examples of spectral sequences

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examples of spectral sequences

Proving Hurewicz: attachments/Pasted%20image%2020220422205054.png

Evenly supported complexes

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Loop spaces of spheres

#examples/explicit-computations

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Computing \begin{align*} H_* {\Omega}S^n = \left\langle{ x_{n-1}, x_{2(n-1)}, x_{3(n-1)}, \cdots}\right\rangle \end{align*} attachments/Pasted%20image%2020210613215050.png

Multiplicative structure

Appearance of a divided power algebra.

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Computing for Eilenberg-MacLane spaces

#examples/explicit-computations

Computing \begin{align*} H_*( K({\mathbf{Z}}, 2); {\mathbf{Z}}) = {\mathbf{Z}} { \left[ \scriptstyle {x} \right] } , \qquad {\left\lvert {x} \right\rvert} = 2 \end{align*} attachments/Pasted%20image%2020210613214829.png

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Group cohomology

Used to study Serre classes:

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p torsion in \(\pi_{2p}S^3\)

An example of working one prime at a time:

attachments/Pasted%20image%2020220403205144.png attachments/Pasted%20image%2020220403205152.png

#homotopy #todo/add-references #examples/explicit-computations