On the Forms of Plane Quartic Curves ... |
Common terms and phrases
abnodal tangents Annular quartic become consecutive bicircular quartic biflecnode bifolium bitangents Bryn Mawr College bz²x² composed concurrent conic cusp is replaced cuspidal cuts the quartic cx²y² Derivative from type distinct crunodes divided tangents double-loop circuit double-odd circuit dts coincide embrassement figure four dts fundamental triangle fx²y gx²y² imaginary cusps imaginary nodes imaginary tangents Infinity cuts inner oval intersection isolated dts isolated Fig isolated tacnode Limit of type locus loop becomes evanescent node-cusp non-embayed non-isolated dts non-isolated Fig non-singular quartic odd circuits opposite signs oscnode out-cusped oval inside pass points at infinity position quadrifolium Quadrilateral quartic QUARTICS WITH THREE radicand real circuit real dts real inflexions real points real tangents right lines side singular quartics species table Art three acnodes tricrunodal Trilateral quartic triple point type 19 type 37 type 44 typical projections unicursal quartics unifolia unifolium vertex between trifolium Zeuthen Туре