%0 Journal Article %T Invariance principle, multifractional Gaussian processes and long-range dependence %A Serge Cohen %A Renaud Marty %J Mathematics %D 2006 %I arXiv %R 10.1214/07-AIHP127 %X This paper is devoted to establish an invariance principle where the limit process is a multifractional Gaussian process with a multifractional function which takes its values in $(1/2,1)$. Some properties, such as regularity and local self-similarity of this process are studied. Moreover the limit process is compared to the multifractional Brownian motion. %U http://arxiv.org/abs/math/0610551v2