Posts
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October 2025 Halloween 4: The Return of Adams Spectral Sequence
How does the Adams spectral sequence help us compute the stable homotopy groups of spheres?
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October 2025 Spectral Sequences: Episode III – Revenge of the Serre
How do spectral sequences help us compute the (co)homology of spaces?
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October 2025 Steenrod Squares 2: Electric Boogaloo
How can we detect obstructions in continuous maps that ordinary cohomology can't see?
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September 2025 Cohomology Rings or: How I Learned to Stop Worrying and Love the Cup Product
How can we use cohomology to distinguish between spaces where homology fails?
Code
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November 2025 LEGO Image
Let's downsample and extract pixel colors to build a 16x16 LEGO image.