The Society for Discrete Variational X alpha

Genta Sakane Laboratory,
Natural Sciences Section,
Center for Fundamental Education,
Institute for the Advancement of Higher Education,
Okayama University of Science,
1-1 Ridai-cho, Kita-ku, Okayama 700-0005, Japan

mail　dvxa@e-mail.jp

Please kindly forbear inquiring by telephone to miss the trouble.