Results 141 to 150 of about 3,914 (164)

Topological Excitations govern Ordering Kinetics in Endothelial Cell Layers

open access: yes
Ruider I   +6 more
europepmc   +1 more source

TOPOLOGICAL STRINGS

2005
AbstractType-A and type-B topological sigma models are two topological field theories in two dimensions. Although they contain a lot of information in genus 0, they turn out to be trivial for g > 1. This is essentially due to the fact that, in order to define these theories, it is necessary to consider a fixed metric in the Riemann surface.
Marcos Marino, Marino Marcos
exaly   +2 more sources

STRING TOPOLOGICAL ROBOTICS

JP Journal of Geometry and Topology, 2016
If one regards a topological space \(X\) as the configuration space of a given mechanical system, a motion planning algorithm takes pairs of configurations \((A,B)\in X\times X\) as an input and produces as an output a continuous path in \(X\) which starts at \(A\) and ends at \(B.\) In other words, a motion planning algorithm is precisely a section ...
Derfoufi, Younes, Mamouni, My Ismail
openaire   +2 more sources

Topological Symmetry of the Bosonic String

International Journal of Theoretical Physics, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kachkachi, M.   +2 more
openaire   +2 more sources

BOSONIC STRING WITH TOPOLOGICAL TERM

Modern Physics Letters A, 1991
It is shown that in D = 3 space-time dimensions there exist a topological term for the bosonic strings. The corresponding constraints satisfy the same Virasoro algebra as the ordinary bosonic strings. These results are generalized for an arbitrary dimensional space-time if we have SO (1, 2) ⊗ O (D − 3) or SO (3) ⊗ O (1, D − 4) symmetry instead of SO ...
openaire   +1 more source

On the Topological Size of Sets of Random Strings

Mathematical Logic Quarterly, 1986
A fixed natural topology over the sets of strings is considered. A set of strings A is recursively rare if for every open set U one can find recursively a witness which certifies that U is not enclosed in the closure of A. It is proved that the set of strings whose Kolmogorov complexity is bounded by a constant is nor recursively rare, moreover every ...
openaire   +2 more sources

Integrality, duality and finiteness in combinatoric topological strings

Journal of High Energy Physics, 2022
Robert de Mello Koch   +2 more
exaly  

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