Irina Gelbukh

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On a smooth closed n-manifold, we consider Morse forms with wedge-product zero; we call such forms collinear. This is an equivalence relation. Collinearity classes are classified by the underlying(More)
Given a Morse function f over a 2-manifold with or without boundary, the Reeb graph is obtained by contracting the connected components of the level sets to points. We prove tight upper and lower(More)
We study one-forms with zero wedge-product, which we call ollinear, and their foliations. We characterise the set of forms that define a given foliation, w ith special attention to closed forms and(More)