Results 51 to 60 of about 1,417 (187)

Genus two modular bootstrap

open access: yesJournal of High Energy Physics, 2019
We study the Virasoro conformal block decomposition of the genus two partition function of a two-dimensional CFT by expanding around a ℤ3-invariant Riemann surface that is a three-fold cover of the Riemann sphere branched at four points, and explore ...
Minjae Cho, Scott Collier, Xi Yin
doaj   +1 more source

A Re‐Examination of Foundational Elements of Cosmology

open access: yesFortschritte der Physik, Volume 74, Issue 3, March 2026.
ABSTRACT This paper undertakes a conceptual re‐examination of several foundational elements of cosmology through the lens of spacetime symmetries. A new derivation of the Friedmann–Lemaître–Robertson–Walker metric is obtained by a careful conceptual examination of rotations and translations on generic manifolds, followed by solving the rotational and ...
Lavinia Heisenberg
wiley   +1 more source

The super period matrix with Ramond punctures in the supergravity formulation

open access: yesNuclear Physics B, 2015
In a very recent preprint, Witten showed how to construct a g|r×g|r super period matrix for super Riemann surfaces of genus g with 2r Ramond punctures, which is symmetric in the Z2 graded sense.
Eric D'Hoker, Duong H. Phong
doaj   +1 more source

Model Validation of M‐I Coupling in SWMF

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract The accurate modeling of field‐aligned currents (FAC) and electron precipitation is critical for understanding magnetosphere‐ionosphere coupling and improving space weather predictions. This study evaluates the performance of the SWMF in replicating observed FAC magnitudes and distributions, as well as electron precipitation during storms and ...
Tre'Shunda James, Alex Glocer
wiley   +1 more source

Kernel function and integral representations on Klein surfaces

open access: yesElectronic Journal of Differential Equations, 2017
Some representation theorems for the solutions of the Dirichlet problem and the Neumann problem on Klein surfaces are proved by using an analogue of the harmonic kernel function on symmetric Riemann surfaces.
Monica Rosiu
doaj  

Deformaciones isométricas infinitesimales de una clase de superficies pegadas

open access: yesRevista de Matemática: Teoría y Aplicaciones, 2009
In this work the sufficient condition of rigidity of a stuck 4-dimensional surface in the Euclidean 6-dimensional space is demonstrated. This surface represents in himself, the product of Riemann of two surfaces, each one of which it is in the Euclidean ...
Olman Trejos
doaj   +1 more source

Synthesis of a magnetic π-extended carbon nanosolenoid with Riemann surfaces. [PDF]

open access: yesNat Commun, 2022
Wang J   +10 more
europepmc   +1 more source

Marine Snow Dynamics in the NE Gulf of Mexico: Particle Abundance, Characteristics, and Impacts on Deepwater Horizon Oil Sedimentation

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract The Deepwater Horizon (DWH) oil spill in the NE Gulf of Mexico in 2010 was the largest accidental spill globally. During and after the spill, oil was incorporated into marine snow (marine‐oil‐snow or MOS) and sedimented to the seafloor, accounting for ∼21% of the oil released.
Kendra L. Daly   +6 more
wiley   +1 more source

Teichmüller Theory of Bordered Surfaces

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2007
We propose the graph description of Teichmüller theory of surfaces with marked points on boundary components (bordered surfaces). Introducing new parameters, we formulate this theory in terms of hyperbolic geometry.
Leonid O. Chekhov
doaj  

2-Rényi CCNR negativity of compact boson for multiple disjoint intervals

open access: yesJournal of High Energy Physics
We investigate mixed-state bipartite entanglement between multiple disjoint intervals using the computable cross-norm criterion (CCNR). We consider entanglement between a single interval and the union of remaining disjoint intervals, and compute 2-Rényi ...
Himanshu Gaur
doaj   +1 more source

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