Finite intersection property for critical percolation crossings

Let QQ be a quad and let α\alpha be a smooth curve. A crossing of QQ is a percolation crossing between the designated boundary arcs of the quad. Finite intersection property. In the scaling limit, conditional on the existence of a crossing, there is almost surely a crossing intersecting α\alpha only a finite number of times. The preceding discussion gives positive conditional probability for finitely many intersections, while whether that probability is one is posed as an open conjecture; it would simplify the proof and enable a constructive gluing procedure for crossings.

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Primary source

Stanislav Smirnov and Oded Schramm, “On the scaling limits of planar percolation”, arXiv:1101.5820 (2011).

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