Results 111 to 120 of about 42,262 (215)

A fractional‐order trace‐dev‐div inequality

open access: yesMathematische Nachrichten, Volume 298, Issue 8, Page 2493-2498, August 2025.
Abstract The trace‐dev‐div inequality in Hs$H^s$ controls the trace in the norm of Hs$H^s$ by that of the deviatoric part plus the Hs−1$H^{s-1}$ norm of the divergence of a quadratic tensor field different from the constant unit matrix. This is well known for s=0$s=0$ and established for orders 0≤s≤1$0\le s\le 1$ and arbitrary space dimension in this ...
C. Carstensen, N. Heuer
wiley   +1 more source

On quantum Poisson-Lie T-duality of WZNW models

open access: yesJournal of High Energy Physics
We study Poisson-Lie T-duality of the Wess-Zumino-Novikov-Witten (WZNW) models which are obtained from a class of Drinfel’d doubles and its generalization.
Yuho Sakatani, Yuji Satoh
doaj   +1 more source

Two classes of Lie conformal superalgebras related to the Heisenberg–Virasoro Lie conformal algebra

open access: yesJournal of Mathematical Physics
In this paper, we classify the Lie conformal superalgebras R=R0̄⊕R1̄, where R1̄ is of rank 1 and R0̄ is the Heisenberg–Virasoro Lie conformal algebra HV, which is a free C[∂]-module generated by L and H satisfying [LλL] = (∂ + 2λ)L, [LλH] = (∂ + λ)H, [HλH] = 0. Based on this, we construct two classes of Lie conformal superalgebras denoted by HVS(α) and
Jinrong Wang, Xiaoqing Yue
openaire   +2 more sources

Distinguishing Short‐Term Versus Long‐Term Responses in Cover‐Class Structured Community Dynamics: A Test With Grassland Drought Response

open access: yesEcology Letters, Volume 28, Issue 8, August 2025.
We use Integral Projection Models (IPMs) and pseudospectral theory to track short‐term (transient) dynamics of a grassland subject to experimental precipitation shifts. We show that the cover‐class structure of functional groups makes them transiently unstable but asymptotically stable, that is, disturbances initially amplify before dissipating.
Aryaman Gupta   +9 more
wiley   +1 more source

Conformal covariance in 2d conformal and integrable models, in W-algebras and in their supersymmetric extensions

open access: yes, 1999
Conformal symmetry underlies the mathematical description of various two-dimensional integrable models (e.g. for their Lax representation, Poisson algebra, zero curvature representation,...) or of conformal models (for the anomalous Ward identities ...
Gieres, Francois
core   +1 more source

Regularity of the SLE4 uniformizing map and the SLE8 trace

open access: yesProceedings of the London Mathematical Society, Volume 131, Issue 2, August 2025.
Abstract We show that the modulus of continuity of the SLE4${\rm SLE}_4$ uniformizing map is given by (logδ−1)−1/3+o(1)$(\log \delta ^{-1})^{-1/3+o(1)}$ as δ→0$\delta \rightarrow 0$. As a consequence of our analysis, we show that the Jones–Smirnov conditions for conformal removability (with quasihyperbolic geodesics) do not hold for SLE4${\rm SLE}_4 ...
Konstantinos Kavvadias   +2 more
wiley   +1 more source

Poincare gauge gravity from nonmetric gravity

open access: yesNuclear Physics B
We consider general linear gauge theory, with independent solder form and connection. These spaces have both torsion and nonmetricity. We show that the Cartan structure equations together with the defining equation for nonmetricity allow the mixed ...
James T. Wheeler
doaj  

(Almost) Ricci Solitons in Lorentzian–Sasakian Hom-Lie Groups

open access: yesAxioms
We study Lorentzian contact and Lorentzian–Sasakian structures in Hom-Lie algebras. We find that the three-dimensional sl(2,R) and Heisenberg Lie algebras provide examples of such structures, respectively.
Esmaeil Peyghan   +3 more
doaj   +1 more source

The Carrollian limit of ModMax electrodynamics

open access: yesJournal of High Energy Physics
We consider the Carrollian limit of ModMax electrodynamics, namely the limit of vanishing speed of light, for the most general, four-dimensional, duality and conformal invariant electromagnetism.
Francisco Correa   +2 more
doaj   +1 more source

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