Results 31 to 40 of about 5,511 (164)

Beyond the unitarity bound in AdS/CFT_(A)dS [PDF]

, 2012
In this work we expand on the holographic description of CFTs on de Sitter (dS) and anti-de Sitter (AdS) spacetimes and examine how violations of the unitarity bound in the boundary theory are recovered in the bulk physics.
Andrade, Tomas, Uhlemann, Christoph F.
core   +1 more source

A Critical Review of Pole Clustering Techniques: Common Pitfalls, Extension to MIMO and New Enhanced Variant of the Cuckoo Search Algorithm

Optimal Control Applications and Methods, EarlyView.
Enhanced Cuckoo Search for Model Order Reduction ABSTRACT This article presents a critical review of classical and modern pole clustering techniques for model order reduction in high‐order systems. It highlights key limitations and common pitfalls encountered in traditional approaches, especially when extended to Multi‐Input Multi‐Output (MIMO) systems.
Kamel Ben Slimane, Zied Tmar, Mongi Besbes   +2 more
wiley   +1 more source

Existence and orthogonality of stable envelopes for bow varieties

Bulletin of the London Mathematical Society, EarlyView.
Abstract Stable envelopes, introduced by Maulik and Okounkov, provide a family of bases for the equivariant cohomology of symplectic resolutions. They are part of a fascinating interplay between geometry, combinatorics and integrable systems. In this expository article, we give a self‐contained introduction to cohomological stable envelopes of type A$A$
Catharina Stroppel, Till Wehrhan
wiley   +1 more source

An Ultra-Short-Term Wind Power Prediction Method Based on Quadratic Decomposition and Multi-Objective Optimization

EAI Endorsed Transactions on Energy Web
To augment the accuracy, stability, and qualification rate of wind power prediction, thereby fostering the secure and economical operation of wind farms, a method predicated on quadratic decomposition and multi-objective optimization for ultra-short ...
Hayou Chen, Zhenglong Zhang, Shaokai Tong, Peiyuan Chen, Zhiguo Wang, Hai Huang   +5 more
doaj   +1 more source

Compactifications of strata of differentials

Bulletin of the London Mathematical Society, EarlyView.
Abstract In this informal expository note, we quickly introduce and survey compactifications of strata of holomorphic 1‐forms on Riemann surfaces, that is, spaces of translation surfaces. In the last decade, several of these have been constructed, studied, and successfully applied to problems.
Benjamin Dozier
wiley   +1 more source

Maximal symplectic torus actions

Bulletin of the London Mathematical Society, EarlyView.
Abstract There are several different notions of maximal torus actions on smooth manifolds, in various contexts: symplectic, Riemannian, complex. In the symplectic context, for the so‐called isotropy‐maximal actions, as well as for the weaker notion of almost isotropy‐maximal actions, we give classifications up to equivariant symplectomorphism.
Rei Henigman
wiley   +1 more source

Economic Optimization of Hybrid Energy Storage Capacity for Wind Power Based on Coordinated SGMD and PSO

Energies
Under the dual carbon objectives, wind power penetration has accelerated markedly. However, the inherent volatility and insufficient peak regulation capability in energy storage allocation hamper efficient grid integration.
Kai Qi, Keqilao Meng, Xiangdong Meng, Fengwei Zhao, Yuefei Lü   +4 more
doaj   +1 more source

Gaussian quantum marginal problem [PDF]

, 2007
The quantum marginal problem asks what local spectra are consistent with a given spectrum of a joint state of a composite quantum system. This setting, also referred to as the question of the compatibility of local spectra, has several applications in ...
A. Botero, A. Higuchi, A. Horn, A.S. Holevo, A.S. Holevo, B. Arvind Dutta, B.M. Terhal, F.Y. Sing, G. Adesso, G. Adesso, G. Adesso, G. Giedke, G. Giedke, J. Eisert, J. Eisert, J. Eisert, J. Eisert, J. Fiurášek, L. Mirsky, M. Christandl, M. Christandl, M. Franz, M. Reck, M.A. Nielsen, P. Hyllus, R. Bhatia, R.C. Thompson, R.C. Thompson, S. Bravyi, S. Daftuar, S.L. Braunstein, T. Hiroshima, W. Hall, Y.-J. Han, Y.-K. Liu   +34 more
core   +2 more sources

The contact cut graph and a Weinstein L$\mathcal {L}$‐invariant

Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract We define and study the contact cut graph which is an analogue of Hatcher and Thurston's cut graph for contact geometry, inspired by contact Heegaard splittings (Giroux, Proceedings of the International Congress of Mathematicians, Beijing, 2002; Torisu, Internat. Math. Res. Notices (2000), 441–454).
Nickolas A. Castro, Gabriel Islambouli, Jie Min, Sümeyra Sakallı, Laura Starkston, Angela Wu   +5 more
wiley   +1 more source

Non-abelian Harmonic Oscillators and Chiral Theories

, 1993
We show that a large class of physical theories which has been under intensive investigation recently, share the same geometric features in their Hamiltonian formulation.
Alekseev A, Bott R, Bourbaki N, Faddeev L, Falceto F, Gawedzki K, Gelfand I M, Guillemin V, Hamilton R, Hasiewicz Z, Hasiewicz Z, Kirillov A A, Liebermann P, P Siemion, Pressley A, Souriau J-M, Sternberg S, Witten E, Witten E, Z Hasiewicz   +19 more
core   +1 more source