Sammanfattning

In this paper, a family of first-order hyperbolic integro-differential equations introduced to model the decomposition of organic matter (OM) are studied. These original equations depend on an extra variable named "quality". We prove that these equations admit solutions in particular Banach spaces ensuring the continuity and the N-order closure of equations (N is an element of N*) according to "quality". We first give a result of existence, uniqueness and smoothness in a general framework. Then, this result is applied to specific transport equations. Finally, a numerical illustration of solutions properties is given by using an implicit-explicit finite difference scheme.

Nyckelord

Soil organic matter; integro-differential equations; ordinary differential equations on Banach spaces; decomposition model

Publicerad i

Quarterly of Applied Mathematics
2017, Volym: 75, nummer: 1, sidor: 131-153

SLU författare

• Ågren, Göran

  • Institutionen för ekologi, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Markvetenskap
Matematisk analys


Publikationens identifierare

DOI: https://doi.org/10.1090/qam/1438

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/78411