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Construction of isolated left orderings via partially central cyclic amalgamation
Orderable groups isolated ordering Group Theory
2011/8/24
Abstract: We give a new method to construct isolated left orderings of groups by means of amalgamated free products, which provides a lot of new examples of isolated left orderings. We construct an is...
Elementary construction of some Jenkins-Strebel differentials
Elementary construction Jenkins-Strebel differentials
2011/2/24
The behavior of trajectories of a regular quadratic differential on a Riemann surface is chaotic but in one case.
A combinatorial construction of symplectic expansions
combinatorial construction symplectic expansions
2010/12/3
The notion of a symplectic expansion directly relates the topology of a surface to formal symplectic geometry. We give a method to construct a symplectic expansion by solving a recurrence formula give...