BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI

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PETRU CÂRLESCU, VASILE DOBRE, IOAN ŢENU and RADU ROŞCA, Modeling of Heat Transfer During Malt Drying Process (English, Romanian summary). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică „Gheorghe Asachi” din Iaşi Tomul LVIII (LXII), Fasc. 2, 2012 Secţia MATEMATICĂ. MECANICĂ TEORETICĂ. FIZICĂ RÉSULTATS DE POINT FIXE POUR DES OPÉRATEURS ET SUITES D’OPÉRATEURS CONTRACTIFS DANS DES ESPACES PSEUDOCOMPACTS Reçue: February 28, 2012 Accepteé pour publication: May 15, 2012 PAR NICOLETA NEGOESCU ∗ Université Technique “Gheorghe Asachi” de Iaşi, Départment de Mathématiques Abstract. One proves some fixed point theorems for operators satisfying contractive conditions (1) and (1’) in pseudocompact spaces. Key words: fixed point, contractive operator, pseudocompact spaces. Dans cette Note nous démontrons quelles théorèmes de point fixe pour des opérateurs et suites d’opérateurs continues contractifs defines sur des espaces pseudocompacts. Les conditions contractives (1) (1’) et (1’’) que nous avons emploées nous ont été suggérées par celles des théorèmes de point fixe pour des applications contractives (defines sur des espaces pseudocompacts) obtenus par Jain et Dixit (1986) et par Nicoleta Negoescu (1998). Nous començons par rappeller q uelques notions et résultats qui nous sont nécessaries. D é f i n i t i o n 1. On dit que l’espace topologique X s’appelle espace de Tychonoff (ou espace T 1 ) et X est un espace T 1 (l’espace topologique X est un 3 2 espace T 1 si et seulement si pour ∀x , x2∈X, x1 ≠ x2 il existe un ensemble, ouvert D ⊂ X tel que x 1 ∈ D et x2 ∈ D ) et si pour choqur point x∈ X et chaque ensemble fermé F ⊂ X, x∉ F, il existe une function f : X → I=[0,1] ∗ e-mail: napreut@yahoo.com
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BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI

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