Browsing 1 - Oberwolfach Preprints (OWP) by MFO Scientific Program "OWLF 2017"

Now showing items 1-8 of 8

A Deformed Quon Algebra

[OWP-2018-11] Randriamaro, Hery (Mathematisches Forschungsinstitut Oberwolfach, 2018-06-25)

The quon algebra is an approach to particle statistics in order to provide a theory in which the Pauli exclusion principle and Bose statistics are violated by a small amount. The quons are particles whose annihilation and ...
A McKay Correspondence for Reflection Groups

[OWP-2018-14] Buchweitz, Ragnar-Olaf; Faber, Eleonore; Ingalls, Colin (Mathematisches Forschungsinstitut Oberwolfach, 2018-07-02)

We construct a noncommutative desingularization of the discriminant of a finite reflection group $G$ as a quotient of the skew group ring $A=S*G$ . If $G$ is generated by order two reflections, then this quotient identifies ...
MOSES: A Streaming Algorithm for Linear Dimensionality Reduction

[OWP-2018-12] Eftekhari, Armin; Hauser, Raphael A.; Grammenos, Andreas (Mathematisches Forschungsinstitut Oberwolfach, 2018-06-26)

This paper introduces Memory-limited Online Subspace Estimation Scheme (MOSES) for both estimating the principal components of data and reducing its dimension. More specifically, consider a scenario where the data vectors ...
On a Cheeger Type Inequality in Cayley Graphs of Finite Groups

[OWP-2019-20] Biswas, Arindam (Mathematisches Forschungsinstitut Oberwolfach, 2019-07-22) - (7 July - 7 October 2017)

Let $G$ be a finite group. It was remarked by Breuillard-Green-Guralnick-Tao that if the Cayley graph $C(G,S)$ is an expander graph and is non-bipartite then the spectrum of the adjacency operator $T$ is bounded away from ...
Reducing sub-modules of the Bergman module $\mathbb A^{(\lambda)}(\mathbb D^n)$ under the action of the symmetric group

[OWP-2017-19] Biswas, Shibananda; Ghosh, Gargi; Misra, Gadadhar; Roy, Subrata Shyam (Mathematisches Forschungsinstitut Oberwolfach, 2017-07-20)

The weighted Bergman spaces on the polydisc, $\mathbb A^{(\lambda)}(\mathbb D^n)$ , $\lambda>0,$ splits into orthogonal direct sum of subspaces $\mathbb P_{\boldsymbol p}\big(\mathbb A^{(\lambda)}(\mathbb D^n)\big)$ indexed ...
The Tutte Polynomial of Ideal Arrangements

[OWP-2018-28] Randriamaro, Hery (Mathematisches Forschungsinstitut Oberwolfach, 2018-12-21)

The Tutte polynomial is originally a bivariate polynomial enumerating the colorings of a graph and of its dual graph. But it reveals more of the internal structure of the graph like its number of forests, of spanning ...
The Varchenko Determinant of a Coxeter Arrangement

[OWP-2017-33] Pfeiffer, Götz; Randriamaro, Hery (Mathematisches Forschungsinstitut Oberwolfach, 2017-11-24)

The Varchenko determinant is the determinant of a matrix defined from an arrangement of hyperplanes. Varchenko proved that this determinant has a beautiful factorization. It is, however, not possible to use this factorization ...
A Well-Posedness Result for Viscous Compressible Fluids with Only Bounded Density

[OWP-2018-10] Danchin, Raphaël; Fanelli, Francesco; Paicu, Marius (Mathematisches Forschungsinstitut Oberwolfach, 2018-05-28)

We are concerned with the existence and uniqueness of solutions with only bounded density for the barotropic compressible Navier-Stokes equations. Assuming that the initial velocity has slightly sub-critical regularity and ...

Browsing 1 - Oberwolfach Preprints (OWP) by MFO Scientific Program "OWLF 2017"

A Deformed Quon Algebra ﻿

A McKay Correspondence for Reflection Groups ﻿

MOSES: A Streaming Algorithm for Linear Dimensionality Reduction ﻿

On a Cheeger Type Inequality in Cayley Graphs of Finite Groups ﻿

Reducing sub-modules of the Bergman module A(λ)(Dn)\mathbb A^{(\lambda)}(\mathbb D^n) under the action of the symmetric group ﻿

The Tutte Polynomial of Ideal Arrangements ﻿

The Varchenko Determinant of a Coxeter Arrangement ﻿

A Well-Posedness Result for Viscous Compressible Fluids with Only Bounded Density ﻿

A Deformed Quon Algebra

A McKay Correspondence for Reflection Groups

MOSES: A Streaming Algorithm for Linear Dimensionality Reduction

On a Cheeger Type Inequality in Cayley Graphs of Finite Groups

Reducing sub-modules of the Bergman module $\mathbb A^{(\lambda)}(\mathbb D^n)$ under the action of the symmetric group

The Tutte Polynomial of Ideal Arrangements

The Varchenko Determinant of a Coxeter Arrangement

A Well-Posedness Result for Viscous Compressible Fluids with Only Bounded Density