A Feira da Matemática está de volta ao Museu Nacional de História Natural e da Ciência da Universidade de Lisboa. Este ano, com um programa exclusivamente online.

Speaker: Jean-Baptiste Casteras (CMAFcIO, Universidade de Lisboa).

In this talk, we will be interested in standing wave solutions to a fourth order nonlinear Schrödinger equation having second and fourth order dispersion terms. This kind of equation naturally appears in nonlinear optics. In a first time, we will establish the existence of ground-state and renormalized solutions. We will then be interested in their qualitative properties, in particular their stability.

Speaker: Clarence Protin.

Abstract: Many intuitively valid arguments involving intensionality cannot be captured by first-order logic, even when extended by modal and epistemic operators.

Indeed, previous attempts at providing an adequate treatment of the phenomenon of intensionality in logic and language, such as those of Frege, Church, Russell, Carnap, Quine, Montague and others are fraught with numerous philosophical and technical difficulties and shortcomings.

Speaker: Davide Masoero (Grupo de Física Matemática, FCUL).

Abstract: We study a second-order linear differential equation known as the deformed cubic oscillator, whose isomonodromic deformations are controlled by the first Painlevé equation. We use the generalised monodromy map for this equation to give solutions to the Bridgeland's Riemann-Hilbert problem arising from the Donaldson-Thomas theory of the A2quiver.

Por Longmei Shu (Emory University).

Speaker: Clarence Protin.

Abstract: Many intuitively valid arguments involving intensionality cannot be captured by first-order logic, even when extended by modal and epistemic operators.

Indeed, previous attempts at providing an adequate treatment of the phenomenon of intensionality in logic and language, such as those of Frege, Church, Russell, Carnap, Quine, Montague and others are fraught with numerous philosophical and technical difficulties and shortcomings.

O Departamento de Matemática promove duas sessões de boas-vindas aos novos alunos 2020/2021:

• Licenciatura em Matemática: “Clube Ciências” (edifício C6) | 2 sessões presenciais: números pares das 15h00 às 15h30, números ímpares das 15h45 às 16h15
• Licenciatura em Matemática Aplicada: Zoom | 08h30 (sessão organizada com o DEIO)

Por Luís Pereira (Instituto Superior Técnico).

Abstract: The Kicked Rotator is one of the central models in studies of chaos theory. Its quantization was the subject of great interest in the 1980's, but since the 1990's, interest faded. I hope to rekindle interest in this subject.

Por Luís Pereira (Instituto Superior Técnico).

Por Luís Pereira (Instituto Superior Técnico).