Results 61 to 70 of about 30,021 (207)

Bilocal automorphisms [PDF]

open access: yes, 2014
We prove that every bilocal automorphism of a matrix algebra is either an inner automorphism, or an inner anti-automorphism, or it is of a very special degenerate form.
Molnár, Lajos
core  

MLD Relations of Pisot Substitution Tilings

open access: yes, 2010
We consider 1-dimensional, unimodular Pisot substitution tilings with three intervals, and discuss conditions under which pairs of such tilings are locally isomorhphic (LI), or mutually locally derivable (MDL).
Arnoux P   +5 more
core   +1 more source

Enumeration of E ( s 2 )‐Optimal and Minimax‐Optimal Supersaturated Designs With 12 Rows, 11 q Columns and s max = 4

open access: yesJournal of Combinatorial Designs, Volume 33, Issue 10, Page 379-387, October 2025.
ABSTRACT The E ( s 2 )‐optimal and minimax‐optimal supersaturated designs (SSDs) with 12 rows, 11 q columns, and s max = 4 are enumerated in a computer search: there are, respectively, 34, 146, 0, 3, and 1 such designs for q = 2 , 3 , 4 , 5, and 6. Cheng and Tang proved that for q > 6, there are no such SSDs.
Luis B. Morales
wiley   +1 more source

Affine inner automorphisms of $SU(2)$

open access: yesTsukuba Journal of Mathematics, 1999
Let \(SU(2)\) be endowed with an arbitrary left invariant metric \(g\). Necessary and sufficient conditions for an inner automorphism to be harmonic or an affine transformation, are given here. The geodesics are studied at the end.
Ki, U-Hang, Park, Joon-Sik
openaire   +4 more sources

On discrete subgroups of the complex unit ball

open access: yesMathematische Nachrichten, Volume 298, Issue 10, Page 3272-3286, October 2025.
Abstract In this paper, we study conditions for a discrete subgroup of the automorphism group of the n$n$‐dimensional complex unit ball to be of convergence type or second kind, connecting these classifications to the existence of Green's functions and subharmonic or harmonic functions on its quotient space.
Aeryeong Seo
wiley   +1 more source

Hopf actions and Nakayama automorphisms

open access: yes, 2014
Let H be a Hopf algebra with antipode S, and let A be an N-Koszul Artin-Schelter regular algebra. We study connections between the Nakayama automorphism of A and S^2 of H when H coacts on A inner-faithfully.
Chan, Kenneth   +2 more
core   +1 more source

LOCALLY INNER AUTOMORPHISMS OF OPERATOR ALGEBRAS [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2009
17 pages; some substantive changes to the last section ("problems and comments")
openaire   +3 more sources

A note on local formulae for the parity of Selmer ranks

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 10, Page 3112-3132, October 2025.
Abstract In this note, we provide evidence for a certain ‘twisted’ version of the parity conjecture for Jacobians, introduced in prior work of Dokchitser, Green, Konstantinou and the author. To do this, we use arithmetic duality theorems for abelian varieties to study the determinant of certain endomorphisms acting on p∞$p^\infty$‐Selmer groups.
Adam Morgan
wiley   +1 more source

UHF flows and the flip automorphism

open access: yes, 2000
A UHF flow is an infinite tensor product type action of the reals on a UHF algebra $A$ and the flip automorphism is an automorphism of $A\otimes A$ sending $x\otimes y$ into $y\otimes x$.
A. KISHIMOTO   +6 more
core   +2 more sources

A Note on Fuzzy Automorphism and Inner Automorphism of Groups

open access: yes, 2019
The fuzzification of classical set theory came into existence when Zadeh [1] laid down the concept of a fuzzy set as a generalization of a crisp set. The objective of this paper is to extend the concept of fuzzy endomorphism to fuzzy automorphism.
Narain, Shiv   +3 more
openaire   +2 more sources

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