Chaos theory and the sensitive dependence on initial conditions was described in the literature in a particular case of the three-body problem by Henri Poincaré in 1890.

* de Finetti, Bruno ( 1937 ) " La Prévision: ses lois logiques, ses sources subjectives ," Annales de l ' Institut Henri Poincaré,

While other philosophers have developed two-stage models, including William James, Henri Poincaré, Arthur Holly Compton, and Henry Margenau, Dennett defends this model for the following reasons:

After important contributions of Hendrik Lorentz and Henri Poincaré, in 1905, Albert Einstein solved the problem with the introduction of special relativity, which replaces classical kinematics with a new theory of kinematics that is compatible with classical electromagnetism.

Also in the last part of that century, Felix Klein and Henri Poincaré introduced a category of fractal that has come to be called " self-inverse " fractals.

In mathematics, more specifically algebraic topology, the fundamental group ( defined by Henri Poincaré in his article Analysis Situs, published in 1895 ) is a group associated to any given pointed topological space that provides a way of determining when two paths, starting and ending at a fixed base point, can be continuously deformed into each other.

Historically, the concept of fundamental group first emerged in the theory of Riemann surfaces, in the work of Bernhard Riemann, Henri Poincaré and Felix Klein, where it describes the monodromy properties of complex functions, as well as providing a complete topological classification of closed surfaces.

Cantor's theory of transfinite numbers was originally regarded as so counter-intuitive — even shocking — that it encountered resistance from mathematical contemporaries such as Leopold Kronecker and Henri Poincaré and later from Hermann Weyl and L. E. J. Brouwer, while Ludwig Wittgenstein raised philosophical objections.

* Henri Poincaré 1854-1912, Paris ( France )

* Henri Poincaré, ( 1900 ) " La théorie de Lorentz et le Principe de Réaction ", Archives Neerlandaises, V, 253 – 78.

In 1905, Henri Poincaré was the first to recognize that the transformation has the properties of a mathematical group,

The work of Lorentz was mathematically perfected by Henri Poincaré who formulated on many occasions the Principle of Relativity and tried to harmonize it with electrodynamics.

Henri Poincaré is regarded as the last mathematician to excel in every field of the mathematics of his time.

Some notable mathematicians include Archimedes of Syracuse, Leonhard Euler, Carl Gauss, Johann Bernoulli, Jacob Bernoulli, Aryabhata, Brahmagupta, Bhaskara II, Nilakantha Somayaji, Omar Khayyám, Muhammad ibn Mūsā al-Khwārizmī, Bernhard Riemann, Gottfried Leibniz, Andrey Kolmogorov, Euclid of Alexandria, Jules Henri Poincaré, Srinivasa Ramanujan, Alexander Grothendieck, David Hilbert, Alan Turing, von Neumann, Kurt Gödel, Joseph-Louis Lagrange, Georg Cantor, William Rowan Hamilton, Carl Jacobi, Évariste Galois, Nikolay Lobachevsky, Rene Descartes, Joseph Fourier, Pierre-Simon Laplace, Alonzo Church, Nikolay Bogolyubov and Pierre de Fermat.

Originally conjectured by Henri Poincaré, the theorem concerns a space that locally looks like ordinary three-dimensional space but is connected, finite in size, and lacks any boundary ( a closed 3-manifold ).

At the beginning of the 20th century, Henri Poincaré was working on the foundations of topology — what would later be called combinatorial topology and then algebraic topology.

* Lectures at the Institut Henri Poincaré ( slides and videos )

* Lectures at the Institut Henri Poincaré ( slides and videos )

** Special relativity, a theory formulated by Albert Einstein, Henri Poincaré, and Hendrik Lorentz

From left to right: Top row-Archimedes, Aristotle, Alhazen | Ibn al-Haytham, Leonardo da Vinci, Galileo Galilei, Antonie van Leeuwenhoek ; Second row-Isaac Newton, James Hutton, Antoine Lavoisier, John Dalton, Charles Darwin, Gregor Mendel ; Third row-Louis Pasteur, James Clerk Maxwell, Henri Poincaré, Sigmund Freud, Nikola Tesla, Max Planck ; Fourth row-Ernest Rutherford, Marie Curie, Albert Einstein, Niels Bohr, Erwin Schrödinger, Enrico Fermi ; Bottom row-J. Robert Oppenheimer, Alan Turing, Richard Feynman, E. O. Wilson, Jane Goodall, Stephen Hawking

Special relativity ( SR, also known as the special theory of relativity or STR ) is the physical theory of measurement in an inertial frame of reference proposed in 1905 by Albert Einstein ( after the considerable and independent contributions of Hendrik Lorentz, Henri Poincaré and others ) in the paper " On the Electrodynamics of Moving Bodies ".

