论文标题
在Gelfand和MacPherson的Pontrjagin课程中
On Gelfand and MacPherson's combinatorial formula for Pontrjagin classes
论文作者
论文摘要
1992年，Gelfand和MacPherson为差分流形的Pontrjagin类提供了一个本地和组合的公式。我们给出了他们的讨论的扩展版本，并强调了组合差异歧管的起源。
In 1992 Gelfand and MacPherson gave a local and combinatorial formula for the Pontrjagin classes of a differential manifold. We give an expanded version of their discussion and highlight the origins of combinatorial differential manifolds in their work.
