而Monge-Ampere方程在微分几何中与经典的Minkowski-Alexandrov理论紧密联系。 在微分几何中，曲面的全系不变量是第一基本形式（黎曼度量）和第二基本 ...

One recent experiment backs up Minkowski's answer — but still may not prove Abraham wrong. One might expect that the momentum of a photon, under almost any conditions, would no longer be a ...