every point on the torus has a different copy of π Β² glued to it, and whether it twists or not depends on representations of its fundamental group into πΊπΏ(2,π )
47b8c2ca-a0ef-46d0-9fda-f979d08bd48c
added on September 6, 2025 at 07:53
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every point on the torus has a different copy of π Β² glued to it, and whether it twists or not depends on representations of its fundamental group into πΊπΏ(2,π )
47b8c2ca-a0ef-46d0-9fda-f979d08bd48c
added on September 6, 2025 at 07:53