On fuzzy metric spaces. Zbl 0558.54003
Kaleva, Osmo; Seikkala, Seppo |
|
1984
|
On the fuzzy initial value problem. Zbl 0643.34005
Seikkala, Seppo |
|
1987
|
Towards the theory of fuzzy differential equations. Zbl 1003.34046
Vorobiev, Dmitri; Seikkala, Seppo |
|
2002
|
On singular, functional, nonsmooth and implicit phi-Laplacian initial and boundary value problems. Zbl 1083.34003
Heikkilä, S.; Seikkala, S. |
|
2005
|
Convergence theorems for HL integrable vector-valued functions with applications. Zbl 1177.28031
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2009
|
On functional improper Volterra integral equations and impulsive differential equations in ordered Banach spaces. Zbl 1136.45009
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2008
|
Uniqueness and comparison results for implicit differential equations. Zbl 0910.34002
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
1998
|
On the estimation of successive approximations in abstract spaces. Zbl 0349.41024
Heikkilä, Seppo; Seikkala, Seppo |
|
1977
|
Uniqueness and existence results for implicit impulsive differential equations. Zbl 0969.34012
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2000
|
Uniqueness, comparison and existence results for discontinuous implicit differential equations. Zbl 0893.34001
Seikkala, S.; Heikkilä, S. |
|
1997
|
On the existence of extremal solutions of phi-Laplacian initial and boundary value problems. Zbl 1069.65084
Heikkilä, S.; Seikkala, S. |
|
2004
|
Solution of a nonlinear two-point boundary value problem with Neumann- type boundary data. Zbl 0677.34020
Saranen, Jukka; Seikkala, Seppo |
|
1988
|
Existence, uniqueness, and comparison results for a differential equation with discontinuous nonlinearities. Zbl 0858.34003
Heikkilä, Seppo; Kumpulainen, Martti; Seikkala, Seppo |
|
1996
|
On the method of successive approximations for non-linear equations in spaces of continuous functions. Zbl 0404.47026
Seikkala, Seppo |
|
1978
|
On a classical Nicoletti boundary value problem. Zbl 0474.34057
Seikkala, Seppo |
|
1982
|
Existence of solutions to \(u^{\prime\prime}+u+g(t,u,u')=p(t), u(0)=u(\pi)=0\). Zbl 0998.34014
Kannan, R.; Seikkala, S. |
|
2001
|
Maximum principles and uniqueness results of phi-Laplacian boundary value problems. Zbl 1002.34008
Heikkilä, S.; Seikkala, S. |
|
2001
|
Existence, uniqueness, and upper estimates for solutions of McShane type stochastic differential systems. Zbl 0619.60059
Ladde, G. S.; Seikkala, S. |
|
1986
|
Existence of extremal solutions of singular functional Cauchy and Cauchy-Nicoletti problems. Zbl 1204.34028
Seikkala, S.; Heikkilä, S. |
|
2010
|
On the estimation of solutions to functional differential equations. Zbl 0326.34083
Heikkilä, Seppo; Seikkala, Seppo |
|
1975
|
On sample solutions of random initial value and Nicoletti boundary value problems. Zbl 0622.60060
Ladde, G. S.; Seikkala, S. |
|
1987
|
Existence, uniqueness and comparison results for nonlinear boundary value problems involving a deviating argument. Zbl 0443.34067
Heikkilä, Seppo; Mooney, John W.; Seikkala, Seppo |
|
1981
|
On fixed points through cluster values of iterates. Zbl 0376.47025
Heikkilä, Seppo; Seikkala, Seppo |
|
1977
|
Existence of extremal solutions of singular functional Cauchy and Cauchy-Nicoletti problems. Zbl 1204.34028
Seikkala, S.; Heikkilä, S. |
|
2010
|
Convergence theorems for HL integrable vector-valued functions with applications. Zbl 1177.28031
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2009
|
On functional improper Volterra integral equations and impulsive differential equations in ordered Banach spaces. Zbl 1136.45009
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2008
|
On singular, functional, nonsmooth and implicit phi-Laplacian initial and boundary value problems. Zbl 1083.34003
Heikkilä, S.; Seikkala, S. |
|
2005
|
On the existence of extremal solutions of phi-Laplacian initial and boundary value problems. Zbl 1069.65084
Heikkilä, S.; Seikkala, S. |
|
2004
|
Towards the theory of fuzzy differential equations. Zbl 1003.34046
Vorobiev, Dmitri; Seikkala, Seppo |
|
2002
|
Existence of solutions to \(u^{\prime\prime}+u+g(t,u,u')=p(t), u(0)=u(\pi)=0\). Zbl 0998.34014
Kannan, R.; Seikkala, S. |
|
2001
|
Maximum principles and uniqueness results of phi-Laplacian boundary value problems. Zbl 1002.34008
Heikkilä, S.; Seikkala, S. |
|
2001
|
Uniqueness and existence results for implicit impulsive differential equations. Zbl 0969.34012
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
2000
|
Uniqueness and comparison results for implicit differential equations. Zbl 0910.34002
Heikkilä, S.; Kumpulainen, M.; Seikkala, S. |
|
1998
|
Uniqueness, comparison and existence results for discontinuous implicit differential equations. Zbl 0893.34001
Seikkala, S.; Heikkilä, S. |
|
1997
|
Existence, uniqueness, and comparison results for a differential equation with discontinuous nonlinearities. Zbl 0858.34003
Heikkilä, Seppo; Kumpulainen, Martti; Seikkala, Seppo |
|
1996
|
Solution of a nonlinear two-point boundary value problem with Neumann- type boundary data. Zbl 0677.34020
Saranen, Jukka; Seikkala, Seppo |
|
1988
|
On the fuzzy initial value problem. Zbl 0643.34005
Seikkala, Seppo |
|
1987
|
On sample solutions of random initial value and Nicoletti boundary value problems. Zbl 0622.60060
Ladde, G. S.; Seikkala, S. |
|
1987
|
Existence, uniqueness, and upper estimates for solutions of McShane type stochastic differential systems. Zbl 0619.60059
Ladde, G. S.; Seikkala, S. |
|
1986
|
On fuzzy metric spaces. Zbl 0558.54003
Kaleva, Osmo; Seikkala, Seppo |
|
1984
|
On a classical Nicoletti boundary value problem. Zbl 0474.34057
Seikkala, Seppo |
|
1982
|
Existence, uniqueness and comparison results for nonlinear boundary value problems involving a deviating argument. Zbl 0443.34067
Heikkilä, Seppo; Mooney, John W.; Seikkala, Seppo |
|
1981
|
On the method of successive approximations for non-linear equations in spaces of continuous functions. Zbl 0404.47026
Seikkala, Seppo |
|
1978
|
On the estimation of successive approximations in abstract spaces. Zbl 0349.41024
Heikkilä, Seppo; Seikkala, Seppo |
|
1977
|
On fixed points through cluster values of iterates. Zbl 0376.47025
Heikkilä, Seppo; Seikkala, Seppo |
|
1977
|
On the estimation of solutions to functional differential equations. Zbl 0326.34083
Heikkilä, Seppo; Seikkala, Seppo |
|
1975
|