Mark Ronan
Mark Ronan

Professor of Mathematics. Author of Symmetry and the Monster — a popular account of one of the great quests in mathematics. Specialist in Mesopotamian history and literature. Cold-water swimmer. Opera reviews.

Latest Theatre Reviews

The Elixir of Love, English National Opera, November 2024

November 21, 2024

Quite why director Harry Fehr decided to update this opera to a 1960s television sitcom about the air war against Germany in World War Two I do not know, but the fact that the garish uniforms were the wrong colour blue might suggest this was very much tongue-in-the-cheek. Fine singing and conducting though — see …

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Les Contes d’Hoffmann, Royal Opera, Nov 2024

November 9, 2024

E. T. A. Hoffmann was an inspired writer of stories that melded fantasy and reality, and three in particular informed this opera by Offenbach. It is unquestionably the greatest work by this French master of operetta, and a new production at Covent Garden is hugely welcome — see my review in The Article.

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Rigoletto, English National Opera, Oct 2024

November 1, 2024

This production by the late Jonathan Miller is a classic, and congratulations to the ENO for putting it on with a splendid cast. Recent threats by the Arts Council notwithstanding, the ENO does a fine job of bringing people in to witness one of the great art forms, which is exactly what they should be …

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The Turn of the Screw, English National Opera, Oct 2024

October 15, 2024

This new production is by someone who has previously made her name as a stage designer, and I found the designs too clever by half. The key to this opera is ambiguity, but this was absent. The mystery of the story however was heard in the excellent performance of Britten’s music and the carefully crafted …

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Eugene Onegin, Royal Opera, September 2024

October 1, 2024

This was a new production featuring some excellent singing, particularly in the roles of Tatyana, Lensky and Prince Gremin, but the staging was very dull. A white stage with almost no props may emphasise the emptiness of Onegin’s life, but gives little to the audience — see my review in The Article.

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Latest Journalism

The brilliance of Babylonian Mathematics

The achievements of Babylonian mathematics are still poorly recognised, but the people in ancient Iraq treated numbers in the abstract way we do today, rather than as lengths, areas or volumes. This began before 2000 BC, and enabled them to develop mathematical formulas in the modern sense. In particular they not only knew what we call Pythagoras’s theorem but had a formula for producing side lengths for right-angled triangles, something the Greeks could not do well over a millennium and a half later. See my article in Engelsberg Ideas.

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How modern Numbers came to Europe

Our modern representation of numbers is the result of a complex process that can be traced back to the ancient Near East, via India and the Arab world — see my article in Engelsberg Ideas.

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The Pythagoras Myth

Contrary to popular belief, Pythagoras was by no means the discoverer of his eponymous theorem – it had already been known for over a thousand years. In popular perception however he became the source of the famous theorem about right-angled triangles: The Square on the Hypotenuse is equal to the Sum of the Squares on the Other Two Sides, a great result – serious mathematics indeed. But it has little to do with Pythagoras — see my article in Engelsberg Ideas.

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Vandalism at the Coliseum: why we should not let the ENO die

Is the English National Opera dying? Or does it stand at the threshold of new developments? The argument for death is that it has difficulty filling the London Coliseum, a vast auditorium that accommodates an audience of about two and a half thousand. It cannot survive without a decent subsidy from the state. Can we afford it? As for the idea of moving the whole thing to Manchester, Arts Council England has certainly not evaluated the logistics nor the implications of its hasty decision. My essay in The Article.

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Feature

Symmetry and the Monster is the story of a mathematical quest that began two hundred years ago in revolutionary France, led to the biggest collaboration ever between mathematicians across the world, and revealed the ‘Monster’ – not monstrous at all, but a structure of exquisite beauty and complexity.

This book tells for the first time the fascinating story of the biggest theorem ever to have been proved. Mark Ronan graphically describes not only the last few decades of the chase, but also some of the more interesting byways, including my personal favourite, the one I called “Monstrous Moonshine”.

John H. Conway, von Neumann Chair of Mathematics, Princeton University

Opera on 3: for the BBC Radio 3 broadcast (on 19 November 2016) of Parsifal from this summer’s Bayreuth Festival, I was the guest with presenter Christopher Cook. We discussed the opera and its production, which I reviewed for the Daily Telegraph on 27 July 2016.

Truth and Beauty: The Hidden World of Symmetry

On the face of it, symmetry may seem simple, but diving beneath the surface reveals a whole new world. Over the last 100 years, the mathematical idea of symmetry has proved to be a guiding light for the world of physics. But what does a mathematician mean by symmetry? How does this link in with the world around us? And could it be the key to the mysterious ‘Theory of Everything’?

This was a BBC Radio programme on Symmetry in the Naked Scientists series. Here is the link