Step 0 Article Submission Proceed only if this is an entirely new submission to Frontiers of Mathematics and you have read the submission guidelines. If you are trying to upload a revision of a previously submitted article (which had not been rejected), use instead the status link from the email you received from us about your original submission. If you can’t find the link or the link doesn’t work, write to us at editflow@msp.org. Author Agreement By clicking next to “I accept” below, you confirm that: The submitted article (or a closely similar article) is not currently under consideration, nor will it be submitted, for publication elsewhere while it is being considered for publication in this journal. The submitted article has not already been published or accepted for publication in a peer-reviewed journal. The submitted article is not a revision of a rejected article previously submitted to this journal, unless explicitly invited to re-submit by the editorial board of this journal. Each coauthor of this article is directly aware that this submission is being made in their name. Each coauthor needs to have a valid email address that belongs only to that person and is not shared with anyone. Changes in email address should be communicated promptly. None of the coauthors are pretending to be someone they are not, or are otherwise misleading about their identity. I have read and understood these statements/policies, and I accept.* * required field