Let S¹ = {z E C | |z| = 1}, and let p: RS¹ be the standard covering map given by p(t) = e2rit. Consider the product covering map px p: RxR → S¹ × S¹, and let f: [0, 1] → S¹ x S¹ be the loop given by f(t) = (erit, ebrit). Find the lift f: [0, 1] → R² of f at (0,0), and sketch both f and f.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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5. Let S¹
{z € C | |z| = 1}, and let p: RS¹ be the standard covering map
given by p(t) = e²rit. Consider the product covering map px p: Rx R → S¹ × S¹,
and let f: [0, 1] → S¹ × S¹ be the loop given by f(t) = (erit, e6it). Find the lift
ƒ: [0, 1] → R² of ƒ at (0,0), and sketch both f and f.
-
Transcribed Image Text:5. Let S¹ {z € C | |z| = 1}, and let p: RS¹ be the standard covering map given by p(t) = e²rit. Consider the product covering map px p: Rx R → S¹ × S¹, and let f: [0, 1] → S¹ × S¹ be the loop given by f(t) = (erit, e6it). Find the lift ƒ: [0, 1] → R² of ƒ at (0,0), and sketch both f and f. -
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