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فارسی
Ghasem Alizadeh Afrouzi
Academic rank:
Professor
ORCID:
Education:
PhD.
ScopusId:
HIndex:
Faculty:
Faculty of Mathematical Sciences
Address:
Phone:
01135302463
E-mail:
afrouzi [at] umz.ac.ir
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Title
On the existence of positive solutions for an ecological model with indefinite weight
Type
JournalPaper
Keywords
Ecological systems; Indefinite weight; Grazing and constant yield harvesting; Sub–super solution method
Year
2016
Journal
Arab Journal of Mathematical Sciences
DOI
Researchers
saleh shakeri
،
Ghasem Alizadeh Afrouzi
،
ARMIN Hadjian
Abstract
This study concerns the existence of positive solutions for a nonlinear boundary value problem. We prove the existence of positive solutions under certain conditions.