## Submissions

### Online Submissions

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Registration and login are required to submit items online and to check the status of current submissions.

### Author Guidelines

The initial submission to OPM is expected to be already in final form. The author should submit the materials that warrant the immediate publication of the submission. The submission consists of four documents:

1. The main file, prepared in latex and submitted in pdf format.
2. The abstract in html.
3. The latex source for the main pdf file.

The first item in the above list should be uploaded as the main submission file. The second file will be uploaded in an online form.

The other two files (3-4) will be uploaded as "supplementary" files. The supplementary files will not be published online.

1. The manuscript can be at most 4 pages. Exceptions can be approved by the editors if a convincing argument is provided by the author.

The manuscript must contain an open problems or open problems. Related theorems can be included if they provide context for the open problem. The manuscript cannot contain proofs. Typically, the manuscript will contain references.

If the proposer of the problem is alive and is not the submitter, the submitter should make a reasonable effort to contact the proposer and confirm that the submitted version of the problem agrees with the proposer's intentions.

The manuscript should be typed in latex and the pdf version should be uploaded as the main submission file.

A sample latex file (template) can be found here. Authors do not have to use the provided latex template but they should include the following information.

• The name of the journal.
• The journal volume and year.
• The title of the submission.
• The full names of the author(s).
• The affiliation(s) of the author(s).
• The e-mail address(es) of the author(s).
• The names of the open problem proposer(s), if known.
• The year when the open problem was stated or the best guess about the year.
• The full name of the sponsor.
• AMS subject classification (two digits only).

2. The abstract must be based on the template available here. Copy the template to a file on your computer. Substitute the sample data with the actual items. Do not remove any of the comments.

In the box labeled "Abstract," click on "HTML" at the bottom of the box. Copy your modified template file into the pop-up box. Then click "Update."

You can insert formulas into abstract. Use single dollar signs on the same line to generate output such as $e^{i\pi} = -1$ and double dollar signs on the same line to generate displayed formulas such as $$\int_0^y x^4 dx = \frac{y^5}5 .$$

4. The author must find a sponsor for the submission. The sponsor must satisfy the following conditions.

• The sponsor cannot be one of the authors of the submission and cannot be one of the proposers of the open problem.
• The sponsor's articles must have been cited by at least 100 people according to MathSciNet.

The author must upload, as a supplementary file, the sponsorship form as a text or pdf file. The sponsor must send the following e-mail message to the author (with placeholders replaced with the actual items):

I, FULL NAME OF SPONSOR, certify that, to the best of my knowledge and judgment,
(i) I read the manuscript TITLE prepared by AUTHOR'S NAME,
to be submitted to "Open Problems in Mathematics", an online journal.
(ii) The open problem is interesting and significant.
(iii) The submission is written in a way that is clear, rigorous
and accessible to researchers in the area of the open problem.
(iv) The attribution of the open problem to proposer(s) is accurate.
(v) The solution to the open problem is not imminent.


A copy of the e-mail message together with the header, must be uploaded as a suppplementary file. See this file for an example of an e-mail message with "header". Different e-mail programs may have different ways to access the header. In Gmail, choose "Show original" in dropdown menu.

### Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.

1. The submission has not been previously published, nor is it before another journal for consideration (or an explanation has been provided in Comments to the Editor).
2. The submission file is in PDF document file format.
3. The sponsor has been contacted and completed the sponsorship form. The signed form is in a file format (text or pdf) that can be uploaded as a supplementary material.
4. I have all four documents listed in the Author Guidelines ready for submission. (The first document is the main submission in pdf. The second item is an abstract in html based on the template provided by the journal. The remaining two documents should be uploaded as supplementary files.)