ON A NEW FIXED POINT THEOREM ON HILBERT SPACES VIA THE MOUNTAIN PASS LEMMA AND APPLICATIONS TO ELLIPTIC BOUNDARY VALUE PROBLEMS
2016 ◽
Vol 106
(1)
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1992 ◽
Vol 120
(4)
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pp. 363-374
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2008 ◽
Vol 11
(4-6)
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pp. 273-291
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1976 ◽
Vol 14
(3)
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pp. 471-472
2006 ◽
Vol 58
(2)
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pp. 244-262
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