Results 71 to 80 of about 28,894 (211)

Ambient connections realising conformal Tractor holonomy

open access: yes, 2006
For a conformal manifold we introduce the notion of an ambient connection, an affine connection on an ambient manifold of the conformal manifold, possibly with torsion, and with conditions relating it to the conformal structure.
A Čap   +10 more
core   +3 more sources

Embracing new practices in plant breeding for agroecological transition: A diversity‐driven research agenda

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Plant breeding for agroecological transition (AET) holds the potential to transform agriculture by fostering crop diversification and empowering farmers through collaborative, inter‐ and transdisciplinary research. By adopting a systemic, co‐learning approach, we can deepen our understanding of the complex interactions between plant diversity ...
Myriam Adam   +19 more
wiley   +1 more source

Towards a Geometrization of Renormalization Group Histories in Asymptotic Safety

open access: yesUniverse, 2021
Considering the scale-dependent effective spacetimes implied by the functional renormalization group in d-dimensional quantum Einstein gravity, we discuss the representation of entire evolution histories by means of a single, (d+1)-dimensional manifold ...
Renata Ferrero, Martin Reuter
doaj   +1 more source

Harmonic forms on ALE Ricci-flat 4-manifolds [PDF]

open access: green
In this paper, we compute the expansion of some harmonic functions and 1-forms on ALE Ricci-flat 4-manifolds.
Gao Chen, Yan Hao
openalex   +3 more sources

The Potential Economic and Public Health Impact of MDMA‐Assisted Group Therapy for PTSD in Ukraine

open access: yesWorld Medical &Health Policy, EarlyView.
ABSTRACT The war in Ukraine has led to widespread trauma, with 6.4 million people suffering from severe, chronic posttraumatic stress disorder (PTSD). This study evaluates the cost‐effectiveness and societal impact of implementing modified group MDMA‐assisted therapy (MAT), with supplemental individual therapy for PTSD treatment in Ukraine.
Elliot Marseille   +2 more
wiley   +1 more source

The quantum non-linear σ-model RG flow and integrability in wormhole geometries

open access: yesNuclear Physics B, 2023
The target space of the non-linear σ-model is a Riemannian manifold. Although it can be any Riemannian metric, there are certain physically interesting geometries which are worth to study.
Oscar Lasso Andino   +1 more
doaj   +1 more source

Examples of asymptotically conical Ricci-flat Kähler manifolds [PDF]

open access: yesMathematische Zeitschrift, 2009
32 pages, 1 figure Some material added on embeddings of cones and some minor corrections ...
openaire   +3 more sources

A complex network perspective on brain disease

open access: yesBiological Reviews, EarlyView.
ABSTRACT If brain anatomy and dynamics have a complex network structure as it has become standard to posit, it is reasonable to assume that such a structure should play a key role not only in brain function but also in brain dysfunction. However, exactly how network structure is implicated in brain damage and whether at least some pathologies can be ...
David Papo, Javier M. Buldú
wiley   +1 more source

Dynamics of Lp multipliers on harmonic manifolds

open access: yesElectronic Research Archive, 2022
Let $ X $ be a complete, simply connected harmonic manifold of purely exponential volume growth. This class contains all non-flat harmonic manifolds of nonpositive curvature, and in particular all known examples of non-compact harmonic manifolds except ...
Kingshook Biswas , Rudra P. Sarkar
doaj   +1 more source

Levi-Civita Ricci-flat metrics on compact complex manifolds [PDF]

open access: yesThe Journal of Geometric Analysis, 2019
In this paper, we study the geometry of compact complex manifolds with Levi-Civita Ricci-flat metrics and prove that compact complex surfaces admitting Levi-Civita Ricci-flat metrics are Kahler Calabi-Yau surfaces or Hopf surfaces.
Jie He, Xiaokui Yang, Kefeng Liu
openaire   +3 more sources

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