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Lokalno opuklij prostir linijnij topologichnij prostir z sistemoyu napivnorm sho zadovolnyaye deyakim umovam Oznachennya red Linijnij topologichnij prostir X displaystyle X nbsp nazivayetsya lokalno opuklim prostorom yaksho isnuye simejstvo napivnorm m displaystyle mu nbsp na X displaystyle X nbsp sho zadovolnyaye dvom umovam Yaksho p x 0 displaystyle p x 0 nbsp dlya kozhnogo p m displaystyle p in mu nbsp to x 0 displaystyle x 0 nbsp Yaksho dlya dovilnoyi tochki x 0 displaystyle x 0 nbsp prostoru X displaystyle X nbsp bud yakoyi skinchennoyi sistemi napivnorm p 1 p n displaystyle p 1 p n nbsp z m displaystyle mu nbsp i bud yakoyi skinchennoyi sistemi dodatnih dijsnih chisel ϵ 1 ϵ n displaystyle epsilon 1 epsilon n nbsp rozglyanuti opukli mnozhini sho skladayutsya z elementiv x X displaystyle x in X nbsp yaki vidpovidayut umovi p i x x 0 lt ϵ i displaystyle p i x x 0 lt epsilon i nbsp s i 1 n displaystyle i 1 n nbsp to vsi taki mnozhini utvoryuye bazis topologiyi v X displaystyle X nbsp 1 Primitki red Gaevskij 1978 s 14 Literatura red Gaevskij H Gryoger K Zaharias K Nelinejnye operatornye uravneniya i operatornye differencialnye uravneniya M Mir 1978 336 s Conway John B 1990 A Course in Functional Analysis Graduate Texts in Mathematics 96 vid 2nd Springer ISBN 0 387 97245 5 Rudin Walter 1991 Functional analysis McGraw Hill Science Engineering Math ISBN 978 0 07 054236 5 Otrimano z https uk wikipedia org w index php title Lokalno opuklij prostir amp oldid 36518892