史蒂芬·霍金的博士论文Stephen William Hawking's doctoral thesis

Someimplicationsandconsequencesoftheexpansionoftheuniverseareexamined.InChapter1itisshownthatthisexpansioncreatesgravedifficultiesfortheHoyle-Narlikartheoryofgravitation.Chapter2dealswithperturbationsofanexpandinghomogeneousandisotropicuniverse.Theconclusionisreachedthatgalaxiescannot