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What is the fundamental group of a real projective plane minus finite points?

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#algebraic-topology #homotopy-theory #fundamental-groups #projective-space
320
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fundamental group of complex Projective Line minus points

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#fundamental-groups #projective-space #riemann-sphere
672
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Relation between free homotopy and in the same conjugacy class

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#algebraic-topology #homotopy-theory #fundamental-groups
173
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Fundamental group of $R^3$ minus three lines that form a triangle

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#general-topology #algebraic-topology #homotopy-theory #fundamental-groups
296
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Fundamental Group of $\mathbb{RP}^n$ not using Van Kampen

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#algebraic-topology #fundamental-groups
147
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Fundamental group of $\Bbb C^2$ minus three lines passing through the origin

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#algebraic-topology #fundamental-groups
182
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Classifying some spaces according to their fundamental groups

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#general-topology #algebraic-topology #fundamental-groups
367
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Quotient space by Deck transformation and its fundamental group

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#algebraic-topology #covering-spaces #fundamental-groups
161
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why $\pi_1(S^2)=0?$

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#algebraic-topology #fundamental-groups #spheres
46
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For a knot $K\subset S^3$, the inclusion $\partial \nu K\to (S^3-\text{int}(\nu K))$ induces a surjection on $\pi_1$

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#algebraic-topology #homotopy-theory #fundamental-groups #knot-theory #surgery-theory
125
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Generalization of homotopy groups

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#general-topology #algebraic-topology #homotopy-theory #fundamental-groups #spheres
79
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Question on finding $\pi_1 (\mathbb R P^n),$ for $n \geq 2.$

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#algebraic-topology #solution-verification #covering-spaces #fundamental-groups #projective-space
99
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Compute $\pi_1(S^1 \times (0,\infty))$

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#algebraic-topology #fundamental-groups
153
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Fundamental group of that using Seifert-van Kampen

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#general-topology #algebraic-topology #fundamental-groups #spheres #free-product
128
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What should you know before you study "Galois Groups and Fundamental Groups" by Tamás Szamuely?

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#galois-theory #book-recommendation #fundamental-groups #advice

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