Results 1 to 10 of about 329 (150)

Generalized Riemann-Liouville fractional Bézier curve and its applications in engineering surface

open access: yesAlexandria Engineering Journal, 2023
Modeling of free-form curves and surfaces is vital in the manufacturing industry and engineering. Curves and surfaces that have flexible shapes and adjustable lengths and sizes are a necessity to fulfill the needs of the manufacturing industry.
Syed Ahmad Aidil Adha Said Mad Zain   +2 more
doaj   +1 more source

Super Riemann Surfaces and Fatgraphs

open access: yesUniverse, 2023
Our goal is to describe superconformal structures on super Riemann surfaces (SRSs) based on data assigned to a fatgraph. We start from the complex structures on punctured (1|1)-supermanifolds, characterizing the corresponding moduli and the deformations ...
Albert S. Schwarz, Anton M. Zeitlin
doaj   +1 more source

The Number of Ramified Covering of a Riemann Surface by Riemann Surface [PDF]

open access: yesCommunications in Mathematical Physics, 2000
LaTex, 14 ...
Li, An-Min, Zhao, Guosong, Zheng, Quan
openaire   +2 more sources

Riemann-Roch theorem and Kodaira-Serre duality

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2022
The Riemann-Roch theorem is of utmost importance and a vital tool to the fields of complex analysis and algebraic geometry, specifically in the algebraic geometric theory of compact Riemann surfaces.
Lesfari A.
doaj   +1 more source

Electrostatics and Riemann surfaces [PDF]

open access: yesEuropean Journal of Physics, 2020
Abstract Using techniques from geometry and complex analysis in their simplest form, we present a derivation of electric fields on surfaces with non-trivial topology. A byproduct of this analysis is an intuitive visualization of elliptic functions when their argument is complex-valued.
Spencer Tamagni, Costas Efthimiou
openaire   +2 more sources

Noncommutative Riemann Surfaces [PDF]

open access: yesProceedings of Quantum aspects of gauge theories, supersymmetry and unification — PoS(tmr99), 2000
We compactify M(atrix) theory on Riemann surfaces Sigma with genus g>1. Following [1], we construct a projective unitary representation of pi_1(Sigma) realized on L^2(H), with H the upper half-plane. As a first step we introduce a suitably gauged sl_2(R) algebra. Then a uniquely determined gauge connection provides the central extension which is a 2-
G. BERTOLDI   +3 more
openaire   +3 more sources

Horocycles on Riemann surfaces [PDF]

open access: yesProceedings of the American Mathematical Society, 1993
By the Collar Theorem, every puncture on a hyperbolic Riemann surface with punctures has a horocyclic neighborhood of area 2 2
Seppälä, Mika, Sorvali, Tuomas
openaire   +4 more sources

Hyperbolic geometry and closed bosonic string field theory. Part I. The string vertices via hyperbolic Riemann surfaces

open access: yesJournal of High Energy Physics, 2019
The main geometric ingredient of the closed string field theory are the string vertices, the collections of string diagrams describing the elementary closed string interactions, satisfying the quantum Batalian-Vilkovisky master equation.
Seyed Faroogh Moosavian, Roji Pius
doaj   +1 more source

A sufficiently complicated noded Schottky group of rank three

open access: yesCubo, 2020
In 1974, Marden proved the existence of non-classical Schottky groups by a theoretical and non-constructive argument. Explicit examples are only known in rank two; the first one by Yamamoto in 1991 and later by Williams in 2009.
Rubén A. Hidalgo
doaj   +1 more source

Crystallography and Riemann surfaces [PDF]

open access: yesDiscrete & Computational Geometry, 2001
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 C^2 and its sections (``cuts'') by C. We give S a crystallographic isometry in C^2 by defining a fundamental surface element as a conformal map of triangular domains and S as ...
openaire   +2 more sources

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