Results 31 to 40 of about 2,187,228 (292)

Action-Angle variables for the Gel'fand-Dikii flows

open access: yes, 1997
Using the scattering transform for $n^{th}$ order linear scalar operators, the Poisson bracket found by Gel'fand and Dikii, which generalizes the Gardner Poisson bracket for the KdV hierarchy, is computed on the scattering side.
C. S. Gardner   +10 more
core   +1 more source

Superconformal Sigma Models in Higher Than Two Dimensions [PDF]

open access: yes, 1994
Rigidly superconformal sigma models in higher than two dimensions are constructed. These models rely on the existence of conformal Killing spinors on the $p+1$ dimensional worldvolume $(p\le 5)$, and homothetic conformal Killing vectors in the $d ...
Abraham   +12 more
core   +2 more sources

Conformal Newton–Hooke algebras, Niederer's transformation and Pais–Uhlenbeck oscillator

open access: yesPhysics Letters B, 2014
Dynamical systems invariant under the action of the l-conformal Newton–Hooke algebras are constructed by the method of nonlinear realizations. The relevant first order Lagrangians together with the corresponding Hamiltonians are found.
Krzysztof Andrzejewski
doaj   +1 more source

Frame-like Actions for Massless Mixed-Symmetry Fields in Minkowski space. Fermions

open access: yes, 2010
A frame-like action for massless mixed-symmetry fermionic fields in Minkowski space is constructed.
Skvortsov, E. D., Zinoviev, Yu. M.
core   +1 more source

Thurston boundary of Teichm\"uller spaces and the commensurability modular group [PDF]

open access: yes, 1999
If $p : Y \to X$ is an unramified covering map between two compact oriented surfaces of genus at least two, then it is proved that the embedding map, corresponding to $p$, from the Teichm\"uller space ${\cal T}(X)$, for $X$, to ${\cal T}(Y)$ actually ...
Biswas, Indranil   +2 more
core   +3 more sources

Jordanian deformations of the AdS_5xS^5 superstring [PDF]

open access: yes, 2014
We consider Jordanian deformations of the AdS_5xS^5 superstring action. The deformations correspond to non-standard q-deformation. In particular, it is possible to perform partial deformations, for example, only for the S^5 part.
Kawaguchi, Io   +2 more
core   +3 more sources

Supersymmetric Field Theories on Noncommutative Spaces

open access: yes, 2002
Supersymmetric field theories on noncommutative spaces are constructed. We present two different representations of noncommutative space, but we can obtain supersymmetry algebla and supersymmetric Yang-Mills action independent of its representation. As a
Habara, Yoshinobu
core   +2 more sources

Canonical Equivalence between Super D-string and Type IIB Superstring [PDF]

open access: yes, 1998
We show that the super D-string action is canonically equivalent to the type IIB superstring action with a world-sheet gauge field. Canonical transformation to the type IIB theory with dynamical tension is also constructed to establish the SL(2,Z ...
Igarashi, Yuji   +3 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Opening up Corpus FinSL: enriching corpus analysis with linguistic ethnography in a study of constructed action

open access: yesLinguistics
Corpus methods are now established within the field of signed language linguistics. Empirical investigations of signed language corpora have challenged many early assumptions about the nature of deaf community signed languages, while making us more aware
Puupponen Anna   +7 more
doaj   +1 more source

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