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EXISTENCE OF SOLUTIONS TO A FOURTH ORDER φ--LAPLACIAN BVP ON THE HALF-LINE USING NONORDERED UPPER AND LOWER SOLUTIONS.

• Authors : ZERKI, A.¹ ; BACHOUCHE, K.² ; AIT-MAHIOUT, K.¹

• Source: Fixed Point Theory. 2025, Vol. 26 Issue 2, p679-696. 18p.

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Unified approach to nonlinear Caputo fractional derivative boundary value problems‎: ‎extending the upper and lower solutions method

• Authors : I. Talib; A. Batool; J‎. ‎V. da C‎. Sousa

• Source: Journal of Mathematics and Computer Science. 37:20-31

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Extensions of some differential inequalities for fractional integro-differential equations via upper and lower solutions

• Authors : A. Yakar; H. Kutlay

Subjects: QA299.6-433; boundary value problem; QA801-939

• Source: Қарағанды университетінің хабаршысы. Математика сериясы, Vol 109, Iss 1, Pp 156-167 (2023)Қарағанды университетінің

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Upper and lower solutions for an integral boundary problem with two different orders ( p , q ) $\left ( p,q\right ) $ -fractional difference

• Authors : Mouataz Billah Mesmouli; Farah M. Al-Askar; Wael W. Mohammed

Subjects: IBVP; Positive solutions; Fixed point

• Source: Journal of Inequalities and Applications, Vol 2024, Iss 1, Pp 1-14 (2024)

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Upper and lower solutions method for a class of second-order coupled systems.

• Authors : Yu, Zelong¹ (AUTHOR); Bai, Zhanbing¹ (AUTHOR); Shang, Suiming¹ (AUTHOR)

• Source: Boundary Value Problems. 2/23/2024, Vol. 2024 Issue 1, p1-8. 8p.

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On Fuzzy Differential Inequalities with Upper and Lower Solutions

• Authors : Ali YAKAR; Seda ÇAĞLAK

Subjects: Matematik; 0202 electrical engineering, electronic engineering, information engineering; 02 engineering and technology

• Source: Issue: 37 68-75Journal of New Theory

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Error analysis for time-fractional semilinear parabolic equations using upper and lower solutions

• Authors : Kopteva, Natalia

Subjects: Mathematics - Numerical Analysis

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Periodic Solutions for SDEs through Upper and Lower Solutions

• Authors : Ji, Chunyan; Yang, Xue; Li, Yong

Subjects: Mathematics - Dynamical Systems

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EXISTENCE AND UNIQUENESS RESULTS FOR FOURTH-ORDER FOUR-POINT BVP ARISING IN BRIDGE DESIGN IN THE PRESENCE OF REVERSE ORDERED UPPER AND LOWER SOLUTIONS.

• Authors : URUS, NAZIA¹ ; VERMA, AMIT K.¹ .i

• Source: Electronic Journal of Differential Equations. 2023, Issue 74, p1-17. 17p.

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Upper and lower solutions for second-order with m-point impulsive boundary value problems

• Authors : Karaca, Ilkay Yaslan; Oz, Dondu

Subjects: Conditions; Multiple Positive Solutions; positive solutions

• Source: Filomat. 35:4327-4340

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