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Multiplicities of some graded сocharacters of the matrix superalgebra M(2,2)(F) [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
Let $F$ be an arbitrary field of characteristic zero, and let $M^{(m,k)}(F)$ be a matrix superalgebra over $F$. It is known from the theory of algebras with polynomial identities that the superalgebra $M^{(m,k)}(F)$ has a finite basis of $Z_2$-graded ...
Antonov, Stepan Yuryevich   +1 more
doaj   +1 more source

The ecology of hope: Building rainbows in education systems

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Hope is frequently invoked in education, yet rarely theorised. Where it has been theorised, it has been understood in two largely separate ways: as an individual psychological capacity, in the positive‐psychology tradition and as a critical‐emancipatory stance, in the pedagogy of hope.
Jennifer Achari
wiley   +1 more source

The Corporate Sustainability Puzzle: From Additive Frameworks to the Dynamic Sustainability System (DSS)

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Corporate sustainability research is rich but fragmented where influential frameworks illuminate important aspects of sustainability dynamics, yet they are often used in parallel rather than connected through a shared explanatory logic of change. This paper addresses that corporate sustainability puzzle through a targeted literature review and
Omaima A. G. Hassan
wiley   +1 more source

Squares of characters that are the sum of all irreducible characters

open access: yesIllinois Journal of Mathematics, 1998
Consider the groups satisfying the following condition: (*) Let \(G\) be a nonidentity finite group for which there exists an irreducible character \(\chi\) such that \(\chi^2=\sum_{\psi\in\text{Irr}(G)}\psi\). It follows from (*) that \(\chi\) is faithful, real-valued (Theorem 2.4) and the center of \(G\) must be trivial.
Gagola, S. M., Lewis, M. L.
openaire   +3 more sources

Chiari I Malformation: Review and Update of Current Treatment Options

open access: yesClinical Anatomy, EarlyView.
ABSTRACT The pathophysiology of Chiari malformation type I (CM‐I) is complex, involving structural abnormalities at the craniovertebral junction that result in herniation of the cerebellar tonsils through the foramen magnum. In this study, we aim to present and evaluate current treatment options for CM‐I, with a focus on evidence‐based clinical ...
Jordan J. Lo   +11 more
wiley   +1 more source

A saturation property for powers of irreducible characters.

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1994
A (reducible) character of a semisimple Lie algebra is saturated if for each of its dominant weights, the corresponding irreducible character is a summand in its orthogonal decomposition. A character is eventually saturated if some power is saturated. It is shown that any irreducible character whose highest weight is in the interior of the Weyl chamber
openaire   +1 more source

A Meta‐Analytic Review of Board Characteristics and Carbon Emission Disclosure: The Moderating Effect of Contextual Factors

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The relationship between board governance and corporate carbon emission disclosure remains persistently inconsistent across the empirical literature, despite decades of accumulated evidence. Drawing on agency, stakeholder, legitimacy, institutional, and upper echelons perspectives within a single analytical framework, we conduct a three‐level ...
Mohamed Hegazy   +2 more
wiley   +1 more source

Integrating Behavioural Sustainability Into Corporate Strategy: A Systematic Literature Review and Conceptual Framework

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Behavioural sustainability has emerged as a strategically significant construct for understanding how sustainability becomes embedded in organisational routines, decisions, and governance systems rather than remaining at the level of symbolic commitment.
Cedric Marvin Nkiko
wiley   +1 more source

Quenching the Hubbard Model: Comparison of Nonequilibrium Green's Function Methods

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We benchmark nonequilibrium Green's function (NEGF) approaches for interaction quenches in the half‐filled Fermi–Hubbard model in one and two dimensions. We compare fully self‐consistent two‐time Kadanoff–Baym equations (KBE), the generalized Kadanoff–Baym ansatz (GKBA), and the recently developed NEGF‐based quantum fluctuations approach (NEGF‐
Jan‐Philip Joost   +3 more
wiley   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

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