![]() Sculpture: the work of Hans Noë is open to the general public for viewing during MoMath’s open hours, daily from 10 am to 5 pm. MoMath wishes to thank David de Weese for his generosity in sponsoring this show. This show, curated by the veteran arts writer Lawrence Weschler, is the first time he is sharing this work with the public. After retiring, Hans built an exquisite house of his own up north along the Hudson River and started generating a singular collection of sculptures and maquettes. Though he had some success thereafter building homes for artists in the Hamptons during the fifties and early sixties, the deeply ingrained habit of never calling attention to himself worked somewhat against his success as an architect. After many harrowing years of subterfuge and hiding, often in plain sight, he arrived in NYC where he became a protégé of and assistant to Tony Smith, the eminent sculptor and architect. Hans was born in 1928 in Czernowitz, a town of 250,000 in Eastern Europe which saw most of its population of 140,000 Jews perish. Over the past several decades, he has been compiling a remarkable body of mathematically flecked, geometrically confounding sculptural work in virtually complete secret. Hans Noë is a 95-year-old Holocaust survivor who may not be so much a hidden master as a hiding one. The finite groups generated in this way are examples of Coxeter groups.On temporary exhibition Sculpture: the work of Hans Noë ![]() In general, a group generated by reflections in affine hyperplanes is known as a reflection group. Similarly the Euclidean group, which consists of all isometries of Euclidean space, is generated by reflections in affine hyperplanes. Thus reflections generate the orthogonal group, and this result is known as the Cartan–Dieudonné theorem. Every rotation is the result of reflecting in an even number of reflections in hyperplanes through the origin, and every improper rotation is the result of reflecting in an odd number. The product of two such matrices is a special orthogonal matrix that represents a rotation. The matrix for a reflection is orthogonal with determinant −1 and eigenvalues −1, 1, 1. Point Q is then the reflection of point P through line AB. P and Q will be the points of intersection of these two circles.
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