Results 121 to 130 of about 5,883,075 (295)
Land Degradation &Development, EarlyView.ABSTRACT Balancing food security and ecological sustainability has become a critical challenge for land governance in rapidly urbanizing countries. China has successfully maintained national cultivated land quantity through a comprehensive farmland protection regime.
Yuzhe Wu, Zhuofan Li, Xinyan Shen
wiley +1 more source
Land Degradation &Development, EarlyView.ABSTRACT Achieving land degradation neutrality (LDN) is critical for sustainable socio‐ecological development; however, its practical implementation is often hindered by scale mismatches between assessments and administrative units, coupled with an over‐reliance on static drivers.
Shuheng Zhang +4 more
wiley +1 more source
, 2012 From physical motivations and from geometrical interpretations of the Einstein equations, we give a justi cation of the non-triviality and non-degeneracy of Einstein bilinear form introduced in [1]
IURATO, Giuseppe
core
Land Degradation &Development, EarlyView.ABSTRACT Balancing food security, social equity, and ecological sustainability remains a persistent challenge in global agricultural systems. While economic and ecological aspects of land‐use transitions have been extensively studied, the long‐term dynamics of social functions and their interactions with other functions are less understood.
Zhiyuan Zhu, Yongzhong Feng
wiley +1 more source
Quantization of Polaritons Confined in Dielectric Structures
Laser &Photonics Reviews, EarlyView.This study addresses the limitations of the Hopfield model of strong light‐matter coupling in the case of structured dieletrics. A method to derive quantum models in the polariton basis using Bogoliubov transformation and third quantization is introduced, demonstrating how to boost interaction strength and engineer nonlocal interactions for strongly ...
Amir Rahmani +4 more
wiley +1 more source
A Class of Bilinear Forms [PDF]
Transactions of the American Mathematical Society, 1959 openaire +2 more sources
Peskine Sixfolds and Debarre–Voisin Fourfolds With Associated Cubic Fourfolds
Mathematische Nachrichten, EarlyView.ABSTRACT We develop the notion of Peskine sixfolds with associated K3 surfaces and cubic fourfolds and work out numerical conditions for when these associations occur. In discriminant 24, the first family for which there is an associated cubic fourfold, we identify the cubic explicitly.
Corey Brooke +3 more
wiley +1 more source
Symmetry, Integrability and Geometry: Methods and Applications, 2008 In this paper we prove that for any commutative (but in general non-associative) algebra A with an invariant symmetric non-degenerate bilinear form there is a graded vertex algebra V = V_0 oplus V2 oplus V3 oplus ..., such that dim V_0 = 1 and V_2 ...
Michael Roitman
doaj +1 more source
Algebras with a bilinear form, and Idempotent endomorphisms
, 2022 The category of all $k$-algebras with a bilinear form, whose objects are all pairs $(R,b)$ where $R$ is a $k$-algebra and $b\colon R\times R\to k$ is a bilinear mapping, is equivalent to the category of unital $k$-algebras $A$ for which the canonical ...
Zadeh, Leila Heidari, Facchini, Alberto
core