%0 Journal Article %T The addition law attached to a stratification of a hyperelliptic Jacobian variety %A Victor Z. Enolskii %A Shigeki Matsutani %A Yoshihiro £¿nishi %J Mathematics %D 2005 %I arXiv %X This article shows explicit relation between fractional expressions of Schottky-Klein type for hyperelliptic $\sigma$-functions and a product of differences of the algebraic coordinates on each stratum of natural stratification in a hyperelliptic Jacobian. %U http://arxiv.org/abs/math/0508366v1