File:Alexander horned sphere construction (Alexander 1924).jpg
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![File:Alexander horned sphere construction (Alexander 1924).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Alexander_horned_sphere_construction_%28Alexander_1924%29.jpg/800px-Alexander_horned_sphere_construction_%28Alexander_1924%29.jpg?20210209002607)
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Construction of Alexander's horned sphere
Summary
[edit]DescriptionAlexander horned sphere construction (Alexander 1924).jpg |
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. |
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[edit]Public domainPublic domainfalsefalse |
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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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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Alexander_horned_sphere_construction_(Alexander_1924).jpg |
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current | 00:26, 9 February 2021 | ![]() | 896 × 592 (77 KB) | Adumbrativus (talk | contribs) | 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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File change date and time | 16:05, 8 February 2021 |
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81acc213a58aa1d537f1ad9349e9662768c103ae
79,102 byte
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1924
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