Specific explanation:

Co-authorship is the co-author, which is the collective name of all the authors of the paper. It can be one work, two works, or other authors. Papers can be written independently or co-authored. For a single paper, there is only one independent author, one and only one. Co-authored papers will be divided into one, two, three and so on.

Once the word "co-authored" appears in a paper, it can be determined that the paper is co-authored, representing more than one author and at least one or two works. As for whether there are other authors, we should confirm them according to the actual situation. Different authors have different contributions to co-authored papers, and their signature rankings are also different.

Distinguish:

How to read a work, just pay attention to the author's position. The first author is a work, the second is a work, the third is a work, and so on. Correspondents are usually the last signature, so the first author can be determined by looking at the position of the first signature. If the article has * * * the same as the first author, mark the serial number 1 or the letter A in the upper right corner of the author's name to represent the first author.

Since one or two co-authored papers are the authors of the papers, co-authorship can refer to one or two authors, or other authors, if any. However, among the authors, one work has the highest recognition. Within the requirements of professional title evaluation and graduation examination, the other two works cannot be said to have been rejected, but there are quite few units that recognize the two works. It is better to sign one work and use it better.

The first author is highly recognized in China, and the recognition is higher than that of the correspondent author. In the promotion of professional titles or other assessment items, it is very common to ask the first author to publish a paper. The first author is the main author of an article and the executor of related experiments, so it plays an obvious role in the creation and publication of the article.