Blocking-sets in infinite projective and affine spaces |
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| Authors: | Albrecht Beutelspacher Francesco Mazzocca |
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| Affiliation: | (1) SIEMENS AG, ZT ZTI SYS 4, Postfach 83 09 55, D-8000 München 83;(2) Dipartimento di Matematica e Applicazioni, Università di Napoli, Via Mezzocannone 8, I-80134 Napoli |
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| Abstract: | In every projective or affine space of infinite order there exist blockingsets. Moreover, we prove that every bijective map which preserves blockingsets of a fixed level 1 is a collineation. |
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