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math.CO2024
On iterated circumcenter sequences
Shuho Kanda, Junnosuke Koizumi
An iterated circumcenter sequence (ICS) in dimension is a sequence of points in where each point is the circumcenter of the preceding points. The purpose o…
math.DG2024
The hard Lefschetz duality for locally conformally almost Kähler manifolds
Shuho Kanda
We prove the hard Lefschetz duality for locally conformally almost Kähler manifolds. This is a generalization of that for almost Kähler manifolds studied by Cirici and Wilson. We g…