The theory of modular functions: automorphic forms

In the modern mathematical landscape, the study of modular functions and automorphic forms constitutes a crucial field intertwining complex analysis, number theory, and arithmetic geometry. The theory of modular functions lies at the heart of a vast network of concepts where notions of moduli space, discrete groups related to the modular group, and the famous … Read more

The theory of Diophantine approximations: rationals and irrationals

The theory of Diophantine approximations stands out as a major pillar in the fine understanding of the relationships between real numbers and rational numbers. It extends its reach from simple fractions to the most complex irrationals, offering powerful tools to approach numbers that, at first glance, seem inaccessible through fractions. In 2025, this branch of … Read more

Fixed point methods: existence and uniqueness

At the heart of functional analysis, fixed-point methods hold a fundamental place due to their ability to guarantee not only the existence but also the uniqueness of solutions to many complex mathematical problems. These techniques are based on the principle that a function, under certain conditions, possesses a fixed point, that is, a point where … Read more

The geometry of minimal surfaces: curvature and area

The geometry of minimal surfaces fascinates due to the tension it maintains between shape, curvature, and optimization. These surfaces, often represented in nature by soap films or biological membranes, embody the mathematical idea of a surface that, while constrained by a given boundary, minimizes its area. Their study requires a profound understanding of differential geometry, … Read more

The theory of valuations: integral convex geometry

The valuation theory is a cornerstone in mathematics, closely intertwining notions of convex geometry and geometric integral. It provides a powerful analytical framework for characterizing and quantifying the properties of convex bodies, relying on sophisticated tools such as convex measures and geometric invariants. These concepts, far from being purely abstract, find concrete applications in various … Read more

The geometry of Banach spaces: convexity and smoothness

Banach spaces represent a cornerstone of contemporary functional analysis, where the notion of norm confers a rich and complex geometric structure to often infinite sets. The intrinsic geometry of these spaces, particularly through their properties of convexity and smoothing, plays a crucial role in understanding the functional and topological behaviors that manifest within them. In … Read more

The intersection theory: quantitative algebraic geometry

Intersection theory occupies a pivotal place in the modern mathematical landscape, especially within quantitative algebraic geometry. Through elegant and powerful concepts, it explores the complex interactions between subvarieties within an algebraic variety, unveiling profound structures that transcend observable geometric forms. This discipline has its roots in the classical Bézout theorem, which establishes a rigorous relationship … Read more

The analysis on metric spaces: calculation without coordinates

In short: The essence of metric spaces: defining a distance without reference to coordinates Metric spaces represent a fundamental conceptual generalization in mathematical analysis, where the notion of distance is defined for any set, irrespective of a classical geometric structure based on coordinates. This flexibility allows work with abstract sets while retaining the essential properties … Read more

Enumerative geometry: counting curves and surfaces

Enumerative geometry explores a fascinating field of mathematics where the aim is to count specific geometric objects, notably curves and surfaces, that meet specific constraints. This area, at the crossroads of algebraic geometry, algebraic topology, and moduli theory, presents complex challenges, combining rigorous classification and sophisticated calculations. In 2025, enumerative geometry continues to push the … Read more

Algorithmic geometry: efficient geometric calculations

Algorithmic geometry stands at the heart of current technological and scientific developments, offering powerful methods to handle complex datasets in a geometric space. This discipline, stemming from advances made in the 1970s, addresses the need to efficiently model and manipulate geometric objects in various computing universes. Diverse applications such as robotics, computer graphics, and computer-aided … Read more