Geography of pinched four-manifolds
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We prove several new restrictions on the Euler characteristic and signature of oriented 4-manifolds with (positively or negatively) pinched sectional curvature. In particular, we show that simply connected 4-manifolds with √ ≤ sec ≤ 1, where √ = 1 1+3√3 ∼= 0.161, are homeomorphic to S4 or CP2.
Details
| Original language | English |
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| Pages (from-to) | 1255-1310 |
| Number of pages | 56 |
| Journal | Communications in Analysis and Geometry |
| Volume | 32 |
| Issue number | 5 |
| Publication status | Published - 2024 |
| Peer-reviewed | Yes |
External IDs
| Scopus | 85214574226 |
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