Results 31 to 40 of about 6,781 (120)

Exact classical solutions of nonlinear sigma models on supermanifolds [PDF]

open access: yes, 2006
We study two-dimensional nonlinear sigma models with target spaces being the complex super Grassmannian manifolds, that is, coset supermanifolds $G(m,p|n,q)\cong U(m|n)/[U(p|q)\otimes U(m-p|n-q)]$ for $0\leq p \leq m$, $0\leq q \leq n$ and $1\leq p+q ...
Berkovits   +19 more
core   +2 more sources

Seasonal to Interannual Cross‐Scale Energy Transfer Variability: Observational Insight From the Santa Barbara Channel

open access: yesGeophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Kinetic energy (KE) transfer between spatial scales contributes to the ocean's energy budget by linking scales of KE supply and KE dissipation. Numerical simulations have indicated that for scales smaller than the baroclinic deformation radius, cross‐scale KE transfer has complex spatial and temporal variability, modulated by mixed layer ...
Sara Taylor   +3 more
wiley   +1 more source

Lifshitz spacetimes from AdS null and cosmological solutions

open access: yes, 2010
We describe solutions of 10-dimensional supergravity comprising null deformations of $AdS_5\times S^5$ with a scalar field, which have $z=2$ Lifshitz symmetries.
A Adams   +72 more
core   +1 more source

Forest Loss Influences Biomass Distribution Across Trophic Groups of Amazonian Stream Insects

open access: yesFreshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Changes in resource availability caused by deforestation can negatively impact freshwater ecosystems, with implications for trophic chains. We investigated both the direct and indirect effects of forest cover and allochthonous resource availability on the biomass distribution of larvae of aquatic insects (Ephemeroptera, Plecoptera, Trichoptera
Gabriel Martins Cruz   +8 more
wiley   +1 more source

A One-Loop Test of Quantum Supergravity

open access: yes, 2013
The partition function on the three-sphere of ABJM theory and its generalizations has, at large N, a universal, subleading logarithmic term. Inspired by the success of one-loop quantum gravity for computing the logarithmic corrections to black hole ...
Bhattacharyya, Sayantani   +3 more
core   +2 more sources

Re‐evaluation of sucralose (E 955) as a food additive and evaluation of a new application on extension of use of sucralose (E 955) in fine bakery wares

open access: yesEFSA Journal, Volume 24, Issue 2, February 2026.
Abstract The present opinion deals with the re‐evaluation of sucralose (E 955) as food additive and with the safety of a proposed extension of use in food category (FC) 7.2 ‘Fine bakery wares’. Based on the available data, no safety concerns arose for genotoxicity of sucralose (E 955) and its impurities and degradation products.
EFSA Panel on Food Additives and Flavourings (FAF)   +36 more
wiley   +1 more source

Covariance Properties of Reflection Equation Algebras [PDF]

open access: yes, 1992
The reflection equations (RE) are a consistent extension of the Yang-Baxter equations (YBE) with an addition of one element, the so-called reflection matrix or $K$-matrix.
Kulish, P. P., Sasaki, R.
core   +1 more source

Regulatory network rewiring drives strain‐specific lipid accumulation response in Chlorella sorokiniana under nutrient starvation

open access: yesThe Plant Journal, Volume 125, Issue 1, January 2026.
SUMMARY Microalgae modulate lipid metabolism in response to nutrient stress, offering a promising avenue for sustainable biofuel production. However, a mechanistic understanding of the transcriptional programs driving triacylglycerol (TAG) accumulation remains limited, particularly in non‐model species.
Claudio C. Barrera‐Duarte   +3 more
wiley   +1 more source

Curvature and Solitonic Structures of Para‐Sasakian Manifolds With Schouten–van Kampen Connection on the Tangent Bundle

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates the complete lift of para‐Sasakian structures to the tangent bundle equipped with the Schouten–van Kampen connection (SVKC). By analyzing curvature tensors and soliton equations, we establish the existence of Ricci, Yamabe, and η‐Ricci solitons in the lifted setting.
Lalnunenga Colney   +3 more
wiley   +1 more source

Optimization of Soliton Structures Using Lifting Theory on Tangent Bundles of Statistical Kenmotsu Manifolds

open access: yesJournal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates the optimization of soliton structures on tangent bundles of statistical Kenmotsu manifolds through lifting theory. By constructing lifted statistical Kenmotsu structures using semisymmetric metric and nonmetric connections, we derive explicit expressions for the curvature tensor, Ricci operator, and scalar curvature. We analyze
Mohammad Nazrul Islam Khan   +3 more
wiley   +1 more source

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