Urea508
发表于 2025-3-26 21:49:18
The Sixth Week: Examples of fundamental groupsThe region . is the plane minus one point. There is no sea, but there is an infinitely small lake ... (See Figure 6.1.) According to our rule, we are not allowed to move the curve across ... No matter how small, a lake is a lake, so we may not move our rubber railroad across ...
保留
发表于 2025-3-27 02:32:29
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发出眩目光芒
发表于 2025-3-27 08:33:37
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legitimate
发表于 2025-3-27 09:33:54
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渐变
发表于 2025-3-27 14:45:37
The Thirteenth Week: The correspondence between coverings of (,;,) and subgroups of π,(,;,)We first introduce a notation:.means that . is a covering and .
可转变
发表于 2025-3-27 21:44:46
Begriffliche und theoretische Grundlagen,in .. Let . (.) be the figure in . which . traces out. In particular, if . traces a curve . in .’, then the trace . (.) of the point . (.) = . is again a curve in .. If . is a closed curve, then . (.) is also a closed curve.
landmark
发表于 2025-3-28 00:34:37
Aktivismus und moralischer Rigorismusitself) is equal to . = deg(.). Similarly, we say that curves ..’and C.’ are . if they are lifts of the same curve. In order to construct a curve starting at .. which is conjugate to a curve ..’ starting at .., first we project ..’ to make a curve .. Then take the lift of . which starts at ... The n
厌恶
发表于 2025-3-28 04:51:06
https://doi.org/10.1007/978-3-322-82272-7thin, and trails behind as we walk, from birth to death. The tail extends far away, beyond our world, and originates in the Land of the Dead. When we walk, the tail is reeled out from its source. When we have pulled out the entire tail, we die.
机械
发表于 2025-3-28 08:47:50
https://doi.org/10.1007/978-1-4612-0329-2Galois group; Galois theory; Group theory; cls; differential equation; transformation; ordinary differenti
正常
发表于 2025-3-28 14:13:03
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