数学季刊 ›› 2025, Vol. 40 ›› Issue (2): 148-157.doi: 10.13371/j.cnki.chin.q.j.m.2025.02.003
摘要: n this paper, we explicitly establish Poincar´e inequality for 1≤p <∞ over simple geometric domains, such as segment, rectangle, triangle or tetrahedron. We obtain sharper bounds of the constant in Poincar´e inequality and, in particular, the explicit relation between the constant and the geometric characters of the domain.
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