Complex sentence: Kefeng Liu (Chinese: 刘克峰; born December 1965), is a Chinese mathematician who is known for his contributions to geometric analysis, particularly the geometry, topology and analysis of moduli spaces of Riemann surfaces and Calabi-Yau manifolds.
Split into simpler sentences: Kefeng Liu (Chinese: 刘克峰; born December 1965), is a Chinese mathematician. He is known for his contributions to geometric analysis, particularly the geometry, topology and analysis of moduli spaces of Riemann surfaces and Calabi-Yau manifolds.