Hello, I have paper 1 in the arxiv (that is submitted to the journal) and submitted paper 2 with completely new results (with similar formulations and refereeng to paper 1. I didn't want to change paper 1 because it is submitted, people refer to it, and it makes bad impression when new and new revisions are made, also the submission date is changed), the second paper was returned by the arxiv, I appealed, and this is their response:
Dear Olga Kharlampovich,
Our moderators have considered your appeal and maintain that your article is not appropriate as a new submission to arXiv. The new ideas should be incorporated into a replacement of your existing article.
In general the maintainers of arXiv choose to exercise very limited control over submissions; however, we do want arXiv to be as useful as possible for all of the various communities publishing here.
A moderator noticed that you have submitted several articles in a short period with similar ideas and content. After a discussion of your submissions among the other moderators and members of the advisory committee, we have decided to ask you to consolidate articles with similar content, or which are variations on the same theme into single articles.
This will be more efficient for the whole arXiv community, and may be beneficial to you as well. In consolidating your work you may find that you can more clearly elucidate the connections and expose the underlying principles so that your ideas will be more useful to others.
-- arXiv moderation
Let me add, that "several articles in a short period " were these Article 1 and 2". The first one was submitted in the Fall, and the second in May. I incorporated them into the same article now, but I think this is silly. What is going to happen if we get new results on a similar topic?