Results 61 to 70 of about 228 (169)
Global Natural Soil N2O Emissions: An Analysis With a Global Biogeochemistry Model From 1990 to 2023
Global Biogeochemical Cycles, Volume 40, Issue 4, April 2026.Abstract Atmospheric N2O, the dominant ozone‐depleting substance and a potent greenhouse gas, has risen notably over recent decades. Using a process‐based model, we simulated the sensitivity of N2O emissions from undisturbed natural soils to the representation of historical land‐cover change from 1990 to 2023 by factoring the effects of atmospheric ...
Ye Yuan, Qianlai Zhuang
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Journal of Ecology, Volume 114, Issue 4, April 2026.We compared soil organic carbon (SOC) across six savanna–forest boundaries in South Africa. Surprisingly, savanna and forest soils contained comparable SOC stocks. While vegetation change shifted the carbon source from C4‐grasses to C3‐trees, total carbon storage was driven by local soil texture (clay/silt), proving that increasing tree cover does not ...
Yong Zhou +5 more
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Analysing time-fractional exotic options via efficient local meshless method
Results in Physics, 2020 In this article, we analyse the numerical simulation of the time-fractional Black-Scholes model governing butterfly spread option, digital option and double barrier option.
Mustafa Inc +5 more
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Parameter Estimation for a Fractional Black–Scholes Model with Jumps from Discrete Time Observations
Mathematics, 2022 We consider a stochastic differential equation (SDE) governed by a fractional Brownian motion (BtH) and a Poisson process (Nt) associated with a stochastic process (At) such that: dXt=μXtdt+σXtdBtH+AtXt−dNt,X0=x0>0.
John-Fritz Thony, Jean Vaillant
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A universal difference method for time-space fractional Black-Scholes equation [PDF]
Advances in Difference Equations, 2016 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiaozhong, Yang +3 more
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Race‐related research in economics
Economica, Volume 93, Issue 370, Page 403-438, April 2026.Abstract Issues of racial justice and economic inequalities between racial and ethnic groups have risen to the top of public debate. Economists' ability to contribute to these debates is based on the body of race‐related research. We study the volume and content of race‐related research in economics.
Arun Advani +4 more
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Urban and Power Plant NOx Emissions in Sub‐Saharan Africa Inferred From TROPOMI
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 4, 28 February 2026.Abstract Nitrogen oxides (NOx) emissions are increasing rapidly in Sub‐Saharan Africa, affecting local air quality. Outside South Africa, most hotspots are relatively small, posing a challenge for traditional top‐down inversions. We tailor an existing top‐down wind rotation and Gaussian plume fit inversion to suit the relatively small NOx hotspots for ...
Eloise A. Marais +6 more
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A class of intrinsic parallel difference methods for time-space fractional Black–Scholes equation
Advances in Difference Equations, 2018 To quickly solve the fractional Black–Scholes (B–S) equation in the option pricing problems, in this paper, we construct pure alternative segment explicit–implicit (PASE-I) and pure alternative segment implicit–explicit (PASI-E) difference schemes for ...
Yue Li, Xiaozhong Yang, Shuzhen Sun
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Multithread Approximation: An OpenMP Constructor
Concurrency and Computation: Practice and Experience, Volume 38, Issue 4, February 2026.ABSTRACT This study introduces an OpenMP construct designed to simplify and unify the integration of approximate computing techniques into shared‐memory parallel programs. Approximate Computing leverages the inherent error tolerance of many applications to trade computational accuracy for gains in performance and energy efficiency.
João Briganti de Oliveira +2 more
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Dynamic Debt With Intensity‐Based Models
Journal of Futures Markets, Volume 46, Issue 2, Page 334-352, February 2026.ABSTRACT This article proposes a dynamic debt model where the face value of debt can change. In particular, our dynamic debt setting allows debt changes ruled by intensity processes that are linked to the firm value through the correlation between the stochastic processes. Analytical solutions are obtained, and we extend the proposed dynamic debt model
João Miguel Reis, José Carlos Dias
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