“Functional coupled systems with generalized impulsive effects”, Workshop on Operator Theory, Complex Analysis, and Applications 2023 - WOTCA 2023, University of Évora, Portugal, July 24-28, 2023. https://sites.google.com/view/wotca23
"On periodic coupled systems", Workshop on Differential Equations and Their Applications, 02.07.2023 - 08.07.2023, Będlewo, Poland, https://www.impan.pl/en/activities/banach-center/conferences/23-differequationsapp
“On first order fully nonlinear coupled functional systems”, International Workshop on Mathematics and Physical Sciences, 15-16 June, 2023, University of Évora.
“Third-order periodic problems and application to thyroid-pituitary homeostatic mechanism”, 14th Conference on Dynamical Systems Applied to Biology and Natural Sciences, DSABNS 2023, Bilbao, Spain, 05-08/02/2022, https://sites.google.com/bcamath.org/dsabns2023/scientific-programme?authuser=0
“Coupled systems of fully simply supported beam equations”, Workshop "Mathematics and Applications", Universidad de Costa Rica, San Pedro de Montes de Oca, Costa Rica, 25-27 January, 2023, http://www.cimpa.ucr.ac.cr/index.php/inicio/notice/382-workshop-mathematics-and-applications
“On impulsive functional coupled systems of differential equations” Equadiff 15, Brno, Czech Republic, 11-15 July, 2022, https://conference.math.muni.cz/equadiff15/
“Functional coupled systems and applications”, International Workshop on Differential Equations, September 5 – 6, 2019, Lisbon, http://diffsanchez70.campus.ciencias.ulisboa.pt/
“Sufficient conditions for heteroclinic solutions of Phi-Laplacian generalized differential Equations” , VI Workshop on Computational Data Analysis and Numerical Methods, Covilhã, 27-29/June/ 2019, http://www.wcdanm-ubi19.uevora.pt/
“Heteroclinic solutions for strongly nonlinear differential equations” , International Conference on Differential & Difference Equations and Applications 2019, ICDDEA 2019, July 1-5, 2019 – Lisbon, https://sites.google.com/site/sandrapinelas/icddea-2019
“On infinite beams simply supported”, The V International AMMCS Interdisciplinary Conference Waterloo, Ontario, Canada, August 18-23, 2019, http://ammcs.wlu.ca/.
“Functional coupled systems and applications” , International Workshop on Differential Equations, September 5 – 6, 2019, Lisbon, http://diffsanchez70.campus.ciencias.ulisboa.pt/
“On second impulsive coupled systems”, International Conference on Nonlinear Analysis and Boundary Value Problems. September 4-7, 2018, Santiago de Compostela, Spain, https://bvp2018.es/
“Sufficient conditions for the solvability of impulsive coupled systems” , 7th Iberian Mathematical Meeting , Universidade de Évora, October, 12-14, 2018 http://7imm.spm-pt.org/
“Systems of coupled clamped beams equations with full nonlinearities” , II Joint Meeting Évora-Extremadura on Mathematics, 30/01/2017 , Universidade de Évora. http://www.jmeem2017.uevora.pt/index.php?/event
“On two-point coupled systems of third order differential equations” , ICDDEA 2017 – International Conference on Differential Equations & Difference Equations, 5 - 9/06/2017, https://sites.google.com/site/sandrapinelas/icddea-2017/e-special-sessions .
“On third order generalized periodic impulsive problems”, 2017 International Conference on Computational and Mathematical Methods in Science and Engineering, 2017 CMMSE, Rota, Spain, July 4–8, 2017, http://cmmse.usal.es/cmmse2017/special-session-and-minisymposiums#ms44
“Existence of heteroclinic solutions for classical and singular φ-Laplacian differential Equations “, University of Tennessee at Chattannooga, EUA, 12/07/2016.
