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20072026
most citedGeometric and Combinatorial Structure of Hypersurface Coamoebas

13 citations · 32 across the 22 of their papers we have counts for

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8 papers · 1 filter

math.AG2026

Beyond Harnack Amoeba Boundaries

Mounir Nisse

We construct smooth irreducible plane curves whose complete amoeba contour is a smooth embedded curve equal to the amoeba boundary, although the curves are not torically equivalent…

math.AP2026

The CR Nirenberg Problem, Part II: Existence and Topological Degree

Jiechen Qiang, Zhongwei Tang, Heming Wang

This paper is a continuation of Part~I \cite{QTWPartI}, where blow-up analysis and compactness results for the CR Nirenberg problem were established. We prove some existence and de…

math.AG2026

Beyond Harnack Rigidity

Mounir Nisse

The boundary of a plane amoeba is always contained in its contour, and equality is a characteristic feature of simple Harnack curves. We show that the converse fails, even under st…

math.AG2026

On the Analyticity of Amoeba Contours

Mounir Nisse

The contour of an amoeba records the critical values of the logarithmic map and forms a fundamental interface between complex algebraic geometry and real-analytic geometry. Buildin…

math.AG2026

Cusps and nodes of Amoeba Contours

Mounir Nisse

We establish new Newton-polygon bounds for the singularities of amoeba contours of smooth plane curves. Our cusp estimate refines the degree-four bound of Lang--Shapiro--Shustin, r…

math.AG2026

Singularities of Amoeba Contours

Mounir Nisse

We give explicit real-algebraic equations for computing the singularities of amoeba contours, separating degeneracies of the logarithmic critical locus from coincidences of distinc…

math.AG2026

Sparse Bounds for Amoeba Contours

Mounir Nisse

We derive new upper bounds for the real degree of the contour of the amoeba of algebraic curves and hypersurfaces. Our approach refines the Pfaffian method of Lang--Shapiro--Shusti…

math.AG2026

Contour Degree of Amoebas of Complete Intersections

Mounir Nisse

We establish the first universal upper bounds for the real degree of the contour of the amoeba of a smooth complete intersection in the algebraic torus. Our approach extends the Pf…