来源:Geometric and Functional Analysis, 2012, 22(3): 621-626.
DOI:10.1007/s00039-012-0167-6
摘要
Let I pound be a k-dimensional minimal surface in the unit ball B (n) which meets the boundary a, B (n) orthogonally. We show that the area of I pound is bounded from below by the volume of the unit ball in .