Hartman–Stampacchia Theorems, Gale–Nikaidô–Debreu Lemma, and Brouwer and Kakutani Fixed-Point Theorems.

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Title: Hartman–Stampacchia Theorems, Gale–Nikaidô–Debreu Lemma, and Brouwer and Kakutani Fixed-Point Theorems.
Authors: Gourdel, Pascal1, pascal.gourdel@univ-paris1.fr, Le Van, Cuong2, cuong.levan@univ-paris1.fr, Pham, Ngoc-Sang3, npham@em-normandie.fr, Tran Viet, Cuong4, tranviet14@gmail.com
Source: Journal of Optimization Theory & Applications; Apr2026, Vol. 209 Issue 1, p1-22, 22p
Database: Applied Science & Technology Source
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DbLabel: Applied Science & Technology Source
An: 192778591
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PubType: Academic Journal
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  Data: Hartman–Stampacchia Theorems, Gale–Nikaidô–Debreu Lemma, and Brouwer and Kakutani Fixed-Point Theorems.
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  Data: <searchLink fieldCode="AU" term="%22Gourdel%2C+Pascal%22">Gourdel, Pascal</searchLink><relatesTo>1</relatesTo>, <i>pascal.gourdel@univ-paris1.fr</i><br /><searchLink fieldCode="AU" term="%22Le+Van%2C+Cuong%22">Le Van, Cuong</searchLink><relatesTo>2</relatesTo>, <i>cuong.levan@univ-paris1.fr</i><br /><searchLink fieldCode="AU" term="%22Pham%2C+Ngoc-Sang%22">Pham, Ngoc-Sang</searchLink><relatesTo>3</relatesTo>, <i>npham@em-normandie.fr</i><br /><searchLink fieldCode="AU" term="%22Tran+Viet%2C+Cuong%22">Tran Viet, Cuong</searchLink><relatesTo>4</relatesTo>, <i>tranviet14@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Optimization+Theory+%26+Applications%22">Journal of Optimization Theory & Applications</searchLink>; Apr2026, Vol. 209 Issue 1, p1-22, 22p
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=aci&AN=192778591
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        Value: 10.1007/s10957-026-02971-x
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      – Code: eng
        Text: English
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        PageCount: 22
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      – TitleFull: Hartman–Stampacchia Theorems, Gale–Nikaidô–Debreu Lemma, and Brouwer and Kakutani Fixed-Point Theorems.
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            NameFull: Le Van, Cuong
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              Text: Apr2026
              Type: published
              Y: 2026
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