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Date: 8-7-2021
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Date: 14-8-2021
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Date: 17-6-2021
1906
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Given a group action and a principal bundle , the associated fiber bundle on is
(1) |
In particular, it is the quotient space where .
For example, the torus has a action given by
(2) |
and the frame bundle on the sphere,
(3) |
is a principal bundle. The associated fiber bundle is a fiber bundle on the sphere, with fiber the torus. It is an example of a four-dimensional manifold.
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"عادة ليلية" قد تكون المفتاح للوقاية من الخرف
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ممتص الصدمات: طريقة عمله وأهميته وأبرز علامات تلفه
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المجمع العلمي للقرآن الكريم يقيم جلسة حوارية لطلبة جامعة الكوفة
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