Riemann was always very close to his family and he would never have changed courses without his father’s permission. However he attended some mathematics lectures and asked his father if he could transfer to the faculty of philosophy so that he could study mathematics. The lecture was too far ahead of its time to be appreciated by most scientists of that time. Freudenthal writes in [1]: Among other things, he showed that every piecewise continuous function is integrable.

In his habilitation work on Fourier series , where he followed the work of his teacher Dirichlet, he showed that Riemann-integrable functions are “representable” by Fourier series. Fellow of the Royal Society. Square Rectangle Rhombus Rhomboid. The physicist Hermann von Helmholtz assisted him in the work over night and returned with the comment that it was “natural” and “very understandable”. Klein was too much in Riemann’s image to be convincing to people who would not believe the latter. Riemann however used such functions for conformal maps such as mapping topological triangles to the circle in his lecture on hypergeometric functions or in his treatise on minimal surfaces.

However, Riemann’s thesis is a strikingly original piece of work which examined geometric properties of analytic functions, conformal mappings and the connectivity of surfaces.

Retrieved 13 October Friedrich Riemann married Charlotte Ebell when he was in his middle age.

But still, the day before his death, resting under a fig tree, his soul filled with joy at the glorious landscape, he worked on his final work which unfortunately, was left unfinished.

During his life, he held closely to his Rifmann faith and considered it to be the most important aspect of his life. Riemann’s letters to his dearly-loved father were full of recollections about the difficulties he encountered.


riemann 1854 habilitation dissertation

He managed to do this during Riemann tried to fight the illness by going to the warmer climate of Italy. Riemann was a dedicated Christian, the son of a Protestant minister, and saw his life as a mathematician as another way to serve God.

Riemann studied the convergence of the series representation of the zeta function and found a functional equation for the zeta function.

This was an important time for Riemann. Klein writes in [4]: This gave Riemann particular pleasure and perhaps Betti in particular profited from his contacts with Riemann.

Honours awarded to Bernhard Riemann Click a link below for the full list of mathematicians honoured in this way. Among other things, he showed that every piecewise continuous function is integrable. For example, the Riemann—Roch theorem Roch was a student of Riemann says something about the number of linearly independent differentials with known conditions on the zeros and poles of a Riemann surface.

Riemann had not noticed that his working assumption that the minimum existed might not work; the function space might not be complete, and therefore the existence of a minimum was not guaranteed. He showed a particular interest in mathematics and the director of the Gymnasium allowed Bernhard to study mathematics texts from his own library.

riemann 1854 habilitation dissertation

Riemann used theta functions in several variables and reduced the problem to the determination of the zeros of these theta functions. For those who love God, all things must work together for the best. Returning to the faculty meeting, he spoke with the greatest praise and rare enthusiasm to Wilhelm Weber about the depth of the thoughts that Riemann had presented. Views Read Edit View history. Gauss did lecture to Riemann but he was only giving elementary courses and there is no evidence that at this time he recognised Riemann’s genius.


However Riemann was not the only mathematician working on such ideas. Although only eight students attended the lectures, Riemann was completely happy.

In his habilitation work on Fourier serieswhere he followed the work of his teacher Dirichlet, he showed that Riemann-integrable functions are “representable” by Fourier series.

Bernhard Riemann – Wikipedia

InGauss asked his student Riemann to prepare a Habilitationsschrift on the foundations of geometry. Anniversaries for the year.

For other people with the surname, see Riemann surname. Through his pioneering contributions to differential geometryRiemann laid the foundations of the mathematics of general relativity. Here, too, rigorous proofs were first given after the development of richer mathematical tools in this case, topology. His teachers were amazed by his adept ability to perform complicated mathematical operations, in which he often outstripped his instructor’s knowledge.

These would subsequently become major parts of the theories of Riemannian geometryalgebraic geometryand complex manifold theory.

Bernhard Riemann

He learnt much from Eisenstein and discussed using complex variables in elliptic function theory. These theories depended on the properties of a function defined on Riemann surfaces.

Riemann’s thesis, one of the most remarkable pieces of original work to appear in a doctoral thesis, was examined on 16 December