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We suggest a few projects for studying vertex algebras with emphasis on finite group viewpoints.

Rings and Algebras · Mathematics 2019-03-22 Robert L. Griess,

We study the geometric properties of random multiplicative cascade measures defined on self-similar sets. We show that such measures and their projections and sections are almost surely exact-dimensional, generalizing Feng and Hu's result…

Dynamical Systems · Mathematics 2017-05-17 Kenneth Falconer , Xiong Jin

A synaptic algebra is a generalization of the Jordan algebra of selfadjoint elements of a von Neumann algebra. We study symmetries in synaptic algebras, i.e., elements whose square is the unit element, and we investigate the equivalence…

Mathematical Physics · Physics 2013-04-17 David J. Foulis , Sylvia Pulmannova

We describe $\sigma$-matching, interchangeable and, as a consequence, totally compatible products on null-filiform associative algebras.

Rings and Algebras · Mathematics 2026-03-10 Kobiljon Abdurasulov , Jobir Adashev , Feruza Toshtemirova

By imposing system-observer symmetry on the von Neumann description of measurement, it is shown that the quantum measurement problem is structurally equivalent to a familiar reverse-engineering problem: that of describing the behavior of an…

Quantum Physics · Physics 2013-08-13 Chris Fields

The purpose of this note is to prove some boundedness/compactness results of a harmonic analysis flavor for the Bergman and Szeg\H{o} projections on certain classes of planar domains using conformal mappings. In particular, we prove…

Complex Variables · Mathematics 2023-03-27 Nathan A. Wagner

The compatibility between the conformal symmetry and the closure of conformal algebras is discussed on the nonlinear sigma model. The present approach, above the basis of field redefinition employed in the Hamiltonian scheme, attempts the…

High Energy Physics - Theory · Physics 2007-05-23 Simon C. Lin , Feng Yin Li , Tsong Ming Liaw

These notes collect results about algebraic correspondences and adapt them to the setting of correspondences on projective lines. The focus lies on finite orbits of algebraic correspondences. The main result is a field theoretic…

Commutative Algebra · Mathematics 2025-11-11 Manfred Buchacher

If there exists a completely bounded projection of B(H) onto a von Neumann algebra M on H, then M is injective. If there exists a bounded projection and M is properly infinite, the same conclusion holds.

funct-an · Mathematics 2008-02-03 Erik Christensen , Allan M. Sinclair

We present a geometric interpretation of tight closure in terms of vector bundles and projective bundles.

Algebraic Geometry · Mathematics 2007-05-23 Holger Brenner

We discuss solutions of several questions concerning the geometry of conformal planes.

Differential Geometry · Mathematics 2022-11-29 Alexander Lytchak

In this talk, I will survey recent progress made on the classification of von Neumann algebras arising from countable groups and their actions on probability spaces. In particular, I will present the first results which provide classes of…

Operator Algebras · Mathematics 2012-12-04 Adrian Ioana

A space for gauge theories is defined, using projective limits as subsets of Cartesian products of homomorphisms from a lattice on the structure group. In this space, non-interacting and interacting measures are defined as well as functions…

Mathematical Physics · Physics 2015-05-18 Rui Vilela Mendes

We determined the $\tau$-tilting finiteness of Schur algebras over an algebraically closed field of arbitrary characteristic, except for a few small cases.

Representation Theory · Mathematics 2021-12-23 Qi Wang

Using an approach emerging from the theory of closable derivations on von Neumann algebras, we exhibit a class of groups CR satisfying the following property: given any groups G_1, G_2 in CR, then any free, ergodic, measure preserving…

Operator Algebras · Mathematics 2019-12-19 Ionut Chifan , Jesse Peterson

The article exhibits certain relations between the injective envelope I(A) of a C*-algebra A and the von Neumann algebra generated by a representation lambda of A provided it is injective. More specifically we show that there exist positive…

Operator Algebras · Mathematics 2024-11-14 Ulrich Haag

We give a summary on spectral techniques for finite dimensional algebras and study its link to singularity theory. In particular, we offer a contribution to the categorification of the Milnor lattice of two-dimensional singularities through…

Representation Theory · Mathematics 2008-05-08 Helmut Lenzing , Jose Antonio de la Pena

We bound integral means of the Bergman projection of a function in terms of integral means of the original function. As an application of these results, we bound certain weighted Bergman space norms of derivatives of Bergman projections in…

Complex Variables · Mathematics 2016-09-30 Timothy Ferguson

It is shown that for every measure $m$ on projections in a $W^*$-algebra of type $I_2$, there exists a Hilbert-valued orthogonal vector measure $\mu$ such that $\|\mu(p)\|^2= m(p)$ for every projection $p$. With regard to J. Hamhalter's…

Operator Algebras · Mathematics 2011-12-26 A. N. Sherstnev

We obtain some necessary and sufficient conditions for the boundedness of a family of positive operators defined on symmetric cones, we then deduce off-diagonal boundedness of associated Bergman-type operators in tube domains over symmetric…

Classical Analysis and ODEs · Mathematics 2017-09-13 Cyrille Nana , Benoît F. Sehba