7230 



Systems of Conies 



7230 



Envelope and locus of foci of family of conies. 



Kaufmann, G. Orv.-Termt. Ets. (Termt. 



Szak) (1898) 1-, (Ev.) 1-. 

 Equation S-\S' = 0, discussion. Picart, A. 



N. A. Mth. 14 (1875) 31-. 

 Harmonically circuminscribed conies. Taylor, 



C. QJ. Mth. 18 (1882) 50-. 

 Homographies on a conic and their linear 



systems. Aschieri, F. Mil. I. Lomb. Ed. 



22 (1889) 414-, 484-, 558-, 624-. 

 Homology of 2 conies in a plane. Laitdiero, F. 



G. Mt. 21 (1883) 217-. 

 3 homographic figures, conic of. Tarry, 



G. C. E. 94 (1882) 941-. 

 Homothetic conies. Chasles, M. Gergonne A. 



Mth. 18 (1827-28) 305-. 



. Woepcke, F. Crelle J. 53 (1857) 260-. 



. Lemonnier, H. N. A. Mth. 3 (1864) 



461-. 

 with same centre. Barbier, E. C. E. 



66 (1868) 907-. 

 , system through ends of chord of given 



conic. Serret, P. N. A. Mth. 3 (1864) 49-. 

 In- or circum-conics. Spijker, N. C. Mathesis 



15 (1895) 105-. 

 , " descriptive ' ' centres and lines of. 



Reggio, Z. Ven. I. At. 8 (1881-82) 649-. 

 In-conics of quadric surface. Cayley, A. 



Crelle J. 41 (1851) 73-. 

 Intersection of fixed conic with variable conic 



through two fixed points. Appell, P. N. 



A. Mth. 8 (1889) 48-. 

 Invariants of two conies. Kluyver, J. C. 



As. Fr. C. E. (1887) (Pt. 2) 132-. 

 Involution, conies in, special kind. Weyr, E. J. 



Prag Sb. (1876) 42-. 

 , 3 conies in. Weill, . N. A. Mth. 3 



(1884) 19-. 

 , 6 conies in, groups. Gerbaldi, F. Tor. 



Ac. Sc. At. 17 (1881) 566-. 

 Involutory position of conies touching one 



another. Weyr, E. J. Wien Ak. Sb. 83 



(1881) (Ab. 2) 63-. 

 Joachimsthal's theorem, and properties of 



system of conies. Jamet, V. Mathesis 11 



(1891) 105-. 

 Linear systems. Timerding, H. E. Gott. Nr. 



(1900) 103-. 

 Loci and envelopes, with reference to systems 



of conies. Heller, J. Arch. Mth. Ps. 7 



(1889) 325-. 

 Locus of centres of conies touching two given 



lines and passing through two given points. 



.Rom, G. de'. G. Mt. 7 (1869) 174-. 

 intersections of ellipses with certain 



diametral relations. Faure, H. N. A. Mth. 



4 (1845) 337-. 

 point of contact of tangents from point 



to system of conies. Greiner, M. Arch. 



Mth. Ps. 69 (1883) 30-. 

 Mixed ("gemischte ") system of conies S (31, Ip) 



with imaginary pair of tangents. Tesaf, J. 



[1881] Wien Ak. Sb. 84 (1882) (Ab. 2) 194-. 

 Net of conies, index 2. VaneSek, J. S. Prag 



Sb. (1886) (Mth.-Nt.) 281-, 314-. 

 4 conies, theorem. Hofmann, F. N. A. 



Mth. 1 (1882) 321-. 



Nets of conies whose Jacobian or Hermitian 



form vanishes identically. Hahn, J. Mth. 



A. 15 (1879) 111-. 

 Normals, properties relative to series of. 



Chasles, M. C. E, 72 (1871) 419-. 

 Numerical characteristics. Alekseev, V. G. 



Mosc. Un. Mm. (Ps.-Mth.) 10 (1893) 206 pp. ; 



Fschr. Mth. (1893-94) 1036-. 

 Orthoaxial conies. Salomon, A. Arch. Mth. 



Ps. 15 (1897) 1-. 

 Orthogonal conies. Taylor, H. M. QJ. Mth. 



26 (1893) 148-. 



trajectories of families of conies. Euffini, 

 F. P. Bologna Ed. 1 (1897) 62-. 



family of conies. Blutel, . Bll. 



Sc. Mth. 13 (1889) 255-. 



trajectory of all rectangular hyperbolas 

 having same asymptotes. Durrande, J. B. 

 (vi Adds.) Gergonne A. Mth. 13 (1822-23) 

 319-. 



. Querret, . 



Gergonne A. Mth. 13 (1822-23) 321-. 

 Osculating conies. Weyr, E. [1891] Prag 



Ceske Ak. Fr. Jos. Ez. (Tfida 2) 1 (1892) 



Art. 5, 14 pp. 

 Parabolic trajectories, geometry of a system. 



Habart, C. Lotos 38 (1890) 52-. 

 Pencil of conies. Meyer, M. N. A. Mth. 14 



(1895) 291-. 



. Wimdn, A. Arch. Mth. Ps. 14 



(1896) 149-. 



, conic having combinant property 

 with reference to. Mertens, F. Wien Ak. 

 Sb. 91 (1885) (Ab. 2) 637-. 



, curve connected with. Sparer, B. 

 Z. Mth. Ps. 38 (1893) 34-. 



of index 2n. Vanecek, J. S. Prag 



Sb. (1886) (Mth.-Nt.) 451-. 



with 4 real fundamental points cuts a 



straight line in a point involution. Hossfeld, 

 C. [1882] Z. Mth. Ps. 28 (1883) 51-. 



, metric formula. 



Kantor, S. [1878] Wien Ak. Sb. 78 (1879) 

 (Ab. 2) 905-. 



, reduction to pencil of rays. Tre- 



bitscher, M. [1879] Wien Ak. Sb. 80 (1880) 

 (Ab. 2) 913-. 



, symmetrical, to find the member de- 

 generating into a pair of straight lines. 

 Jarolimek, V. Prag Ceske Ak. Fr. Jos. Ez. 

 (Trida 2) 7 (1898) Art. 21, 7 pp.; Fschr. 

 Mth. (1898) 466. 



, tangential, property. Ferrers, N. M. 



Mess. Mth. 1 (1862) 159-. 



Pencils of conies. Gordon, P. Mth. A. 19 

 (1882) 529-. 



. Thompson, H. D. Am. J. Mth. 

 9 (1887) 185-. 



, Chasles's theorem afj.+pv. Hurwitz, 



A.,d- Schubert, H. Gott. Nr. (1876) 503-. 

 , constructions. Bergmann, F. [1881] 



Arch. Mth. Ps. 67 (1882) 177- ; 68 (1882) 



404-. 

 generation, new method. Vanecek, 



J. S., & Vanecek, M. N. [1885] Prag Sb. 



(1885) (Mth.-Nt.) 180- ; St Pet. Ac. Sc. Bll. 



30 (1886) 153-. 



501 



