David Hilbert: The eminent mathematician of the 20th century

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8/12/2023

Mathematical genius transcends the boundaries of time and space, leaving behind a timeless legacy that will enlighten the minds of future generations. Among the great minds who have sculpted the foundations of this discipline, German mathematician David Hilbert shines with singular brilliance. His exceptional genius and immeasurable contributions shaped the foundations of modern mathematics, leaving an indelible mark on the mathematical landscape.

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David Hilbert in 1982. Source: Archives of Mathematisches
Forschungsinstitut Oberwolfach.

A bold vision

David Hilbert, born on January 23, 1862 in Königsberg, East Prussia, was a prodigious mind from an early age. His bold vision and unwavering determination to solve the most profound problems besetting mathematics at the time made him the leader of the movement known as formalism.

At a time when crucial questions were being raised about the validity of mathematics, Hilbert was convinced that mathematics could be reduced to a series of logical statements. He set out to build a solid, coherent edifice for the discipline. His program of "formal mathematics" sought to provide a solid logical and axiomatic foundation for the entire discipline.

The Hilbert program

His work on the foundations of mathematics culminated in a series of famous lectures in Paris in 1900, where Hilbert set out a list of 23 unsolved mathematical problems that would become known as the "Hilbert Problems". Each of these problems was a fascinating enigma, an intellectual challenge whose resolution promised to illuminate new mathematical horizons. The brightest minds of the day answered this call, plunging into the abyss of mathematics in an attempt to solve these complex riddles.

The contributions that have emerged from this quest have reshaped our understanding of mathematics, creating new disciplines and paving the way for revolutionary discoveries! At the congress, his speech began: "Who would not willingly lift the veil that hides the future from us in order to take a peek at the progress of our Science and the secrets of its further development in the centuries to come? In this vast and fertile field of mathematical science, what specific goals will the mathematical thought leaders of future generations strive to achieve? What new truths and methods will the new century discover in this field?"

The Emmy Noether case

David Hilbert was not only a brilliant mathematician, but also an attentive teacher of his students. He was always ready to help and support them on their academic journey. A prime example of his commitment to his students came when controversy erupted over the appointment of Emmy Noether, an eminent young mathematician, as a professor at the University of Göttingen.

Faced with opposition from some reactionary colleagues who questioned a woman's suitability for a professorship, Hilbert took a stand in favor of Emmy Noether with a touch of irony. He declared: "I don't see how a candidate's sex would be a reason to oppose her admission. After all, this is a university, not a bathhouse." This bold and insightful remark underscored his categorical rejection of gender prejudice and his unwavering support for talent and competence.

Emmy Noether (via Midjourney)

Mathematics in the service of physics

As a renowned mathematician, Hilbert didn't just concentrate on pure mathematics. He was also concerned with the rigorous application of mathematics in physics. Hilbert noted with frustration that physicists often lacked rigor when manipulating mathematical objects. For him, this was not only incomprehensible, but also aesthetically unpleasant, even "ugly".

He declared with a touch of irony: "Physics is too difficult for physicists", thus highlighting the intrinsic difficulty of using advanced mathematics. Hilbert wanted to draw attention to the need for thorough mathematical rigor in the physical sciences, in order to guarantee solid foundations and undeniable precision.

His perseverance in making mathematical methods in physics more rigorous testifies to his dedication to scientific research and his concern to set high standards of rigor and precision. Hilbert firmly believed in the power and beauty of mathematics, and wanted physicists to make full use of it to achieve significant advances in their field.

With Hitler's rise to power in 1933, Jewish professors were excluded from teaching and one by one lost their posts. The Göttingen Mathematical Institute was soon dismantled and its international prestige reduced to nothing, much to Hilbert's dismay. Invited to a banquet and seated next to the Nazi Minister of Education, Bernhard Rust, who asked him: "How is mathematics in Göttingen now that it is free from Jewish influence?". Hilbert immediately replied: "Mathematics in Göttingen? There's hardly any left."

David Hilbert's life was a veritable mathematical poem, a symphony of profound thoughts and lasting contributions. His exceptional genius and inquisitive mind left an indelible mark on the mathematical landscape, influencing future generations of researchers and shaping our understanding of this noble and universal discipline. Today, David Hilbert's name still resonates with wonder and respect, reminding us of the infinite power of the human mind when guided by the beauty and logic of mathematics.

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