Papers are often used to refer to articles that conduct research in various academic fields and describe academic research results, which are referred to as papers for short. It is not only a means to discuss problems in academic research, but also a tool to describe academic research results in academic exchanges. There can be only one author or multiple authors, and the author's signature position can well distinguish the contribution of each author. There are three concepts that are often confused: the first author, the correspondent author and the same work. Is the correspondent of that paper equal to the first author?

1. Is the correspondent author of the paper equal to the first author? The correspondent author and the first author can be the same author, but it depends on the specific situation of the article. Whether the correspondent author and the first author are the same author mainly depends on whether the article is co-authored or solo. If the article is a single article, the correspondent and the first author can be the same author. In this case, the correspondent is equivalent to the first author.

2. A single paper is an independent paper written by the author. From the conception and writing of the paper to the collection and publication of relevant documents and data, the author completed it independently, including communication with magazines and other outsiders, without the assistance and intervention of others. In this case, the author is both the correspondent and the first author, but if the article is co-authored, in most cases, the first author and the correspondent are two different authors.

3. Co-authored articles generally involve a lot of work, especially some key scientific research projects, which are all related work completed by teamwork and involve different division of labor of different authors. In co-authored papers, it is easy to distinguish the correspondent from the first author. In addition to shouldering the responsibility of external communication, the correspondent is also the commander-in-chief of the whole article writing and publishing, and the first author is usually the main author of the article.

4. In the publication of academic papers, the correspondent is usually the tutor or the person in charge of the institution, which is one of the most basic criteria for signature. Other aspects also need to be considered comprehensively by the author as far as possible. After all, the position of signature involves the author's vital interests, so it is better to consider it comprehensively on the basis of objective facts.