8100 



Algebraic Configurations in Hyperspace 



8100 



Fresnel surface. Schoute, P. H. N. Arch. 



Wisk. 3 (1898) 239-; Fschr. Mth. (1897) 



587-; Edinb. Mth. S. P. 16 (1898) 51-. 

 Homographic pencils, properties in linear 



spaces. Enriques, F. Rm. R. Ac. Line. 



Bd. 6 (1890) (Sem. 2) 63-. 

 Homographies. Predella, P. A. Mt. 17 (1889- 



90) 113-. 

 , binary and ternary. Aschieri, F. Mil. I. 



Lomb. Ed. 24 (1891) 278-. 

 , cyclic. Enriques, F. G. Mt. 30 (1892) 311-. 

 , harmonic, in linear spaces. Enriques, F. 



G. Mt. 30 (1892) 319-. 



and interchangeable relations. Del Prete, 

 G. G. Mt. 37 (1899) 107- ; 38 (1900) 40-. 



, involutory, in linear space. Bertini, E. 



Mil. I. Lomb. Ed. 19 (1886) 176-. 

 in linear space, theory and classification. 



Segre, C. Em. E. Ac. Line. Mm. 19 (1884) 



127-. 

 Homography. Bordiga, G. Yen. I. At. (1896- 



97) 1091-. 

 , fundamental spaces. Segre, C. Em. E. 



Ac. Line. Ed. 2 (1886) (Sem. 1) 325-. 

 + 2 hyperspheres, circumscribing prismatoids 



formed by n + 2 hyperplanes, meet in point. 



Kuhne, H. Crelle J. Mth. 119 (1898) 186-. 

 Hypersurfaces of S r with same 1st polars, 



systems. Bertini, E. Em. E. Ac. Line. 



Rd. 7 (1898) (Sem. 2) 217-, 275-, 357. 

 Indeterminate equations and n-dimensional 



geometry. Brunei, G. Bordeaux S. Sc. 



Mm. 2 (1886) 129-. 

 Intersection of 2 varieties, order. Fieri, M. 



G. Mt. 26 (1888) 251-. 

 in a simply infinite variety of space. 



Levi, B. Tor. Ac. Sc. At. 34(1898) 581-or745-. 

 Involutes of helices, generalisation. Piccioli, 



H. N. A. Mth. 18 (1899) 132-. 

 Involution. Castelnuovo, G. Ven. I. At. (1885- 



86) 1167-. 



in connection with algebraic forms. Deruyts, 

 F. Brux. Ac. BH. 14 (1887) 650-. 



, neutral elements. Deruyts, F. Brux. Ac. 



Bll. 36 (1898) 187-. 

 , , and their application to skew curves. 



Deruyts, F. Brux. Ac. Bll. 35 (1898) 885-. 



on rational base, neutral groups with 

 multiple elements in. Severi, F. Em. R. 

 Ac. Line. Rd. 9 (1900) (-Sem. 1) 379-. 



Involutions, groups of elements common to 2. 



Deruyts, F. Brux. Ac. Bll. 31 (1896) 664-. 

 , points common to 2. Le Paige, C. 



Brux. Ac. Bll. 11 (1886) 121-. 

 , neutral elements. Le Paige, C. Brux. Ac. 



Bll. 14 (1887) 211-. 

 , common to 2, groups. Deruyts, F. 



Brux. Ac. Bll. 26 (1893) 232-. 

 , any number, groups. Deruyts, 



F. Brux. Ac. Bll. 27 (1894) 495-. 

 , unicursal, neutral groups of elements. 



Deruyts, F. Brux. Ac. Bll. 35 (1898) 196-. 

 , , representation. Deruyts, F. Brux. Ac. 



Bll. 14 (1887) 322-. 

 Jacobian locus in hyper-geometry. Schoute, 



P. H. L. Mth. S. P. 30 (1899) 322-. 

 Rummer's surface, analogue tor p = 3. Wirt- 



inger, W. Gott. Nr. (1889) 474-. 



Line geometry. Schubert, H. Hamb. Mth. 



Gs. Mt. 3 (1900) 86-. 

 Linear spaces, geometry. Bertini, E. Mil. I. 



Lomb. Rd. 19 (1886) 855-. 



of 4th species, spaces composed of. 

 Aschieri, F. Mil. I. Lomb. Rd. 19 (1886) 

 614-, 698-. 



systems. Bertini, E. [1880] Mil. I. Lomb. 

 Rd. 15 (1882) 24-. 



, order of variety arising from several. 

 Fieri, M. Palermo Cir. Mt. Rd. 11 (1897) 

 58. 



of varieties in relation to birational trans- 

 formations. Palatini, F. G. Mt. 38 (1900) 

 315-. 



varieties, complexes, congruences. Zindler, 

 K. Wien Ak. Sb. 101 (1892) (Ab. 2a) 215-. 



, synthetic construction. Zindler, K. 

 Crelle J. Mth. Ill (1893) 303-. 



Lines, surfaces, and higher configurations in 

 multiply extended Gaussian and Riemannian 

 spaces. Schering, E. Gott. Nr. (1873) 13-. 



Multiple tangents. Schubert, H. Mth. A. 26 



(1886) 52-. 



Normal curves of genus p of various spaces. 



Segre, C. Mil. I. Lomb. Ed. 21 (1888) 



523-. 

 linear spaces, property common to. 



Deruyts, F. Brux. Ac. Bll. 17 (1889) 545-. 



lines of spaces of odd number of dimensions, 

 general theorem. Cassani, P. Em. R. Ac. 

 Line. Rd. 2 (1886) (Sem. 1) 482-. 



Pencil of quadrics, linear spaces of maximum 



dimension associated with. Eosati, C. Mil. 



I. Lomb. Rd. 32 (1899) 1267-. 

 of space S n , quartic base, representation 



in S n _ 2 . Rosati, C. A. Mt. 1 (1898) 25-. 

 Pencils of quadrics. Bertini, E. Rm. R. Ac. 



Line. Rd. 2 (1886) (Sem. 2) 208-. 

 Point aggregates in continuous space. Cantor, 



G. Acta Mth. 2 (1883) 409- ; 7 (1885) 105-. 



groups of linear space. Chizzoni, F. Nap. 

 Ac. At. 5 (1893) No. 1, 28 pp. 



, regular, and the appropriate linear sub- 

 stitutions. Biermann, O. Wien Ak. Sb. 95 



(1887) (Ab. 2) 523-. 



pairs, oo n algebraic series. Pieri, M. 

 Palermo Cir. Mt. Rd. 5 (1891) 252-. 



1 oo (*+i) (-*), coincidences in r-dimensional 



space. Severi, F. Rm. R. Ac. Line. Rd. 9 



(1900) (Sem. 2) 321-. 

 Polar properties of algebraic varieties, geometric 



method. Rodenberg, C. Mth. A. 26 (1886) 



557-. 



triangles, 2, lie in perspective, extension of 

 theorem. Schlafli, L. [1865] Crelle J. 65 

 (1866) 189-. 



Polarity. Bordiga, G. A. Ven. I. At. (1884- 

 85) 2097-. 



Polars, theorem. Brambilla, A. Tor. Ac. Sc. 

 At. 22 (1886-87) 787-. 



Poncelet-Zeuthen polygons inscribed in p-ary 

 quadric. Voss, A. Mth. A. 26 (1886) 231-. 



Projection of 4-fold figures upon a three-flat. 

 Hall, T. P. Am. J. Mth. 15 (1893) 179-. 



Projections of surface and variety of n dimen- 

 sions. Del Pezzo, P. Nap. Rd. 25 (1886) 

 205-. 



587 



