The classifiction of M-curves of bidegree (d,3) in the torus

dc.contributor.committeeChairKorchagin, Anatoly
dc.contributor.committeeMemberWeinberg, David A.
dc.contributor.committeeMemberWang, Alex
dc.creatorWilliams, Lina Mabel
dc.date.accessioned2016-11-14T23:13:03Z
dc.date.available2012-06-01T15:42:28Z
dc.date.available2016-11-14T23:13:03Z
dc.date.issued2005-05
dc.degree.departmentMathematics
dc.description.abstractThe classification, up to homeomorphism, of real algebraic curves in the projective plane was the first part of Hilbert's sixteenth problem. We provide a classification for a new family of curves in the torus. More precisely, a real homogeneous polynomial f(u,v,x,y) is said to be of bidegree (d,e) if it is homogeneous of degree d (resp. e) with respect to the variables (u,v) (resp. (x,y)). Such polynomials then have naturally defined zero sets on the torus T, provided one realizes T as the product of two real projective lines. The real zero set of f in T is then said to be an M-curve of bidegree (d,e) if it has maximally many real connected components. We completely classify all M-curves of bidegree (d,3) on the torus. In particular, we show that for any integer d (with d>=2), there are M-curves of bidegree (d,3) realizing the class 2(d-1) O + <a+nb> in H_1(T), where O is homologous to 0, a and b are the generators of H_1(T), and n<=d is any integer with the same parity as d.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/2346/1000
dc.language.isoeng
dc.rights.availabilityUnrestricted.
dc.subjectNonsingular
dc.subjectIsotopy
dc.subjectBranch
dc.subjectOvals
dc.subjectM-Curve
dc.subjectBidegree
dc.titleThe classifiction of M-curves of bidegree (d,3) in the torus
dc.typeThesis

Files