University of Alberta

Abstract of the talk: In his 1938 thesis, C. Godbersen conjectured that, among convex bodies of fixed positive volume, the mixed volume of a body and its reflection about the origin is maximized by simplices. Although not stated explicitly in...

Abstract: We develop an ensemble inference framework for valid post-fusion inference in the context of supervised homogeneity pursuit (SHoP). This methodology allows to fuse numerous micro-level weak signals into a few macro-level strong predictors...

Locally compact quantum groups, as introduced by Kustermans–Vaes in 2000, provide a powerful abstract framework in which the convolution algebra L1(G) over a locally compact group G is the (Pontryagin-type) dual object of the Fourier algebra A(G)...

The work deals with establishing the solvability of a system of integro-differential equations in the situation of the double scale anomalous diffusion. Each equation of such system involves the sum of the two negative Laplace operators raised to two...

Populations and communities can be disrupted by many forms of environmental change. A drought or an epidemic is a short-lived “pulse” perturbation whereas land-use change is better thought of as a “press”, that is a sustained change. In this talk, I...

Let C be a class of algebraic structures. For example, C could be a class of quadratic forms, field extensions or algebraic curves of a given genus. To measure the complexity of C, mathematicians ask a natural question: how many algebraically...

Finitely generated groups can be treated as geometric objects by considering their Cayley graphs with respect to finite generating sets. All such graphs are quasi-isometrically equivalent. In the 80s, Gromov proposed studying finitely generated...

Pollution is a pervasive environmental stressor that affects biological systems across multiple levels of organization, from cellular processes to individual behavior and population dynamics. While numerous empirical studies document these effects...

Finitely generated groups can be treated as geometric objects by considering their Cayley graphs with respect to finite generating sets. All such graphs are quasi-isometrically equivalent. In the 80s, Gromov proposed studying finitely generated...

Tipping points (critical transitions) are abrupt, often irreversible shifts in dynamical systems that can be triggered by small changes. This talk tackles two questions: how to predict tipping early and why tipping occurs. In this talk, I will...