I am an editor (chair) of International Journal of Mathematics.
As written in the official instruction page, we prefer electronic submissions. The following forms are acceptable.
Any submission will be acknowledged promptly, within 24 hours in almost all cases. If you do not receive my acknowledgement within one week, please write to me again. If you still do not receive anything from me, please try FAX (+81-3-5465-7012) or airmail to the address below. Please note that e-mail messages from/to hotmail or yahoo addresses have been lost in many cases. Also Gmail tends to label my e-mail messages as spams.
If the source (La)TeX file is not supplied at the time of a submission, we will need the file after acceptance of the paper.
Yasuyuki Kawahigashi
Department of Mathematical Sciences
University of Tokyo
3-8-1 Komaba, Tokyo, 153-8914
JAPAN
E-mail: yasuyuki@ms.u-tokyo.ac.jp
Submission to Commun. Math. Phys.