Results 51 to 60 of about 143,594 (316)

Geometry of Deligne cohomology

open access: yes, 1996
It is well known that degree two Deligne cohomology groups can be identified with groups of isomorphism classes of holomorphic line bundles with connections. There is also a geometric description of degree three Deligne cohomology, due to J-L.
Gajer, Pawel
core   +2 more sources

Isomorphisms and homeomorphisms of a class of graphs and spaces

open access: yesaequationes mathematicae, 2002
We solve the isomorphism problem for the whole class of Lins-Mandel gems (graphs encoded manifolds). We also present certain homeomorphisms of branched cyclic coverings of two-bridge hyperbolic links. As a consequence, we prove that, in in a wide subset of interesting cases, the isomorphism conditions for Lins-Mandel gems are equivalent to the ...
Lins, S., Mulazzani, M.
openaire   +4 more sources

Climate Change Mitigation Takes the Lead: EU Taxonomy‐Aligned and Eligible Activities in Relation to Debt Financing

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study assesses the degree of alignment with and eligibility to the EU Taxonomy of non‐financial firms and investigates its relationship with their Cost of Debt (CoD). The empirical analysis is based on a sample of 306 non‐financial firms listed on the Stoxx Europe 600 Index across 15 European countries. Taxonomy‐related data were manually
Fabio Rizzato   +3 more
wiley   +1 more source

On the Graph Isomorphism Completeness of Directed and Multidirected Graphs

open access: yesMathematics
The category of directed graphs is isomorphic to a particular category whose objects are labeled undirected bipartite graphs and whose morphisms are undirected graph morphisms that respect the labeling. Based on this isomorphism, we begin by showing that
Sebastian Pardo-Guerra   +2 more
doaj   +1 more source

Corruption Control and Corporate Hazardous Waste Emissions: Cross‐Country Evidence and the Moderating Role of Agenda 2030

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The aim of this study is to examine the impact of corruption control, as a public institutional mechanism, on hazardous waste emissions of private sector entities. We also examine the extent to which Agenda 2030 moderates the relationship. We analyse data from the top 500 global companies.
Babajide Oyewo   +3 more
wiley   +1 more source

Isomorphisms between pattern classes [PDF]

open access: yesJournal of Combinatorics, 2015
11 ...
Albert, M. H.   +2 more
openaire   +4 more sources

Do Governance Structures Drive Green Building Adoption? A Machine Learning Approach With Random Forests

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines the determinants of firms' propensity to adopt green buildings in the Euro Stoxx 300 and the S&P 500 indices, during 2012–2023. Using random forest binary classifiers, we assess the relative importance of financial, sectoral, geographic, and climate governance predictors and uncover nonlinear relationships often overlooked ...
María del Carmen Valls Martínez   +3 more
wiley   +1 more source

K-theory and phase transitions at high energies

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2016
The duality between E8xE8 heteritic string on manifold K3xT2 and Type IIA string compactified on a Calabi-Yau manifold induces a correspondence between vector bundles on K3xT2 and Calabi-Yau manifolds.
T. V. Obikhod
doaj   +1 more source

Representations of group rings and groups [PDF]

open access: yesInternational Journal of Group Theory, 2018
An isomorphism between the group ring of a finite group and a ring of certain block diagonal matrices is established. It is shown that for any group ring matrix $A$ of $mathbb{C} G$ there exists a matrix $U$ (independent of $A$) such that $U^{-1}AU= diag(
Ted Hurley
doaj   +1 more source

The size of a stratifying system can be arbitrarily large

open access: yesComptes Rendus. Mathématique, 2023
In this short note we construct two families of examples of large stratifying systems in module categories of algebras. The first examples consist on stratifying systems of infinite size in the module category of an algebra $A$.
Treffinger, Hipolito
doaj   +1 more source

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