Browsing by MSC "13"
Now showing items 41-60 of 87
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1609b - Mini-Workshop: Arrangements of Subvarieties, and their Applications in Algebraic Geometry
[OWR-2016-14] (2016) - (28 Feb - 05 Mar 2016)While arrangements of hyperplanes have been studied in algebra, combinatorics and geometry for a long time, recent discoveries suggest that they (and more generally arrangements of nonlinear subvarieties) play an even more ... -
1840b - Mini-Workshop: Asymptotic Invariants of Homogeneous Ideals
[OWR-2018-45] (2018) - (30 Sep - 06 Oct 2018)Recent decades have witnessed a shift in interest from isolated objects to families of objects and their limit behavior, both in algebraic geometry and in commutative algebra. A series of various invariants have been ... -
1810a - Mini-Workshop: Chromatic Phenomena and Duality in Homotopy Theory and Representation Theory
[OWR-2018-9] (2018) - (04 Mar - 10 Mar 2018)This mini-workshop focused on chromatic phenomena and duality as unifying themes in algebra, geometry, and topology. The overarching goal was to establish a fruitful exchange of ideas between experts from various areas, ... -
1240c - Mini-Workshop: Cohomology Rings and Fundamental Groups of Hyperplane Arrangements, Wonderful Compactifications, and Real Toric Varieties
[OWR-2012-49] (2012) - (01 Oct - 06 Oct 2012)The purpose of this workshop was to bring together researchers with a common interest in the objects mentioned in the title from, respectively, the points of view of toric and tropical geometry, arrangement theory, and ... -
1320b - Mini-Workshop: Constructive Homological Algebra with Applications to Coherent Sheaves and Control Theory
[OWR-2013-25] (2013) - (12 May - 18 May 2013)The main objective of this mini-workshop is to bring together recent developments in constructive homological algebra. There, the current state already reached a level of generality which allows simultaneous application ... -
2047b - Mini-Workshop: Dimers, Ising and Spanning Trees beyond the Critical Isoradial Case (online meeting)
[OWR-2020-35] (2020) - (15 Nov - 21 Nov 2020)The goal of this mini-workshop is to gather specialists of the dimer, Ising and spanning tree models around recent and ongoing progress in two directions. One is understanding the connection to the spectral curve of these ... -
0946b - Mini-Workshop: Formal Methods in Commutative Algebra: A View Toward Constructive Homological Algebra
[OWR-2009-50] (2009) - (08 Nov - 14 Nov 2009)The purpose of the mini-workshop is to bring into the same place different mathematical communities that study constructive homological algebra and are motivated by different applications (e.g., constructive algebra, symbolic ... -
1545a - Mini-Workshop: Friezes
[OWR-2015-48] (2015) - (01 Nov - 07 Nov 2015)Frieze patterns were introduced in the early 1970s by Coxeter. They are infinite arrays of numbers in which every four neighbouring entries always satisfy the same arithmetic relation. Amazingly, friezes appear in many ... -
1508a - Mini-Workshop: Ideals of Linear Subspaces, Their Symbolic Powers and Waring Problems
[OWR-2015-9] (2015) - (15 Feb - 21 Feb 2015)It is a fundamental challenge for many problems of significant current interest in algebraic geometry and commutative algebra to understand symbolic powers $I^{(m)}$ of homogeneous ideals $I$ in polynomial rings, particularly ... -
1320c - Mini-Workshop: Localising and Tilting in Abelian and Triangulated Categories
[OWR-2013-26] (2013) - (12 May - 18 May 2013)The workshop brought together experts on localisation theory and tilting theory from different parts of mathematics with the aim of fully exploiting the power of some recent developments in so far rather independent contexts. ... -
2149b - Mini-Workshop: Scattering Amplitudes, Cluster Algebras, and Positive Geometries (hybrid meeting)
[OWR-2021-57] (2021) - (05 Dec - 11 Dec 2021)Cluster algebras were developed by Fomin and Zelevinsky about twenty years ago. While the initial motivation came from within algebra (total positivity, canonical bases), it quickly became clear that cluster algebras ... -
1946c - Mini-Workshop: Seshadri Constants
[OWR-2019-53] (2019) - (10 Nov - 16 Nov 2019)Seshadri constants were defined by Demailly around 30 years ago using the ampleness criterion of Seshadri. Demailly was interested in studying problems related to separation of jets of line bundles on projective varieties, ... -
2248c - Mini-Workshop: Subvarieties in Projective Spaces and Their Projections
[OWR-2022-54] (2022) - (27 Nov - 03 Dec 2022)The major goals of this workshop are to lay paths for a systematic study of geproci (and related, e.g., projecting to almost complete intersections or full intersections) sets of points in projective spaces, study ... -
2009b - Mini-Workshop: Superpotentials in Algebra and Geometry
[OWR-2020-10] (2020) - (23 Feb - 29 Feb 2020)Mirror symmetry has been at the epicenter of many mathematical discoveries in the past twenty years. It was discovered by physicists in the setting of super conformal field theories (SCFTs) associated to closed string ... -
0908c - Mini-Workshop: Support Varieties
[OWR-2009-10] (2009) - (15 Feb - 21 Feb 2009)The notion of support is a fundamental concept which provides a geometric approach for studying various algebraic structures. The prototype for this has been Quillen’s description of the algebraic variety corresponding to ... -
0748b - Mini-Workshop: Surface Modeling and Syzygies
[OWR-2007-54] (2007) - (25 Nov - 01 Dec 2007)The problem of determining the implicit equation of the image of a rational map φ : P2 99K P3 is of theoretical interest in algebraic geometry, and of practical importance in geometric modeling. There are essentially three ... -
1651c - Mini-Workshop: Surreal Numbers, Surreal Analysis, Hahn Fields and Derivations
[OWR-2016-60] (2016) - (18 Dec - 23 Dec 2016)New striking analogies between H. Hahn’s fields of generalised series with real coefficients, G. H. Hardy’s field of germs of real valued functions, and J. H. Conway’s field No of surreal numbers, have been lately discovered ... -
The Minimal Resolution Conjecture on a general quartic surface in $\mathbb P^3$
[OWP-2017-21] (Mathematisches Forschungsinstitut Oberwolfach, 2017-07-27)Mustaţă has given a conjecture for the graded Betti numbers in the minimal free resolution of the ideal of a general set of points on an irreducible projective algebraic variety. For surfaces in $\mathbb P^3$ this conjecture ... -
Monoid valuations and value ordered supervaluations
[OWP-2011-17] (Mathematisches Forschungsinstitut Oberwolfach, 2011)We complement two papers on supertropical valuation theory ([IKR1], [IKR2]) by providing natural examples of m-valuations (= monoid valuations), after that of supervaluations and transmissions between them. The supervaluations ... -
1517a - Multivariate Splines and Algebraic Geometry
[OWR-2015-21] (2015) - (19 Apr - 25 Apr 2015)Multivariate splines are effective tools in numerical analysis and approximation theory. Despite an extensive literature on the subject, there remain open questions in finding their dimension, constructing local bases, and ...