Editing Yisroel Aryeh Leib Schneerson (section)

==== His Scientific Work ====
His scientific work in mathematics was submitted by the Rebbe to Professor Pesach Rosenbloom from Minnesota to prepare it for publication, which was indeed published by him, though without knowing the identity of the author. During the farbrengen of 10 Shevat 5735 (1975), between the talks when the professor approached the Rebbe with the composition, the Rebbe revealed to him that it was his brother's writings who had passed away. Among other things, the Rebbe told him that R' Yisrael Aryeh Leib loved to write things based on his own understanding, being independent in his thinking, and only afterward would he look for sources for his words.

After the publication of the work, the Rebbe sent a letter to Professor Rosenbloom in which he wrote (free translation from English): "First of all, I want to thank you again, dear Dr. Rosenbloom, for the effort, attention, and love you invested in preparing my late brother's manuscript for publication. Although its content is not exactly my field, the effort and dedication you invested are very evident. I would like to thank you also for the future - your continued work on this matter, to print it in the proper way as this is your profession."

In 5781 (2021), additional notebooks of Yisrael Aryeh Leib with mathematical compositions were discovered and transferred to a team of researchers to decipher them.