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为什么在费米子相干态路径积分中要规定Grassmann代数 ...
https://www.zhihu.com/question/592211445
为什么在费米子相干态路径积分中要规定Grassmann代数和产生堙没算子反对易？
grassmannian流形是用来干什么的？ - 知乎
https://www.zhihu.com/question/293775789
谢邀。 Grassmannian是向量丛的分类空间（classifying space）。紧流形M上的rank k vector bundles的同构类全体 跟 M到 Gr (k,N)的连续映射的同伦类 一一对应，其中N为足够大的正整数，与M的维数有 …
grassmann流形是微分流形么，如何证明？ - 知乎
https://www.zhihu.com/question/488418496
证明Grassmann流形是微分流形，实际上大部分经典教材都有，像什么gtm218，Milnor的示性类等等。 不由想起当初微分流形课上老师要求将218中Grassmann流形是微分流形的证明抄一遍，现在看来这 …
格拉斯曼代數（Grassmann Algebra）的應用性在哪裡？ - 知乎
https://www.zhihu.com/question/23088553
格拉斯曼代數（Grassmann Algebra）的應用性在哪裡？ 昨天在GDC 2014聽了Eric Lengyel的Grassmann Algebra in Game Development ，之前也很粗略地看過關… 显示全部 关注者 141 被浏览
什么是格拉斯曼数？ - 知乎
https://www.zhihu.com/question/29154765
欲描述电子的波，波的振幅一定是反交换的格拉斯曼（Grassmann）数，使得波量子具有费米统计。 由于电子如此奇怪，很少有人将电子和电子波看成是某物的集体运动。 人们毫不怀疑电子是基本粒 …
Grassmann number有多少个？ - 知乎
https://www.zhihu.com/question/49920597
对于grassmann number个数的问题，这显然取决于你研究的线性空间 V。 显然 N 维线性空间 V 中，按照 (物理的语言)最多有 N 个反对称的指标 (如果 v_i 是 V 的一组基我们最多能够wedge 到 v_1 …
与Grassmann manifold 有关的问题？ - 知乎
https://www.zhihu.com/question/269637978
这一纤维化实际上给了我们Grassmann流形与正交群拓扑上的关系. 由于纤维化的长正合列我们就知道 . Bott周期性确定了 的同伦群, 从而我们可以得到Grassmann流形的同伦群. 而由于我们知道 的同调群, …
grassmann流形 的维数是怎么算出来的？ - 知乎
https://www.zhihu.com/question/281453827
Grassmann流形 中的点应该是R^ (n+k)中过原点的 n-plane (n维平面)，而某一点的邻域应该是这个平面进行一些扰动，可以自由扰动的方向数目就应该是Gr_n (R^ (n+k))的维数，考虑这一点对应的n …
大模型微调到底有没有技术含量，或者说技术含量 ...
https://www.zhihu.com/question/599396505
大模型时代，人人都在说“我做了微调项目”。 面试官：就这？ 实话说，两年前我确实就靠着一个微调项目，实习的面试中嘎嘎乱杀。但今时不同往日，仅仅一个微调项目，会让面试官猜你是不是调参王 …
知乎盐选 | 4.3 特殊的黎曼流形
https://www.zhihu.com/market/pub/120085036/manuscript/1313430859639889920
定义 4-1 格拉斯曼流形（Grassmann manifold）。 由所有在 Rn 上的 m 维线性子空间张成的黎曼流形称为格拉斯曼流形，记为 Gn，m。 格拉斯曼流形也可以定义为：在格拉斯曼流形空间中的每个 m 维子 …
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