Homotopy and the Fundamental Group Flashcards

1
Q

Define Homotopy

A
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2
Q

Is homotopy an equivalence relation?

A

Yes

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3
Q

Define null homotopic

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4
Q

Define homotopic equivalence

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5
Q

Is homotopic equivalence an equivalence relation?

A

Yes

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6
Q

Define contracible

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7
Q

Define the cone on X

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8
Q

Is a contracible space path connected?

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9
Q

Give the relationship between homotopy and homeomorphic

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10
Q

Define a based space /map

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11
Q

Define a loop

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12
Q

When are loops homotopic

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13
Q

The define the concatenation of loops

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14
Q

Define the funadmental group

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15
Q

Is two based maps are homotopic then

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16
Q

Define f_*

A
17
Q

Going from f to f_* preserves?

A
18
Q

Is based spaces are homotopy equivalent then?

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19
Q

In a path connected space, what do we know about the based spaces

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20
Q

A space is contractible then what can we say about its fundamental group

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21
Q

Define simply connected

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22
Q

In a convex subset of R^n what can we say about paths in it?

A
23
Q

State Brouwer’s fixed point theorem

A