mth. (1897) 



546. 



41 (1855) 35-, 274-, 1019- ; Par. EC. Pol. J. 



37 e cah. (1858) 129-. 

 reciprocal, curvature. Franke, J. N. Liouv. 



J. Mth. 3 (1877) 415-. 

 of revolution, construction from fragment. 



Barbarin, P. As. Fr. C. E. (1887) (Pt. 2) 



123-. 

 , curvature of geodesies. Resal, H. N. A. 



Mth. 6 (1887) 57-. 

 ruled, theory. Bonnet, 0. C. E. 46 (1858) 



906-. 

 screw, constructions for indicatrix. Sobotka, J. 



Wien Ak. Sb. 102 (1893) (Ab. 2a) 1204-. 

 sections, curvature. Grunert, J. A. Arch. 



Mth. Ps. 41 (1864) 241-. 

 and skew curves, theory, historic development. 



Christensen, S. A. (xn) Ts. Mth. 1 (1883) 



97-. 



615 



