Results 21 to 30 of about 3,914 (164)
Deformations of topological open strings [PDF]
Journal of High Energy Physics, 2001 LaTeX 30 pages, corrected ...
Hofman, C., Ma, W.K.
openaire +4 more sources
Topological Open Strings on Orbifolds [PDF]
Communications in Mathematical Physics, 2010 38 ...
Bouchard, V +3 more
openaire +4 more sources
String topology in three flavors [PDF]
EMS Surveys in Mathematical Sciences, 2023 We describe two major string topology operations, the Chas–Sullivan product and the Goresky–Hingston coproduct, from geometric and algebraic perspectives. The geometric construction uses Thom–Pontrjagin intersection theory while the algebraic construction is phrased in terms of Hochschild homology.
Naef, Florian +2 more
openaire +4 more sources
Journal of the European Mathematical Society, 2007 We use the computational power of rational homotopy theory to provide an explicit cochain model for the loop product and the string bracket of a 1-connected closed manifold M . We prove that the loop homology of
Félix, Yves +2 more
openaire +4 more sources
Topological amplitudes in string theory [PDF]
Nuclear Physics B, 1994 We show that certain type II string amplitudes at genus $g$ are given by the topological partition function $F_g$ discussed recently by Bershadsky, Cecotti, Ooguri and Vafa. These amplitudes give rise to a term in the four-dimensional effective action of the form $\sum_g F_g W^{2g}$, where $W$ is the chiral superfield of $N=2$ supergravitational ...
Antoniadis, I. +3 more
openaire +2 more sources
Bifurcation of a topological skyrmion string
Physical Review B, 2022 6 pages, 3 ...
Xia, Jing +8 more
openaire +3 more sources
Topology of strings: Median string is NP-complete
Theoretical Computer Science, 2000 Given a set of strings, the problem of finding a string that minimises its distance to the set is directly related with problems frequently encountered in areas involving pattern recognition or computational biology. Based on the Levenshtein (or edit) distance, different definitions of distances between a string and a set of strings can be adopted.
Colin de la Higuera +1 more
openaire +1 more source
Direct integration of the topological string [PDF]
Journal of High Energy Physics, 2007 We present a new method to solve the holomorphic anomaly equations governing the free energies of type B topological strings. The method is based on direct integration with respect to the non-holomorphic dependence of the amplitudes, and relies on the interplay between non-holomorphicity and modularity properties of the topological string amplitudes ...
Grimm, Thomas W. +3 more
openaire +5 more sources
D=5 holomorphic Chern-Simons and the pure spinor superstring
Journal of High Energy Physics, 2023 The physical states of D=5 holomorphic Chern-Simons theory correspond to on-shell D=10 open superstring states in the cohomology of q +, where q + is one of the 16 spacetime supersymmetry generators.
Nathan Berkovits
doaj +1 more source
Refined topological amplitudes from the Ω-background in string theory
Journal of High Energy Physics, 2022 It was recently shown that the N $$ \mathcal{N} $$ = 2 string topological amplitudes in the heterotic weak coupling limit generate a six-dimensional Melvin space, providing a description of the Ω-background in string theory, where string propagation can ...
Carlo Angelantonj +3 more
doaj +1 more source