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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/118515
Tongues in degree 4 Blaschke products
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The goal of this paper is to investigate the family of Blasche products B_a , which is a rational family of perturbations of the doubling map. We focus on the tongue-like sets which appear in its parameter plane. We first study their basic topological properties and afterwards we investigate how bifurcations take place in a neighborhood of their tips. Finally we see how the fixed tongue extends beyond its natural domain of definition.
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CANELA SÁNCHEZ, Jordi, FAGELLA RABIONET, Núria and GARIJO REAL, Antonio. Tongues in degree 4 Blaschke products. Nonlinearity. 2016. Vol. 29, num. 3464-3495. ISSN 0951-7715. [consulted: 16 of June of 2026]. Available at: https://hdl.handle.net/2445/118515