“Heteroclinic solutions for ϕ-Laplacian equations”, 11th AIMS International Conference on Dynamical Systems, Differential Equations and Applications, 30/06/ - 05/07/2016, Orlando, EUA. http://aimsciences.org/AIMS-Conference/conf-reg2016/ss/changeApp12.php?ssid=63
“On the existence of heteroclinic solutions for some Phi-Laplacian equations” , Recent Trends in Differential Equations, realizada de 27 - 29/06/2016 , Universidade de Aveiro, http://rtde2016.weebly.com/
“Third-order systems with dependence on the first derivative”, O.D. Equations Brno 2016,, Brno, Czech Republic, 6 - 8/06/2016, http://conference.math.muni.cz/ode60/
“Solvability of third order nonlinear coupled systems”, Università della Calabria, Italy, Dipartamento de Matematica e Informatica, 28/05/2016.
“Homoclinic solutions for nonlinear general second and fourth order differential equations”, International Conference on Nonlinear Operators, Differential Equations and Applications, July 14-17, 2015, Cluj-Napoca, Romania,
http://www.cs.ubbcluj.ro/~icnodeacj/invited_speakers.htm
“Topological Methods for Higher Order Nonlinear Impulsive Boundary Value Problems”, plenary speaker , 16th International Conference on MATHEMATICAL METHODS, COMPUTATIONAL TECHNIQUES and INTELLIGENT SYSTEMS (MAMECTIS '14), Lisbon, 30/10 - 1/11/2014, http://www.wseas.org/wseas/cms.action?id=9085
“On higher order nonlinear impulsive boundary value problems”, 5th Iberian Mathematical Meeting, Universidade de Aveiro, 3-5 October, 2014, http://cms.ua.pt/imm5/Invited%20sessions .
“Multiplicity results for higher order differential BVPs and integral equations” , Conference on Functional Differential Equations and Applications – FDEA 2014, University of Ariel, Israel, 25 - 29/08/2014, http://www.ariel.ac. il/projects/math/fdea2014/
“Localization results and extremal solutions for higher order functional BVPs”, 5th Israeli-Czech Workshop on Functional Differential Equations, University of, Israel, de 21 - 24/08/2014, http://www.ariel.ac.il/projects/math/fdea2014/prog2014.pdf
“On higher order nonlinear impulsive boundary value problems”, 10th AIMS International Conference on Dynamical Systems, Differential Equations and Applications, 7 - 11/07/2014, Madrid, Spain .
“Existence and multiplicity of solutions in fourth order BVPs with unbounded nonlinearities”, 9th AIMS International Conference on Dynamical Systems, Differential Equations and Applications, 1 - 05/07/2012, Orlando, Florida, EUA.
“Dependence of solution on a parameter in unbounded BVPs”, NODDEA’12, International Conference on Nonlinear Difference and Differential Equations and their Applications, 3 - 6 de October 2012, Rousse, Bulgaria.
"Lower and upper solutions in higher order functional BVPs” (06/04/2011), "On the multiplicity of solutions in Lidstone BVPs” (13/04/2011), “ Fourth order impulsive periodic problems” (27/04/2011), Seminario de Ecuacións Diferenciais e Análise Funcional, University of Santiago de Compostela, Spain
“Sufficient conditions for the solvability of higher order functional boundary value problems”, “Periodic solutions for some nonlinear fully fourth order differential equations”, Eighth International Conference on Dynamical Systems, Differential Equations and Applications, 25 - 28/05/2010, Dresden University of Technology, Dresden, Germany.
“Existence of extremal solutions for some fourth order functional BVPs”, workshop "Emerging Problems in Nonlinear Analysis and Differential Equations: Advances in Theory and Applications", 1 - 4 June 2010, University of Glasgow, Scotland.
“Simply supported beams: Existence and multiplicity results”, Workshop Nonlinear Difference and Differential Equations and their Applications, 2 - 4 April 2009, Rousse, Bulgaria.
“Location and multiplicity results for general nonlinear fourth order BVPs and applications”, Institute of Mathematics, Academy of Sciences da Czec Republic, 20 - 26/04/2009.
“Location of solution: an under used tool in higher order boundary value problems”, Department of Mathematics , University of Tennessee at Chattanooga, TN, EUA, 27/04/2009
“Functional Boundary Value Problems: Potential and Applications”, Departamento de Análisis Matemática, Facultade de Matemáticas, USC, Spain, 25/04/2008.
“On the solvability of some beam equations with functional boundary conditions”, Seventh International Conference on Dynamical Systems, Differential Equations and Applications, 18 - 21/05/2008, University of Texas, Arlington, Texas, USA.
“Periodic third order fully boundary value problems with unbounded nonlinearities”, Sixth International Conference On Differential Equations and Dynamical Systems 22 - 26/05/2008, Baltimore, Maryland, USA.
“Lower and upper solutions: an appropriate method for BVP in Medicine and Engineering”, Mathematical Models in Engineering, Biology and Medicine. Conference on Boundary Value Problems, 16-19 September, 2008, Santiago de Compostela, Spain.
“Existence, non existence and multiplicity of solution for beam equations”, Departamento de Análisis Matemática, Facultade de Matemáticas, USC, Spain, Espanha, 30/03/2007.
“Ambrosetti-Prodi type results to fourth order nonlinear fully differential equations”, Fifth International Conference on Dynamic Systems and Applications, 30/05 - 02/06/2007, Morehouse College, Atlanta, Georgia, USA.
"Existence and location results for nonlinear third order periodic boundary value problems”, International Conference on Differential Equations (Equadiff2007), Vienna, Austria, 5 - 11/08/2007.
“Beam equations with nonlinear supports at the endpoints”, Departamento de Análisis Matemática, Facultade de Matemáticas, USC, Spain, 18/02/2006.
“Existence, nonexistence and multiplicity results for some beam equations”, Views on ODES – dedicated to the 65th birthday of Arrigo Cellina and James A. Yorke, Aveiro, 21 - 24/06/2006.
“Higher Order Two-Point Boundary Value Problems with Asymmetric Growth”, Sixth International Conference on Dynamical Systems, Differential Equations and Applications, 25 - 28/06/2006, Poitiers, France.
“Multiple solutions for fourth order fully nonlinear boundary value problems”, Universidad Nacional de Educación a Distancia, Departamento de Matemática Aplicada, E.T.S.I. Industriales, Madrid, 21/10/2006.
"Lower and upper solutions method for a fully nonlinear elastic beam equation simply supported”, International Conference on Differential Equations (Equadiff 11), Bratislava, Eslovaquia, 25 - 29/07/2005.
“On an elastic beam fully equation with nonlinear boundary conditions”, Conference on Differential & Difference Equations and Applications , Florida Institute of Technology, Melbourne, Florida, USA, 1 - 5/08/2005.
“The Nagumo Condition on Nonlinear Boundary Value Problems”, Departamento de Análisis Matemática, Facultade de Matemáticas, Universidade de Santiago de Compostela (USC), Spain 6/02/2004.
“Existence and Location Result for a Fourth Order Boundary Value Problem”, Fifth International Conference on Dynamical Systems and Differential Equations, 16 - 19/06/2004, Pomona, Los Angeles, USA.
“Lower and Upper Solutions Method on Nonlinear Boundary Value Problems: Classical and Recent Trends”, Fourth World Congress of Nonlinear Analysts- 30/06/2004 - 07/07/2004, Orlando, Florida, USA.
“Existence and non-existence results for two-point higher order boundary value problems” , International Conference on Differential Equations (Equadiff 2003), Hasselt, Belgium, 22-26/07/2003-
“Periodic Solutions for a Class of Second Order Differential Equations” , XXIV Summer School Applications of Mathematics in Engineering, Sozopol, Bulgaria, 14 - 20 June 1998.
“Nonresonant oscillations for a third order periodic differential equation”, Departamento of Mathematic and Informatic, University of Rousse, Rousse, Bulgaria, 19/06/1998.
“Homoclinic Solutions for a Class of Second Order Differential Equations” , Autumn School on Nonlinear Functional Analysis and Applications to Differential Equations (ASDE98), Centro de Matemática e Aplicações Fundamentais, Lisbon, 14/09/98 - 23/10/98.
“Nonresonance Conditions on the Potential for a Third Order Periodic Boundary Value Problem”, Seventh International Colloquium on Differential Equations, 18 - 23/08/96, Plovdiv, Bulgaria.
