Results 1 to 10 of about 570,485 (142)
A Note on Coincidence Degree Theory [PDF]
Abstract and Applied Analysis, 2012 The background of definition of coincidence degree is explained, and some of its basic properties are given.
Ali Sırma, Sebaheddin Ṣevgin
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Artnodes, 2021 The Covid-19 pandemic, which manifested itself during the early months of 2020, resulted in the activation of the expected official actors on a national and international level in policy, politics, the industrial military complex, pharma and medicine ...
Laura Benítez Valero, Erich Berger
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Periodic Third-Order Problems with a Parameter
Axioms, 2021 This work concerns with the solvability of third-order periodic fully problems with a weighted parameter, where the nonlinearity must verify only a local monotone condition and no periodic, coercivity or super or sublinearity restrictions are assumed, as
Feliz Minhós, Nuno Oliveira
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Structure of the Fixed Point of Condensing Set-Valued Maps [PDF]
Mathematics Interdisciplinary Research, 2020 In this paper, we present structure of the fixed point set results for condensing set-valued map. Also, we prove a generalization of the Krasnosel'skii-Perov connectedness principle to the case of condensing set-valued maps.
Zeinab Soltani
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The preventive and therapeutic role of physical activity in knee osteoarthritis
Reumatismo, 2022 The aim of this narrative review is to discuss the results of studies investigating the role of physical activity in knee osteoarthritis (OA). We also formulated two evidence-based exercise programs that could be prescribed to patients with symptomatic ...
R. Restuccia +3 more
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Bifurcation Results for Periodic Third-Order Ambrosetti-Prodi-Type Problems
Axioms, 2022 This paper presents sufficient conditions for the existence of a bifurcation point for nonlinear periodic third-order fully differential equations. In short, the main discussion on the parameter s about the existence, non-existence, or the multiplicity ...
Feliz Minhós, Nuno Oliveira
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Generalizations of Browder's Degree Theory [PDF]
Transactions of the American Mathematical Society, 1995 The starting point of this paper is the recent important work of F. E. Browder, who extended degree theory to operators of monotone type. The degree function of Browder is generalized to maps of the form T + f + G T + f + G , where T T is maximal monotone, f f is ...
Hu, Shouchuan, Papageorgiou, Nikolaos S.
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Well-Ordered and Non-Well-Ordered Lower and Upper Solutions for Periodic Planar Systems
Advanced Nonlinear Studies, 2021 The aim of this paper is to extend the theory of lower and upper solutions to the periodic problem associated with planar systems of differential equations.
Fonda Alessandro +2 more
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Coexistence of an unstirred chemostat model with B-D functional response by fixed point index theory
Journal of Inequalities and Applications, 2016 This paper deals with an unstirred chemostat model with the Beddington-DeAngelis functional response. First, some prior estimates for positive solutions are proved by the maximum principle and the method of upper and lower solutions.
Xiao-zhou Feng +2 more
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Degree Theory of Immersed Hypersurfaces [PDF]
Memoirs of the American Mathematical
Society, 2020 Complete revision. We've worked hard to make the text clearer and we hope the reader will notice the difference. Shorter and more conceptual proofs. The applications, we hope, are much clearer. In addition, we develop a new concept of "weakly smooth manifolds".
Rosenberg, Harold, Smith, Graham
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