- Geometric and Algebraic Topology
- Mathematical Dynamics and Fractals
- Advanced Operator Algebra Research
- Environmental Impact and Sustainability
- Finite Group Theory Research
- Homotopy and Cohomology in Algebraic Topology
- semigroups and automata theory
- Computer Graphics and Visualization Techniques
- Advanced Topology and Set Theory
- Augmented Reality Applications
- Artificial Immune Systems Applications
- Origins and Evolution of Life
- 3D Shape Modeling and Analysis
- Mathematics and Applications
- Green IT and Sustainability
- Advanced Vision and Imaging
- Recycling and Waste Management Techniques
- Geometric Analysis and Curvature Flows
- Computational Geometry and Mesh Generation
- Advanced Algebra and Geometry
- Advanced Differential Equations and Dynamical Systems
- 3D Modeling in Geospatial Applications
- Municipal Solid Waste Management
- Interactive and Immersive Displays
- Sustainable Industrial Ecology
Institut de Mathématiques de Bordeaux
2023-2025
Institut de Mathématiques de Bourgogne
2023-2025
Université de Bourgogne
2023-2025
Czech Academy of Sciences, Institute of Biophysics
2023-2024
Institut de recherche mathématique de Rennes
2015-2024
Palacký University Olomouc
2020-2023
Regional Centre of Advanced Technologies and Materials
2020-2023
Université de Montréal
2023
Centre National de la Recherche Scientifique
2017-2022
Université de Rennes
2017-2022
Abstract: This article reports an assessment of the global warming potential associated with life cycle a biopolymer (poly(hydroxyalkanoate) or PHA) produced in genetically engineered corn developed by Monsanto. The grain is harvested conventional manner, and polymer extracted from stover (i.e., residues such as stalks, leaves cobs), which would be otherwise left on field. While farming was assessed based current practice, four different hypothetical PHA production scenarios were tested for...
Let <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="normal upper Gamma prime greater-than normal Gamma"> <mml:semantics> <mml:mrow> <mml:msup> <mml:mi mathvariant="normal">Γ</mml:mi> <mml:mo>′</mml:mo> </mml:msup> <mml:mo>></mml:mo> </mml:mrow> <mml:annotation encoding="application/x-tex">\Gamma ’>\Gamma</mml:annotation> </mml:semantics> </mml:math> </inline-formula> be two discrete groups acting properly by isometries on a...
In these notes we detail the geometrical approach of small cancellation theory used by T. Delzant and M. Gromov to provide a new proof infiniteness free Burnside groups periodic quotients torsion-free hyperbolic groups.
Abstract Terrestrial volcanism has been one of the dominant geological forces shaping our planet since its earliest existence. Its associated phenomena, like atmospheric lightning and hydrothermal activity, provide a rich energy reservoir for chemical syntheses. Based on laboratory simulations, we propose that early Earth volcanic activity inevitably led to remarkable production formic acid through various independent reaction channels. Large‐scale availability supports idea high‐temperature...
Using small cancellation for rotation families of groups, we construct new examples aspherical polyhedra.
In this article, we construct partial periodic quotients of groups which have a non-elementary acylindrical action on hyperbolic space. particular, provide infinite mapping class where fixed power every pseudo-Anosov homeomorphism is identified with or reducible element.
Let $Γ'
We describe algorithms that produce accurate real-time interactive in-space views of the eight Thurston geometries using ray-marching. give a theoretical framework for our algorithms, independent geometry involved. In addition to scenes within X, we also consider quotient manifolds and orbifolds X/Γ. adapt Phong lighting model non-euclidean geometries. The most difficult part this is calculation light intensity, which relates area density geodesic spheres. extensive practical details each geometry.
In this paper, we study some properties of the outer automorphism group free Burnside groups large odd exponent. particular, prove that it contains and abelian subgroups.
Let G be a non-elementary torsion-free hyperbolic group.We prove that the exponential growth rate of periodic quotient G/G n tends to one as odd approaches infinity.Moreover we provide an estimate at which convergence is taking place.Contents 1 Hyperbolic geometry 4 2 Growth cone types 6 2.1 Essential .
Market pressures and regulations are increasingly driving businesses to consider environmental issues during product development, promoting the idea of design for environment (DfE). A number different approaches DfE have emerged as this concept takes hold, which cover spectrum from life cycle assessment (LCA) guidelines disassembly. Conducting a full LCA is very difficult those who not familiar with method, such teams charged development complex products (e.g., electronic devices or cars)....
In this article we study automorphisms and endomorphisms of lacunary hyperbolic groups. We prove that every group is Hopfian, answering a question by Henry Wilton. addition, show if has the fix point property for actions on $\mathbf R$-trees, then it co-Hopfian its outer automorphism locally finite. also construct groups whose infinite, finite, contains any finite given in advance.
We describe a method of rendering real-time scenes in Nil geometry, and use this to give an expository account some interesting geometric phenomena. You can play around with the simulation at www.3-dimensional.space/nil.html.
A four stage study of the life cycle inventories polyvinyl chloride (PVC) resin manufacturing, compounding, part fabrication and disposal was conducted by IBM to evaluate environmental burdens associated with use PVC in structural applications for personal computer products. The overall project performed two phases. first phase developed various processes involved manufacture a typical housing. These included suspension polymerization PVC, production commercially formulated compound,...
Following the approach of Dahmani, Guirardel and Osin, we extend group theoretical Dehn filling theorem to show that pre-images infinite order subgroups have a certain structure free product. We then apply this result establish Farrell–Jones conjecture for groups hyperbolic relative family residually finite satisfying conjecture, partially recovering Bartels.
IBM is evaluating the environmental burdens associated with use of polyvinyl chloride (PVC) in major structural parts for information technology equipment. The evaluation involves developing life cycle inventories following four stages: (I) production PVC from raw materials, (II) compounding, (III) molding, finishing (for electromagnetic compatibility (EMC) and decorative appearance) (IV) end-of-life disposal options This paper presents a study Stage IV. work compares landfilling,...