caa a22 4500 463203143 CHVBK 20180405153117.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s00200-006-0023-8 doi (NATIONALLICENCE)springer-10.1007/s00200-006-0023-8 Briand Emmanuel Dpto. Matemáticas, estadística y computación, Universidad de Cantabria, Avda. Los Castros S/N, 39005, Santander, Spain aut Equations, inequations and inequalities characterizing the configurations of two real projective conics [Elektronische Daten] [Emmanuel Briand] Couples of proper, non-empty real projective conics can be classified modulo rigid isotopy and ambient isotopy. We characterize the classes by equations, inequations and inequalities in the coefficients of the quadratic forms defining the conics. The results are well-adapted to the study of the relative position of two conics defined by equations depending on parameters. Springer-Verlag, 2006 Arrangements of conics nationallicence Rigid isotopy nationallicence Relative position of two conics nationallicence Classical invariant theory nationallicence Applicable Algebra in Engineering, Communication and Computing Springer-Verlag 18/1-2(2007-02-01), 21-52 0938-1279 18:1-2<21 2007 18 200 https://doi.org/10.1007/s00200-006-0023-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00200-006-0023-8 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Briand Emmanuel Dpto. Matemáticas, estadística y computación, Universidad de Cantabria, Avda. Los Castros S/N, 39005, Santander, Spain aut NATIONALLICENCE 773 0- Applicable Algebra in Engineering, Communication and Computing Springer-Verlag 18/1-2(2007-02-01), 21-52 0938-1279 18:1-2<21 2007 18 200 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer