【关於伴随算子的若干考察沈思绍】.pdf
米*米 米米米 关于伴随算子的若干考察 SOMEOBSERVATIONSOT COMPANION OPERATORS 米米 *米.米 米*米 沈恩绍 导师:王世强 1988年1月
CONTENTS Introduction.Some Notationsand Facts Finite Forcing and f-Companion.InfiniteForcingand g-Companion.E.C.Structuresande-Companion B=6=F andPseudoModelConpanion.Some Observations ontheLowerSemi-Lattice ofCompanionOperators.
aboutthestructureoflowersemi-latticeof(companionoperators(d.M.S./prob) Ontheotherhandthemainconcernof(traditional)modeltheoryistherelationshipsbetweenthetheory(symtactics)and its mode1 class(semantics)For typicalexamples:variouspreservationtheoremsand their variations(say interpolatio