Results 121 to 130 of about 2,732,155 (328)

The 2‐divisibility of divisors on K3 surfaces in characteristic 2

open access: yesMathematische Nachrichten, EarlyView.
Abstract We show that K3 surfaces in characteristic 2 can admit sets of n$n$ disjoint smooth rational curves whose sum is divisible by 2 in the Picard group, for each n=8,12,16,20$n=8,12,16,20$. More precisely, all values occur on supersingular K3 surfaces, with exceptions only at Artin invariants 1 and 10, while on K3 surfaces of finite height, only n=
Toshiyuki Katsura   +2 more
wiley   +1 more source

Symbolic powers of monomial ideals and vertex cover algebras [PDF]

open access: green, 2006
Jürgen Herzog   +2 more
openalex   +1 more source

A unified approach of catastrophic events [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2004
Although there is an accumulated charge of theoretical, computational, and numerical work, like catastrophe theory, bifurcation theory, stochastic and deterministic chaos theory, there is an important feeling that these matters do not completely cover ...
S. Nikolopoulos   +3 more
doaj  

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

Lie algebras and coverings [PDF]

open access: yesCommentarii Mathematici Helvetici, 1994
openaire   +1 more source

Exponential Stability of Higher Order Fractional Neutral Stochastic Differential Equation Via Integral Contractors

open access: yesMathematical Methods in the Applied Sciences, Volume 48, Issue 6, Page 6425-6446, April 2025.
ABSTRACT The well‐posedness results for mild solutions to the fractional neutral stochastic differential system with Rosenblatt process with Hurst index Ĥ∈12,1$$ \hat{H}\in \left(\frac{1}{2},1\right) $$ is discussed in this article. To demonstrate the results, the concept of bounded integral contractors is combined with the stochastic result and ...
Dimplekumar N. Chalishajar   +3 more
wiley   +1 more source

Regimes and Mechanisms of Inflammation Described by a Reaction–Diffusion System

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Inflammation is a biological response of the immune system to external stimuli such as injury or infection. It plays an important role in various diseases including atherosclerosis, cancer, and neurodegenerative diseases. This work presents a generic inflammation model based on reaction–diffusion equations that describes the concentrations of ...
W. El Hajj, N. El Khatib, V. Volpert
wiley   +1 more source

Scenario‐free robust optimization algorithm for IMRT and IMPT treatment planning

open access: yesMedical Physics, EarlyView.
Abstract Background Robust treatment planning algorithms for intensity modulated proton therapy (IMPT) and intensity modulated radiation therapy (IMRT) allow for uncertainty reduction in the delivered dose distributions through explicit inclusion of error scenarios.
Remo Cristoforetti   +2 more
wiley   +1 more source

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