https://landerhermans.com landerhermans Wed, 11 Oct 2023 19:51:04 +0000 https://landerhermans.com en https://landerhermans.com/Home Wed, 11 Oct 2023 19:29:53 +0000 landerhermans https://landerhermans.com/Home LANDER HERMANS   About Completed my PhD in June 2025 entitled “Deforming Prestacks: a box operadic approach” under the supervision of Wendy Lowen at the University of Antwerp. Operads // Noncommutative Algebraic Geometry // Deformation Theory My interests lie at the intersection of algebraic topology, noncommutative algebraic geometry and homotopical algebra. I study all kinds of higher structures and their deformations theories, with a main focus on applying combinatorial and homological methods. This includes operads and their variations, higher categories and prestacks, deformation complexes, Koszul duality and Gerstenhaber-Schack cohomology. Publications & Preprints Teaching Research Day 2025 Slides Talks & Posters & Seminars & Conferences Contact https://landerhermans.com/About Wed, 11 Oct 2023 19:50:11 +0000 landerhermans https://landerhermans.com/About AboutCompleted my PhD as Predoctoral fellow of the Research Foundation Flanders - Fonds Wetenschappelijk Onderzoek (FWO) based at University of Antwerp (UA), under the supervision of Wendy Lowen. Research interestsOperads // Noncommutative Algebraic Geometry // Deformation Theory My interests lie at the intersection of algebraic topology, noncommutative algebraic geometry and homotopical algebra. I study all kinds of higher structures and their deformations theories, with a main focus on applying combinatorial and homological methods. This includes operads and their variations, higher categories and prestacks, deformation complexes, Koszul duality and Gerstenhaber-Schack cohomology. PhD project (October 2019 - Present)under the supervision of Wendy Lowen. “Operadic Approaches to Deforming Higher Categories and Prestacks” FundingI was hired as part of the ERC Project “Foundations for Higher and Curved Noncommutative Geometry” with principal investigator Wendy Lowen. Thereafter, I was awarded a 1-year umbrella grant by University of Antwerp (UA) and succesfully applied for a 4-year PreDoc grant with Research Foundation Flanders (FWO). GrantsFWO Travel grant (2023) FWO PreDoc grant (2021 - 2025)UA umbrella grant (2020 - 2021) Education 2017 - 2019 Master in Pure Mathematics Graduated Magna Cum LaudeFall Semester 2018-2019 spent at Université Paris Diderot VII (Paris) as part of Erasmus program University of Antwerp (UA) 2013 - 2017 Bachelor in Mathematics 2015 - 2017 Continuation at Free University Brussels2014 - 2015 Gap year in Berlin2013 - 2014 First year at University of Antwerp University of Antwerp (UA), Free University Brussels (VUB) O https://landerhermans.com/Publications-Preprints Wed, 11 Oct 2023 19:50:29 +0000 landerhermans https://landerhermans.com/Publications-Preprints Publications Operadic structure on the Gerstenhaber-Schack complex for prestacks, Selecta Mathematica – New Series 28 Vol 3 (2022)[Doi] [ArXiv] (with Hoang Dinh Van and Wendy Lowen) A Deligne conjecture for prestacks, Proceedings of the American Mathematical Society (2025) [Doi] [ArXiv] (with Ricardo Campos) Preprints Box operads and higher Gerstenhaber brackets, ArXiv Preprint (2023), Submitted [ArXiv] (with Hoang Dinh Van and Wendy Lowen) A minimal model for prestacks and morphisms of operadic algebras via Koszul duality for box operads, ArXiv Preprint (2023), Submitted [ArXiv] https://landerhermans.com/Talks-Posters-Seminars-Conferences Wed, 11 Oct 2023 19:51:04 +0000 landerhermans https://landerhermans.com/Talks-Posters-Seminars-Conferences Talks November 2024 Workshop on Koszul duality of box operads at East China Normal University Shanghai, China November 2024 Fourth International Conference on Operad Theory and Related Topics [slides] Tianjin, China October 2024 Second Virtual Workshop on Double Categories [slides] Online O April 2024 Workshop ”Hochschild (Co)homology and Applications” at MFO [slides] Oberwolfach, Germany June 2023 Trimester “Higher structures in geometry and physics” seminar [slides] Paris, France May 2023 Mid-term workshop ANR “Higher algebra, geometry and topology” [slides] Strasbourg, France April 2023 ALPE seminar Montpellier, France May 2022 HYDRA Antwerp, Belgium February 2022 Antwerp Algebra Colloquium Antwerp, Belgium Poster sessions February 2024 Introductory workshop trimester “Noncommutative algebraic geometry” at SLMath (former MSRI)  [Pdf] Berkeley, US February 2024 Connections workshop trimester “Noncommutative algebraic geometry” at SLMath (former MSRI)  [Pdf] Berkeley, US May 2023 GAPXXIII at IHP [Pdf] Paris, France Research visits During May and June 2023 I visited Bruno Vallette at Université Paris Sorbonne Nord. During November 2024 I visited Guodong Zhou at East China Normal University. Reading groups From spring 2019 until spring 2022, we ran a reading seminar on J. Lurie’s  Kerodon, together with  Matt Booth, Violeta Borges Marques, Francesco Genovese, Alessandro Lehmann, Arne Mertens and Piergiorgio Panero. Since spring 2023, we are running a reading seminar on algebraic deformation theory, together with Violeta Borges Marques, Alessandro Lehmann, Carl Mazzanti, Arne Mertens and Julie Symons. In particular, we are reading Barmeier-Wang’s work on deformation of path algebras and quivers with relations applied to categories of coherent sheaves. https://landerhermans.com/Teaching Wed, 11 Oct 2023 19:50:44 +0000 landerhermans https://landerhermans.com/Teaching Teaching 2022 - 2025 Getallen en verzamelingen (Numbers and sets)University of Antwerp - 1st year bachelor in Mathematicsfirst semester - exercise sessions Ringen en modulen (Rings and modules)University of Antwerp - 2nd year bachelor in Mathematicsfirst semester - exercise sessions 2021 - 2022 Getallen en verzamelingen (Numbers and sets)University of Antwerp - 1st year bachelor in Mathematicsfirst semester - exercise sessions Ringen en modulen (Rings and modules)University of Antwerp - 2nd year bachelor in Mathematicsfirst semester - theory sessions 2019 - 2021 Getallen en verzamelingen (Numbers and sets)University of Antwerp - 1st year bachelor in Mathematicsfirst semester - exercise sessions https://landerhermans.com/Contact Wed, 11 Oct 2023 19:50:54 +0000 landerhermans https://landerhermans.com/Contact ContactLander HermansDepartement Wiskunde - Faculteit WetenschappenUniversiteit AntwerpenMiddelheimlaan 1,2020 AntwerpenBelgiëlander dot hermans at uantwerpen dot bemy UA webpage