Results 31 to 40 of about 2,518 (86)

D-branes as a Bubbling Calabi-Yau

, 2007
We prove that the open topological string partition function on a D-brane configuration in a Calabi-Yau manifold X takes the form of a closed topological string partition function on a different Calabi-Yau manifold X_b. This identification shows that the
A. Iqbal, A. Okounkov, C. Faber, C.H. Taubes, J. Gomis, J. Gomis, J.M.F. Labastida, Jaume Gomis, M. Aganagic, M. Aganagic, N. Saulina, R. Gopakumar, R. Gopakumar, R. Gopakumar, S. Gukov, S. Koshkin, T. Okuda, Takuya Okuda   +17 more
core   +1 more source

Engineering Topological Phases with a Traveling‐Wave Spacetime Modulation

Laser &Photonics Reviews, EarlyView.
Time‐varying systems have garnered considerable attention due to their unique potential in manipulating electromagnetic waves. Here, a novel class of topological spacetime crystals with a traveling‐wave modulation is introduced. By manipulating material anisotropy, one can engineer light angular momentum and non‐trivial topological phases characterized
João C. Serra, Mário G. Silveirinha
wiley   +1 more source

Hofer-Zehnder capacity and length minimizing Hamiltonian paths

, 2001
We use the criteria of Lalonde and McDuff to show that a path that is generated by a generic autonomous Hamiltonian is length minimizing with respect to the Hofer norm among all homotopic paths provided that it induces no non-constant closed trajectories
Dusa McDuff, Floer, Hofer, Hofer, Jennifer Slimowitz, Liu, McDuff, McDuff, McDuff, McDuff, Piunikhin, Polterovich, Polterovich, Schwarz, Siegel   +14 more
core   +2 more sources

Proprioceptive integration in motor control

The Journal of Physiology, EarlyView.
Abstract figure legend A virtual reality (VR)‐based reaching task reveals how proprioceptive feedback affects the perceived and actual movement speed of active movements, as well as the perceived hand position. When an antagonist vibration was applied, subjects tended to overestimate their movement speed while also decreasing their actual movement ...
Erik Skjoldan Mortensen, Mark Schram Christensen   +1 more
wiley   +1 more source

Isoperimetric inequalities on slabs with applications to cubes and Gaussian slabs

Communications on Pure and Applied Mathematics, Volume 79, Issue 4, Page 1012-1072, April 2026.
Abstract We study isoperimetric inequalities on “slabs”, namely weighted Riemannian manifolds obtained as the product of the uniform measure on a finite length interval with a codimension‐one base. As our two main applications, we consider the case when the base is the flat torus R2/2Z2$\mathbb {R}^2 / 2 \mathbb {Z}^2$ and the standard Gaussian measure
Emanuel Milman
wiley   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, Volume 36, Issue 21, 12 March 2026.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Orbital Hybridization‐Mediated Decoupling of Electrocatalytic Functions for Paired CO2 Electrosynthesis

Advanced Science, Volume 13, Issue 17, 23 March 2026.
This study constructs a dual‐scale Ag‐based catalyst on CeO2 nanorods via a facet‐guided strategy. This catalyst can induce a cascaded orbital hybridization effect, which synergistically optimizes oxygen vacancy stability, CO desorption kinetics, and charge transfer efficiency.
Youjia Wang, Bochen Tian, Yuxin Tian, Wenchao Wang, Xin Ma, Yansheng Liu, Junwei Hou   +6 more
wiley   +1 more source

The Torus Operator in Holography

, 2017
We consider the non-local operator ${\mathcal T}$ defined in 2-dimensional CFTs by the path integral over a torus with two punctures. Using the AdS/CFT correspondence, we study the spectrum and ground state of this operator in holographic such CFTs in ...
Marolf, Donald, Wien, Jason
core   +1 more source

A Framework for Parametric and Predictive Uncertainty Quantification in the E3SM Land Model: Assessing Site and Observable Generalizability

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 3, March 2026.
Abstract Quantifying parametric uncertainty using observations from individual sites provides a critical foundation for Earth system modeling, serving as a necessary first step before scaling up to regional or global applications. This study introduces a novel computational framework designed to enhance model predictability by reducing parametric ...
Zhongjing Jiang, Natalie M. Isenberg, Tamanna Subba, Hyun‐Myung Woo, Shawn P. Serbin, Nathan M. Urban, Chongai Kuang   +6 more
wiley   +1 more source

Market Insurance and Risk Pooling in U.S. Crop Insurance

Agricultural Economics, Volume 57, Issue 2, March 2026.
ABSTRACT A common assumption is that multiple‐peril crop insurance markets suffer from market failures, thus justifying government intervention in the form of premium subsidies, operating allowances, and reinsurance agreements. One prominent rationale for intervention involves geographic correlation in agricultural production which leads to systemic ...
Fan Fan, Yong Liu, A. Ford Ramsey, David J. Leatham   +3 more
wiley   +1 more source