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Sponsored by the Center for Science and Technology Development of the Ministry of Education
Supervised by Ministry of Education of the People's Republic of China
Abstract The function space L^{p(x)}(Omega) with unbounded variable exponent, which generalizing the space L^{p(x)}(Omega) with bounded variable exponent, is investigated in this paper. We have defined a norm, investigated some basic properties of it and proved that the space is a Banach function space (and also a Banach space). Some other properties of the space, such as uniform convexity and embedding have also been investigated. As we will see, the properties of L^{p(x)}(Omega) with unbounded variable exponent is more complex than the space with bounded variable exponent.