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Ratnasingham Shivaji
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Year
Existence results for superlinear semipositone BVP’s
V Anuradha, D Hai, R Shivaji
Proceedings of the American Mathematical Society 124 (3), 757-763, 1996
2761996
Diffusive logistic equation with constant yield harvesting, I: Steady states
S Oruganti, J Shi, R Shivaji
Transactions of the American Mathematical Society 354 (9), 3601-3619, 2002
1902002
S-shaped bifurcation curves
KJ Brown, MMA Ibrahim, R Shivaji
Nonlinear Analysis: Theory, Methods & Applications 5 (5), 475-486, 1981
1901981
Non-negative solutions for a class of non-positone problems
A Castro, R Shivaji
Proceedings of the Royal Society of Edinburgh Section A: Mathematics 108 (3 …, 1988
1861988
Persistence in reaction diffusion models with weak Allee effect
J Shi, R Shivaji
Journal of Mathematical Biology 52 (6), 807-829, 2006
1842006
An existence result on positive solutions for a class of p-Laplacian systems
DD Hai, R Shivaji
Nonlinear Analysis: Theory, Methods & Applications 56 (7), 1007-1010, 2004
1682004
Nonlinear eigenvalue problems with semipositone structure.
A Castro, C Maya, R Shivaji
Electronic Journal of Differential Equations (EJDE)[electronic only] 2000, 33-49, 2000
1112000
Nonnegative solutions for a class of radially symmetric nonpositone problems
A Castro, R Shivaji
Proceedings of the American Mathematical Society 106 (3), 735-740, 1989
1041989
Multiple positive solutions for classes of -Laplacian equations
M Ramaswamy, R Shivaji
842004
Positive solutions of quasilinear boundary value problems
DD Hai, K Schmitt, R Shivaji
Journal of mathematical analysis and applications 217 (2), 672-686, 1998
731998
A remark on the existence of three solutions via sub-super solutions
R Shivaji
Nonlinear analysis and applications, 561-566, 2020
712020
An existence result on positive solutions for a class of semilinear elliptic systems
DD Hai, R Shivaji
Proceedings of the Royal Society of Edinburgh Section A: Mathematics 134 (1 …, 2004
712004
Existence results for classes of sublinear semipositone problems
A Castro, JB Garner, R Shivaji
Results in Mathematics 23, 214-220, 1993
691993
Uniqueness of non-negative solutions for a semipositone problem with concave nonlinearity
A Castro, M Hassanpour, R Shivaji
Communications In Partial Differential Equations 20 (11-12), 1927-1936, 1995
651995
Uniqueness and stability of nonnegative solutions for semipositone problems in a ball
I Ali, A Castro, R Shivaji
Proceedings of the American Mathematical Society 117 (3), 775-782, 1993
631993
Positive solutions for a class of p-Laplacian systems with multiple parameters
J Ali, R Shivaji
Journal of mathematical analysis and applications 335 (2), 1013-1019, 2007
602007
Nonexistence of radially symmetric nonnegative solutions for a class of semi-positone problems
KJ Brown, A Castro, R Shivaji
581989
Logistic equation with the p‐Laplacian and constant yield harvesting
S Oruganti, J Shi, R Shivaji
Abstract and Applied Analysis 2004 (9), 723-727, 2004
552004
Classes of infinite semipositone systems
EK Lee, R Shivaji, J Ye
Proceedings of the Royal Society of Edinburgh Section A: Mathematics 139 (4 …, 2009
512009
Positive solutions for a concave semipositone Dirichlet problem
A Castro, R Shivaji
511998
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