The history of special relativity consists of many theoretical results and empirical findings obtained by Albert Michelson, Hendrik Lorentz, Henri Poincaré and others.

The theorem was later utilized, popularized, generalized and further developed by James Clerk Maxwell, Lord Rayleigh, Henri Poincaré, Subrahmanyan Chandrasekhar, Enrico Fermi, Paul Ledoux and Eugene Parker.

* July 17 – Henri Poincaré, French mathematician ( b. 1854 )

Many classic works of street photography were created in the period between roughly 1890 and 1975 and coincided with the introduction of portable cameras, especially small 35mm, rangefinder cameras, most famously the Leica, as used by Henri Cartier-Bresson, among others.

Indeed, if pressed, we would say what the late Robert Henri, American painter, said to a pupil, `` Anything will do for a subject: it's what you do with it that counts ''.

In France, Henri Langlois called Hawks " the Gropius of the cinema " and Swiss novelist and poet Blaise Cendrars said that the film " definitely marked the first appearance of contemporary cinema.

The validity of the dating methodology has subsequently been called into question, and the age of the shroud is still the subject of much debate despite the existence of a 1389 Memorandum by Bishop Pierre D ' Arcis to the Avignon Antipope Clement VII mentioning that the image had previously been denounced by his predecessor Henri de Poitiers ( Bishop of Troyes 1353-1370 ), stating " Eventually, after diligent inquiry and examination, he discovered how the said cloth had been cunningly painted, the truth being attested by the artist who had painted it, to wit, that it was a work of human skill and not miraculously wrought or bestowed.

After marching into Damascus in July 1920 to put down an anti-colonial rising, French General Henri Gouraud is reputed to have stood at Saladin's grave, kicked it and said: " The Crusades have ended now!

Henri Estienne called it detestable, and Étienne Pasquier said it deserved to be thrown into the fire with its author if he were still living.

He was an active journalist, showing in philosophy and literature the influence of Victor Cousin, and is said to have furnished to no small extent the original of Honoré de Balzac's character, Henri de Marsay.

During his stay in America, he was cited as being an intimate artist, bringing the viewer into his work, even when the picture was that of subjects such as the intimidating New York City Even other photographers cite Kertész and his photographs as being inspirational ; Henri Cartier-Bresson once said of him in the early 1930s, " We all owe him a great deal ".

In “ L ' Enigme de Rhedae ” ( 1964 ) Henri Lobineau said that Saunière discovered documents bearing the royal seal of Blanche of Castile, giving the line of Dagobert II drawn up by Abbé Pichon between 1805 and 1814, using documents found during the Revolution.

:" You have no idea what the Tour de France is ," Henri said.

On being told that no MI6 file on Henri Paul had been found, Tomlinson said that it " would be absurd after 17 years to say I can positively disagree with it, but ... I do not think the fact that they did not manage to find a file rules out anything either ".

He said he believed MI6 had an informant at the Paris Ritz but he could not be certain, and had never claimed, that this person was necessarily Henri Paul .< ref >

Alan Bleasdale said, " The poetry of Henri, Patten and McGough has stayed with me for 35 years.

Henri Pélissier said he had seen Bottecchia ride the Giro di Lombardia and Milan – San Remo and the team signed him.

He drew inspiration from Henri Cartier-Bresson, Robert Frank and Eugène Atget — he has said " In the pantheon of greats there is Robert Frank and there is Atget ".

A Pew Foundation Survey said he was one of the two most frequently read writers by pastors in mainline Protestantism ( Henri Nouwen also noted ).

Her young son, Henri, the Comte de Chambord, is said to have wept bitterly when his family left for Austria in 1932 as he had become very attached to Scotland.

Before he dropped out, he warned the organiser, Henri Desgrange, who said: " You are the first rider to come to see me before dropping out.

Even as the German armies began flowing through Belgium in mid-August, Joffre's Assistant Chief of Staff, General Henri Berthelot said:

After the war, the writer Henri de Kérillis accused de Gaulle of having been a member of La Cagoule ; he said that De Gaulle was ready to install a fascist government if the Allies let him become France's chief of state.

His mother, Anglique Marie d ' Arlus, comtesse de Montrond ( died 1827 ), was a royalist writer, said to be the author of the Troubadour barnois, a song which has the refrain " Louis, le fils de Henri, Est prisonnier dans Paris ".

Albert Thibaudet, perhaps the greatest of the entre-deux-guerres critics, said that during January 1933 it was still a common topic of conversation at dinner parties in Paris ( Henri Godard, " Notice ," in Céline, Romans, vol.

Abbot Henri Poisson said in his book:

It is also sometimes known as Loisel's Island, after Henri Loisel who took up a sheep farm at Waihau Bay to the south, and is said to have kept a yacht moored there, but is again officially known by its original Māori name, Pourewa.