Results 251 to 260 of about 2,227,858 (357)

Global and microlocal aspects of Dirac operators: Propagators and Hadamard states

open access: yesMathematische Nachrichten, EarlyView.
Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
wiley   +1 more source

Equivariant geometric convolutions for dynamical systems on vector and tensor images. [PDF]

open access: yesPhilos Trans A Math Phys Eng Sci
Gregory WG   +5 more
europepmc   +1 more source

Representation-finite trivial extension algebras

open access: bronze, 1984
Ibrahim Assem   +2 more
openalex   +1 more source

Unveiling the Charisma of Artificial Intelligence: How Voice Assistants Captivate Users and Emotionally Influence User Experience

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT Although studies have explored user experience (UX) with artificial intelligence (AI)‐powered voice assistants (VAs), the cognitive, psychological, and emotional factors affecting user engagement and experience with VAs have yet to be investigated in depth. Drawing on cognitive absorption and broaden‐and‐build theories, this study investigates
Bibaswan Basu   +2 more
wiley   +1 more source

Are Operating Margin, Markup and Unit Margin Good for Profit? An Approach Based on Microeconomic Theory

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT Managers often say that they want to make their company more profitable by increasing the unit margin, operating margin, or margin rate, making these strategic objectives. There is some confusion in their language, as these three metrics seem to be equivalent to maximum profit.
Louis de Mesnard
wiley   +1 more source

Cholinergic System Changes in Dopa‐Unresponsive Freezing of Gait in Parkinson's Disease

open access: yesMovement Disorders, EarlyView.
Abstract Background Freezing of gait (FoG) is a debilitating mobility disturbance that becomes increasingly resistant to dopaminergic pharmacotherapies with advancing Parkinson's disease (PD). The pathophysiology underlying the response of FoG to dopaminergic treatment is poorly understood.
Kelvin L. Chou   +6 more
wiley   +1 more source

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