%0 Journal Article %T Trace and extension operators for Besov spaces and Triebel-Lizorkin spaces with variable exponents %A Takahiro Noi %J Mathematics %D 2014 %I arXiv %X This paper is concerned with a boundedness of trace and extension operators for Besov spaces and Triebel-Lizorkin spaces on upper half space with variable exponents. To define trace and extension operators, we introduce a quarkonial decomposition for Besov spaces and Triebel-Lizorkin spaces with variable exponents on ${\mathbb R}^n$. Furthermore, we study trace and extension operators for Besov spaces and Triebel-Lizorkin spaces with variable exponents on upper half spaces ${\mathbb R}^n_+$. %U http://arxiv.org/abs/1410.1185v1