While handling a controversial research paper topic you will be expected to take a particular stance on the topic. This stance must be proved to be more accurate than all the rest of the existing views.
An interesting research paper introduction can do wonders to the response you get. And the success of a controversial research paper is fully dependent on the positive response from the audience.
Even though your short research paper conclusion would be a very short paragraph, it should satisfactorily fulfill all these purposes of a conclusion.
Research papers in all subjects are supposed to be well-written. But the reader of a literature research paper would be expecting you to do wonder with words.
The introduction is one of the shortest paragraphs of a research paper. In a short research paper, the introduction will also have to be proportionately short.
Your math research paper conclusion would link all the main points of the illustrated method. That would give the readers an overview of the process of solving the problem.