Tidligere arrangementer - Side 9
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I dag kan vi ikke si sikkert hva den engelske svettesyken var, men da den dukket opp for f?rste gang i 1485 var legekunsten sikker i sin sak: Det var snakk om pest. Den oppfatningen skulle endre seg.
Artem Basyrov, Cosmology and Extragalactic Astronomy research group, Institute of Theoretical Astrophysics, University of Oslo.
Alexander Agadjanian, Alicja Curanovi? and P?l Kolst? will discuss Russian identity and religion in light of Russia's war in Ukraine.
Helge Jordheim tar oss med p? en langsom vandring gjennom viktige steder i dagens Berlin – og samtidig inn i byens historie.
Tobias Dahl, Senior Researcher at SINTEF Digital and adjunct associate professor at UiO
Janet Connor presents her ethnographic research on communication, diversity and convergence in the central Oslo neighborhood of T?yen, organized by the Multilingualism Research Forum
Hva skjer n?r et teoretisk begrep blir mainstream? Amund Rake Hoffarts nye bok analyserer diskusjoner rundt begrepet ?interseksjonalitet? i feministisk teori.
Velkommen til andre m?te i Nettverk for maskulinitetsforskning, med tema maskulinitet og klima.
Vi starter v?rens seminarprogram med ? hedre masteroppgaver som ble levert i 2023, og et tilbakeblikk p? det siste forsknings- og studie?ret.
Phase tropical surfaces can appear as a limit of a 1-parameter family of smooth complex algebraic surfaces. A phase tropical surface admits a stratified fibration over a smooth tropical surface. We study the real structures compatible with this fibration and give a description in terms of tropical cohomology. As an application, we deduce combinatorial criteria for the type of a real structure of a phase tropical surface.
Phase tropical surfaces can appear as a limit of a 1-parameter family of smooth complex algebraic surfaces. A phase tropical surface admits a stratified fibration over a smooth tropical surface. We study the real structures compatible with this fibration and give a description in terms of tropical cohomology. As an application, we deduce combinatorial criteria for the type of a real structure of a phase tropical surface.
Physics of internal microstructure fluid flows plays important role both due to their applications as well as their more general research field. In most occasions this type of fluid flow problems are treated with discrete models that are both computational costly as well as unable to shed light into the more general physics of the problem. In this sense a continuous model in the Eulerian frame is adopted here that consists a generalization of the incompressible Navier-Stokes equation. The present model introduces an extra tensor in the governing equations that accounts for the angular velocity of the internal microstructure, namely the micropolar model.
In 1962 Ehrhart proved that the number of lattice points in integer dilates of a lattice polytope is given by a polynomial — the Ehrhart polynomial of the polytope. Since then Ehrhart theory has developed into a very active area of research at the intersection of combinatorics, geometry and algebra.
The Ehrhart polynomial encodes important information about the polytope such as its volume and the dimension. An important tool to study Ehrhart polynomials is the h*-polynomial, a linear transform of the Ehrhart polynomial which is given by the numerator of the generating series. By a famous theorem of Stanley the coefficients of the h*-polynomial are always nonnegative integers. In this talk, we discuss generalizations of this result to weighted lattice point enumeration in rational polytopes where the weight function is given by a polynomial. In particular, we show that Stanley’s Nonnegativity Theorem continues to hold if the weight is a sum of products of linear forms that a nonnegative over the polytope. This is joint work with Esme Bajo, Robert Davis, Jesús De Loera, Alexey Garber, Sofía Garzón Mora and Josephine Yu.
In 1962 Ehrhart proved that the number of lattice points in integer dilates of a lattice polytope is given by a polynomial — the Ehrhart polynomial of the polytope. Since then Ehrhart theory has developed into a very active area of research at the intersection of combinatorics, geometry and algebra.
The Ehrhart polynomial encodes important information about the polytope such as its volume and the dimension. An important tool to study Ehrhart polynomials is the h*-polynomial, a linear transform of the Ehrhart polynomial which is given by the numerator of the generating series. By a famous theorem of Stanley the coefficients of the h*-polynomial are always nonnegative integers. In this talk, we discuss generalizations of this result to weighted lattice point enumeration in rational polytopes where the weight function is given by a polynomial. In particular, we show that Stanley’s Nonnegativity Theorem continues to hold if the weight is a sum of products of linear forms that a nonnegative over the polytope. This is joint work with Esme Bajo, Robert Davis, Jesús De Loera, Alexey Garber, Sofía Garzón Mora and Josephine Yu.
In this talk we define a new category of matroids, by working on matroid polytopes and rank preserving weak maps. This lets us introduce the concept of categorical valuativity for functors, which can be seen as a categorification of the ordinary valuativity for matroid invariants.
We also show that this new theory agrees with what we know about valuative polynomials: several known valuative polynomials can be seen as a Hilbert series of some graded vector space and we prove that these graded vector spaces let us define a valuative functor in the new sense.
Lastly, we sketch how to categorify a Theorem by Ardila and Sanchez, which states that the convolution of two valuative invariants (respectively, valuative functors) is again valuative.
This is based on a joint ongoing project with Ben Elias, Dane Miyata and Nicholas Proudfoot.
In this talk we define a new category of matroids, by working on matroid polytopes and rank preserving weak maps. This lets us introduce the concept of categorical valuativity for functors, which can be seen as a categorification of the ordinary valuativity for matroid invariants.
We also show that this new theory agrees with what we know about valuative polynomials: several known valuative polynomials can be seen as a Hilbert series of some graded vector space and we prove that these graded vector spaces let us define a valuative functor in the new sense.
Lastly, we sketch how to categorify a Theorem by Ardila and Sanchez, which states that the convolution of two valuative invariants (respectively, valuative functors) is again valuative.
This is based on a joint ongoing project with Ben Elias, Dane Miyata and Nicholas Proudfoot.
Thomas Mohnike (University of Strasbourg) will lecture about the transnational geographies of a Norwegian national poet between 1890 and 1918.
C*-algebra seminar by Ali Miller (Southern University of Denmark)
Speaker: Camilla Aukrust, Institute of Health and Society, UiO
The Norwegian National Opera & Ballet, the Department of Musicology and the Center for Gender Research at the University of Oslo invite you to an interdisciplinary half-day seminar related to the triple bill Bluebeard's Castle, staged by Tobias Kratzer and conducted by Edward Gardner.
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An interdisciplinary half-day seminar related to the triple bill Bluebeard's Castle, staged by Tobias Kratzer and conducted by Edward Gardner premiering at The Norwegian National Opera & Ballet, January 20.
Unni Fuskeland, Cosmology and Extragalactic Astronomy research group, Institute of Theoretical Astrophysics, University of Oslo.
Vi er inne i solsyklus 25 og vi opplever den vakreste vinterhimmelen p? mange ?r. Hva g?r vi i m?te og hvorfor er sola s? sterkt tilstede n??
How do the political determinants of health shape health outcomes in the Covid recovery era? This workshop aims to take stock of 10 years of scholarship on the political determinants of health and reflect on the future of this research agenda.