Patchworking algebraic curves disproves the Ragsdale conjecture

Itenberg, Ilia; Viro, Oleg
September 1996
Mathematical Intelligencer;Fall96, Vol. 18 Issue 4, p19
Academic Journal
Shows how to build algebraic curves in a combinatorial fashion. Initial data; Construction of a piecewise linear curve; Real plane algebraic curves; T-curves; Ragsdale conjecture; Patchworking Harnack curves; Counterexamples to Ragsdale conjecture.


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