@article{oai:repository.dl.itc.u-tokyo.ac.jp:00039326, author = {Ohta, Shigemasa and Kaneko, Akira}, issue = {3}, journal = {Journal of the Faculty of Science, the University of Tokyo. Sect. 1 A, Mathematics = 東京大学理学部紀要. 第1類A, 数学}, month = {}, note = {application/pdf}, pages = {635--650}, title = {Critical exponent of blowup for semilinear heat equation on a product domain}, volume = {40}, year = {1993} }