Results 111 to 120 of about 70,693 (320)

General infinitesimal variations of the Hodge structure of ample curves in surfaces

Mathematische Nachrichten, EarlyView.
Abstract Given a smooth projective complex curve inside a smooth projective surface, one can ask how its Hodge structure varies when the curve moves inside the surface. In this paper, we develop a general theory to study the infinitesimal version of this question in the case of ample curves.
Víctor González‐Alonso, Sara Torelli
wiley   +1 more source

On operator commutators [PDF]

, 1957
David C. Kleinecke
openalex   +2 more sources

Canonical Commutation Relation Derived from Witt Algebra

Mathematics
From an arbitrary definition of operators inspired by oscillators of Virasoro, an algebra is derived. It fits the structure of Virasoro algebra with null central charge or Witt algebra. The resulting formalism has yielded commutators with a dependence on
Huber Nieto-Chaupis
doaj   +1 more source

Commutators and pronilpotent subgroups in profinite groups

, 2013
Let G be a profinite group in which all pronilpotent subgroups generated by commutators are periodic.
Detomi, Eloisa, Morigi, Marta, Shumyatsky, Pavel   +2 more
core   +1 more source

Global and microlocal aspects of Dirac operators: Propagators and Hadamard states

Mathematische Nachrichten, EarlyView.
Abstract We propose a geometric approach to construct the Cauchy evolution operator for the Lorentzian Dirac operator on Cauchy‐compact globally hyperbolic 4‐manifolds. We realize the Cauchy evolution operator as the sum of two invariantly defined oscillatory integrals—the positive and negative Dirac propagators—global in space and in time, with ...
Matteo Capoferri, Simone Murro
wiley   +1 more source

Noncompact commutators in the commutant of a cyclic operator [PDF]

Proceedings of the American Mathematical Society, 1989
We show that the commutant of the operator S ⊗ ( I + S ∗ ) S \otimes \left ( {I + {S^*}} \right ) , where S S is the shift operator, contains two operators
openaire   +2 more sources

On some properties of the asymptotic Samuel function

Mathematische Nachrichten, EarlyView.
Abstract The asymptotic Samuel function generalizes to arbitrary rings the usual order function of a regular local ring. Here, we explore some natural properties in the context of excellent, equidimensional rings containing a field. In addition, we establish some results regarding the Samuel slope of a local ring.
A. Bravo, S. Encinas, J. Guillán‐Rial
wiley   +1 more source

Witt vectors, commutative and non-commutative [PDF]

Russian Mathematical Surveys, 2018
This is an overview of my papers arxiv:1602.04254 and arxiv:1604.01588.
openaire   +3 more sources

Construction of Bernstein‐Based Words and Their Patterns

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, with inspiration of the definition of Bernstein basis functions and their recurrence relation, we give construction of a new word family that we refer Bernstein‐based words. By classifying these special words as the first and second kinds, we investigate their some fundamental properties involving periodicity and symmetricity ...
Irem Kucukoglu, Yilmaz Simsek
wiley   +1 more source

The gender of commute

CIDADES, Comunidades e Territórios, 2023
It is inadequate that the phrase “women in architecture” embeds primarily the names of unknown or long forgotten female architects, or refers to contemporary female architects who are labelled and therefore indefinably distinguished from other professionals in their field.
openaire   +4 more sources