Abstract
Under certain conditions such as the 2-convexity, a singularity
of the level set flow is of type I (in the sense that the rate of
curvature blow-up is constrained before and after the singular time)
if and only if the flow shrinks to either a round point or a
Funding statement: The research was partially supported by the grant 109-2115-M-002-018-MY3 of National Science and Technology Council of Taiwan.
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