منابع مشابه
Riemann Surfaces
Riemann introduced his surfaces in the middle of the 19th century in order to “geometrize” complex analysis. In doing so, he paved the way for a great deal of modern mathematics such as algebraic geometry, manifold theory, and topology. So this would certainly be of interest to students in these areas, as well as in complex analysis or number theory. In simple terms, a Riemann surface is a surf...
متن کاملCrystallography and Riemann Surfaces
The level set of an elliptic function is a doubly periodic point set in C. To obtain a wider spectrum of point sets, we consider, more generally, a Riemann surface S immersed in C2 and its sections (“cuts”) by C. We give S a crystallographic isometry in C2 by defining a fundamental surface element as a conformal map of triangular domains and S as its extension by reflections in the triangle edg...
متن کاملNoncommutative Riemann Surfaces
We compactify M(atrix) theory on Riemann surfaces Σ with genus g > 1. Following [1], we construct a projective unitary representation of π1(Σ) realized on L (H), with H the upper half–plane. As a first step we introduce a suitably gauged sl2(R) algebra. Then a uniquely determined gauge connection provides the central extension which is a 2–cocycle of the 2nd Hochschild cohomology group. Our con...
متن کاملQuasi Riemann surfaces
A quasi Riemann surface is defined to be a certain kind of complete metric space Q whose integral currents are analogous to the integral currents of a Riemann surface. In particular, they have properties sufficient to express Cauchy-Riemann equations on Q. The prototypes are the spaces D 0 (Σ)m of integral 0-currents of total mass m in a Riemann surface Σ (usually called the integral 0-cycles o...
متن کاملRiemann Surfaces and Differential
We present a new approach to the diierential geometry of surfaces in R 3 and R 4 that treats this theory as a \quaternioniied" version of the complex analysis and algebraic geometry of Riemann surfaces.
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ژورنال
عنوان ژورنال: Bulletin of the American Mathematical Society
سال: 1961
ISSN: 0002-9904
DOI: 10.1090/s0002-9904-1961-10548-x