accretive operators
Recently Published Documents


TOTAL DOCUMENTS

359
(FIVE YEARS 5)

H-INDEX

27
(FIVE YEARS 0)

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Fairouz Bouchelaghem ◽  
Mohammed Benharrat






Author(s):  
W. Kryszewski ◽  
M. Maciejewski

In the paper, we provide the construction of a coincidence degree being a homotopy invariant detecting the existence of solutions of equations or inclusions of the form Ax  ∈  F ( x ), x  ∈  U , where A : D ( A ) ⊸ E is an m -accretive operator in a Banach space E , F : K ⊸ E is a weakly upper semicontinuous set-valued map constrained to an open subset U of a closed set K  ⊂  E . Two different approaches are presented. The theory is applied to show the existence of non-trivial positive solutions of some nonlinear second-order partial differential equations with discontinuities. This article is part of the theme issue ‘Topological degree and fixed point theories in differential and difference equations’.



2020 ◽  
Vol 44 (6) ◽  
pp. 1653-1659
Author(s):  
Nasrin Jowkar ◽  
Assadollah Niknam


2020 ◽  
Vol 21 (2) ◽  
pp. 397-412 ◽  
Author(s):  
H.A. Abass ◽  
◽  
C. Izuchukwu ◽  
O.T. Mewomo ◽  
Q.L. Dong ◽  
...  


Sign in / Sign up

Export Citation Format

Share Document