Dr. S. D. Manjarekar (Ph.D.), BoS in Mathematics and Statistics, S. P. P. U. , Pune

Thursday, June 1, 2023

History of Fermat's Last Theorem

                              Fermat's Last Theorem is one of the most famous mathematical problems in history. It was proposed by Pierre de Fermat, a French lawyer and amateur mathematician, in the 17th century. Fermat's Last Theorem states that no three positive integers a, b, and c can satisfy the equation a^{n} + b^{n} = c^{n} for any integer value of n greater than 2.

                        Fermat first mentioned this theorem in the margin of his copy of the book "Arithmetica" by the ancient Greek mathematician Diophantus. Fermat claimed that he had discovered a "truly marvelous proof" for the theorem but did not provide the proof itself. This claim caught the attention of mathematicians for centuries, and numerous attempts were made to prove or disprove the theorem. Despite numerous efforts, Fermat's Last Theorem remained unproven for over 350 years, becoming one of the most enduring and tantalizing unsolved problems in mathematics. Many famous mathematicians, including Euler and Gauss, attempted to solve it, but none succeeded.

                       In the 19th century, Ernst Eduard Kummer made significant progress by proving a special case of Fermat's Last Theorem for certain prime exponents. He introduced the concept of ideal numbers and developed a theory that paved the way for future mathematicians. 

                       The breakthrough in the proof of Fermat's Last Theorem came in the 20th century with the work of Andrew Wiles, a British mathematician. In 1994, after years of intensive research, Wiles published a proof for the theorem. However, his initial proof contained a flaw, which he later corrected with the help of Richard Taylor.Wiles' proof relied on advanced mathematical techniques, particularly elliptic curves and modular forms, bringing together concepts from number theory, algebraic geometry, and algebraic number theory. His proof was complex and involved several intricate ideas and theorems.

                         Wiles' proof of Fermat's Last Theorem was a significant mathematical achievement and garnered worldwide attention. It demonstrated the power of modern mathematics and the remarkable depth and complexity of the problem. Wiles was awarded the Abel Prize in 2016, one of the highest honors in mathematics, for his proof.

                          Fermat's Last Theorem now stands as a proven mathematical theorem, closing the chapter on a problem that had fascinated mathematicians for centuries. It serves as a testament to the perseverance, creativity, and brilliance of mathematicians throughout history.

                           Many mathematicians throughout history attempted to prove Fermat's Last Theorem before it was eventually proved by Andrew Wiles. Here are some notable mathematicians who made significant contributions or attempts in the quest to prove Fermat's Last Theorem:

Leonhard Euler (1707-1783): A prolific Swiss mathematician, Euler made several attempts to prove Fermat's Last Theorem but was unable to provide a conclusive proof.

Carl Friedrich Gauss (1777-1855): Known as the "Prince of Mathematicians," Gauss made attempts to prove the theorem but was unsuccessful. However, his work laid the foundation for future developments in number theory.

Ernst Eduard Kummer (1810-1893): Kummer made significant progress in understanding Fermat's Last Theorem. He developed the theory of ideal numbers, which helped him prove the theorem for certain prime exponents.

Sophie Germain (1776-1831): Germain was a French mathematician who worked independently on Fermat's Last Theorem. She made important contributions to number theory and worked extensively on the theorem.

Bernhard Riemann (1826-1866): Riemann, a German mathematician, made contributions to the field of complex analysis, which later played a role in understanding elliptic curves, a key concept in Wiles' eventual proof.

Ernst Eduard Lindemann (1852-1939): Lindemann was a German mathematician who proved the transcendence of π (pi). His work on transcendental numbers provided insights that later influenced the understanding of elliptic curves, contributing to the eventual proof of Fermat's Last Theorem.


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