**Answer:** Mathematics

**Some extra relevant information:**

The Nobel Prize is one of the most prestigious awards in the world, recognizing outstanding achievements in various fields. While the Nobel Prize covers a wide range of disciplines, there is one field that is notably absent from the list of Nobel Prize categories.

That field is Mathematics. Surprisingly, despite its significant contributions to society and its immense impact on various scientific disciplines, there is no Nobel Prize specifically dedicated to Mathematics. This absence has often been a subject of debate and criticism within the academic community.

The reason behind the exclusion of Mathematics from the Nobel Prize list is not entirely clear. Several theories have been proposed to explain this omission. One belief is that Nobel had a personal rivalry with a mathematician named GĂ¶sta Mittag-Leffler, which somehow influenced his decision. Another theory suggests that Nobel considered Mathematics to be too abstract or not directly applicable to the betterment of humanity.

However, it is important to note that although Mathematics is not recognized by the Nobel Prize, there are numerous other prestigious awards dedicated to this field, such as the Fields Medal and the Abel Prize. These awards hold similar significance and honor outstanding mathematicians for their contributions and advancements in the field.

In conclusion, while the Nobel Prize acknowledges exceptional achievements in fields like Physics, Chemistry, Physiology or Medicine, Literature, Peace, and Economic Sciences, Mathematics has been notably left out. Nevertheless, the absence of a Nobel Prize for Mathematics does not undermine the importance of this field or the achievements of mathematicians. Other distinguished awards exist specifically to celebrate and honor their accomplishments in Mathematics.