Browsing Externally hosted open access publications with University of Galway authors (1) by Author "Agarwal, Ravi P"
Now showing items 1-6 of 6
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A leray-schauder alternative for weakly-strongly sequentially continuous weakly compact maps
Agarwal, Ravi P; O'Regan, Donal; Liu, Xinzhi (Springer Nature, 2005-01-01)A new applicable Leray-Schauder alternative is presented for weakly-strongly sequentially continuous maps. This result is then used to establish a general existence principle for operator equations. -
Fixed point theory for k–car sets
Agarwal, Ravi P; O'Regan, Donal (Elsevier BV, 2000-11-01) -
Multiple positive solutions of singular discrete p-laplacian problems via variational methods
Agarwal, Ravi P; Perera, Kanishka; O'Regan, Donal (Springer Nature, 2005-01-01)We obtain multiple positive solutions of singular discrete p-Laplacian problems using variational methods. -
On the oscillation of certain third-order difference equations
Agarwal, Ravi P; Grace, Said; O'Regan, Donal (Springer Nature, 2005-01-01)We establish some new criteria for the oscillation of third-order difference equations of the form Delta((1/a(2)(n))(Delta(1/a(1)(n))(Delta x(n))(alpha 1))(alpha 2)) + delta q(n)f(x[g(n)]) = 0, where Delta is the forward ... -
Oscillation criteria for certain nth order differential equations with deviating arguments
Agarwal, Ravi P; Grace, Said R; O'Regan, Donal (Elsevier BV, 2001-10-01) -
Singular problems: an upper and lower solution approach
O'Regan, Donal; Agarwal, Ravi P (Elsevier BV, 2000-11-01)