%0 Journal Article %T On the number of digit changes in base-$b$ expansions of algebraic numbers %A Hajime Kaneko %J Uniform Distribution Theory %D 2012 %I Mathematical Institute of the Slovak Academy of Sciences %X Bugeaud [6] introduced the number of digit changes to measure thecomplexity of the base-$b$ expansions of algebraic irrational numbers.We give lower bounds of the number of digit changes which are generalizations ofresults in [13]. We also study the number of occurrences of words in thebinary expansions of algebraic irrational numbers. %K algebraic numbers %K normal numbers %K symmetric signed expansions %U http://www.boku.ac.at/MATH/udt/vol07/no2/07Kaneko35-11.pdf