Pranav Chakravarthy

collaborators

5 papers

math.SG2026

Almost toric fibrations on K3 surfaces via degenerations

Pranav Chakravarthy, Yoel Groman

For KÃ¤hler K3 surfaces we consider Kulikov models of type III tamed by a symplectic form. Our main result shows that the generic smooth fiber admits an almost toric fibration over…

math.SG2026

Non-squeezing and other global rigidity results in locally conformal symplectic geometry

MÃ©lanie Bertelson, Pranav Chakravarthy, Sheila Sandon

Using generating functions quadratic at infinity for Lagrangian submanifolds of twisted cotangent bundles, we define spectral selectors for compactly supported lcs Hamiltonian diff…

math.SG2025

Centralizers of Hamiltonian finite cyclic group actions on rational ruled surfaces

Pranav V. Chakravarthy, Martin Pinsonnault

Let $M = (M, I ¨ )$ be either the product $S^{2} \times S^{2}$ or the non-trivial $S^{2}$ bundle over $S^{2}$ endowed with any symplectic form $I ¨ $ . Suppose a finite cyclic group $Z_{n}$ is acting…

math.SG2025

Almost toric fibrations on symplectic blow ups

Pranav Chakravarthy, Yoel Groman

Given a symplectic 4-manifold with an almost toric fibration and a symplectic ball embedding whose image under the moment map is contained in an affine convex set R, we produce a s…

math.SG2025

J-tamed inflation via tame to compatible deformations

Pranav Chakravarthy, Jordan Payette, Martin Pinsonnault

We give a complete and self-contained exposition of the $J$ -tame inflation lemma: Given any tame almost complex structure $J$ on a symplectic $4$ -manifold $(M, I ¨ )$ , and given any c…