File:Alexander horned sphere construction (Alexander 1924).jpg
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Summary
| Description |
English: Diagram of the first few iterative steps in the construction of Alexander's horned sphere, from Alexander's original 1924 paper. |
| Date | |
| Source | Alexander, J. W. (1924), "An Example of a Simply Connected Surface Bounding a Region which is not Simply Connected", Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 10 (1): 8–10 |
| Author | Alexander, J. W. |
Licensing
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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 00:26, 9 February 2021 | | 896 × 592 (77 KB) | Adumbrativus | Uploaded a work by Alexander, J. W. from Alexander, J. W. (1924), "An Example of a Simply Connected Surface Bounding a Region which is not Simply Connected", Proceedings of the National Academy of Sciences of the United States of America, National Academy of Sciences, 10 (1): 8–10 with UploadWizard |
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