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Let $$H_{pqm}$$ H p q m be the space of all planar $$(p,q)$$ ( p , q ) -quasihomogeneous vector fields of weight degree $$m$$ m endowed with the coefficient topology. In this paper we characterize the set $$\Omega _{pqm}$$ Ω p q m of all vector fields in $$H_{pqm}$$ H p q m which are structurally stable with respect to perturbations in ...
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