Whitehead products and generalizations

Results 11 to 20 of about 281 (213)

, 2012
We study generalizations of the singlet-sector amplitude-product (AP) states in the valence-bond basis of S=1/2 quantum spin systems. In the standard AP states, the weight of a tiling of the system into valence bonds (singlets of two spins) is a product ...
Yu-Cheng Lin, Ying Tang, J. Lou, A. Sandvik +3 more
semanticscholar +1 more source

Geoeconomic variations in epidemiology, ventilation management, and outcomes in invasively ventilated intensive care unit patients without acute respiratory distress syndrome: a pooled analysis of four observational studies

Lancet Global Health, 2021
Summary Background Geoeconomic variations in epidemiology, the practice of ventilation, and outcome in invasively ventilated intensive care unit (ICU) patients without acute respiratory distress syndrome (ARDS) remain unexplored.
L. Pisani +499 more
semanticscholar +1 more source

Extensions of free groups: algebraic, geometric, and algorithmic aspects

, 2017
In this work we use geometric techniques in order to study certain natural extensions of free groups, and solve several algorithmic problems on them. To this end, we consider the family of free-abelian times free groups (Zm x Fn) as a seed towards ...
Jordi Delgado
semanticscholar +1 more source

Scale-renormalized matrix-product states for correlated quantum systems. [PDF]

Physical Review Letters, 2007
A generalization of matrix product states (MPS) for interacting quantum systems in two and three dimensions is introduced. These scale-renormalized matrix-product states (SR-MPS) are based on a coarse graining of the lattice in which the blocks at each ...
A. Sandvik
semanticscholar +1 more source

Firms' Green Responses to Environmental Regulations: A Three‐Dimensional Concurrent Engineering Perspective

Business Strategy and the Environment, EarlyView.
ABSTRACT This study investigates companies' responses to energy efficiency policies, focusing on mandatory and voluntary regulations that create a complex landscape for businesses to navigate. Using a sample of 1473 firms across 29 European countries (2002–2018), we explore the impact of legislation on green redesign—operationalized through ...
Thomas Alexopoulos +3 more
wiley +1 more source

Beyond Structural Interventions: The Human Architecture Shaping ESG Integration in Corporate Systems

Business Strategy and the Environment, EarlyView.
ABSTRACT Despite the promotion of ESG in corporate discourse, substantive integration of ESG principles into business practices remains challenging. This study applies and extends Meadows' leverage framework to examine ESG integration in UAE‐listed firms.
M. Schulte, Dimitris Christopoulos
wiley +1 more source

Environmental Management Accounting in Private Hospitals: Navigating Competing Strategic Priorities for Sustainable Decision‐Making

Business Strategy and the Environment, EarlyView.
ABSTRACT Environmental management accounting (EMA) is increasingly recognised as essential for carbon governance, accountability and net zero transitions, yet research has overlooked how sustainability is negotiated within mission‐driven but commercially exposed service organisations such as private hospitals in developing economies, a sector often ...
M. M. Swalih, Ronita Ram, Edward Tew
wiley +1 more source

Beyond Carbon: Corporate Environmental Performance Across Multiple Domains

Business Strategy and the Environment, EarlyView.
ABSTRACT We examine corporate environmental performance (CEP) as a multidimensional system rather than isolated outcomes. Combining institutional and behavioral perspectives, we analyze four domains—CO2 emissions, waste, energy, and water—using S&P 500 firms that disclosed data on all four domains (2006–2024).
Rei Uchida, Murali Chari
wiley +1 more source

Generalized product theorems for torsion invariants with applications to flat bundles

, 1972
This note announces generalizations of the product theorems for Wall invariants and Whitehead torsions due to Gersten [5], Siebenmann [7, Chapter VII], and Kwun and Szczarba [6], and applies these theorems to study torsion invariants of the total space ...
D. Anderson
semanticscholar +1 more source

Re‐Ontologizing Leadership Identity for Sustainable Business: Embedding Leaders' Decarbonization Competences in Bahrain's Sunset Industry

Business Strategy and the Environment, EarlyView.
ABSTRACT The lag in embedding leaders' decarbonization competences into sunset industry businesses (oil, gas, and petroleum), particularly in Middle Eastern hydrocarbon economies, poses an existential environmental and institutional challenge. In many such contexts, leaders' decarbonization competences remain subordinated to resource utilization and ...
John Mendy +3 more
wiley +1 more source

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