Results 61 to 70 of about 143,581 (207)

Structure of Divergence-Free Lie Algebras

, 2000
One of the four well-known series of simple Lie algebras of Cartan type is the series of Lie algebras of Special type, which are divergence-free Lie algebras associated with polynomial algebras and the operators of taking partial derivatives, connected ...
Su, Yucai, Xu, Xiaoping
core   +2 more sources

Laws and Reasons Why

Analytic Philosophy, EarlyView.
ABSTRACT Laws play some role in explanations: at the very least, they somehow connect what is explained, or the explanandum, to what explains, or the explanans. Thus, thermodynamical laws connect the match's being struck and its lightning, so that the former causes the latter; and laws about set formation connect Socrates' existence with {Socrates}'s ...
Julio De Rizzo
wiley   +1 more source

W1+∞ and W˜ algebras, and Ward identities

Physics Letters B
It was demonstrated recently that the W1+∞ algebra contains commutative subalgebras associated with all integer slope rays (including the vertical one).
Ya. Drachov, A. Mironov, A. Popolitov
doaj   +1 more source

Zip and weak zip algebras in a congruence-modular variety [PDF]

Journal of Mahani Mathematical Research
The zip (commutative) rings, introduced by Faith and Zelmanowitz, generated a fruitful line of investigation in ring theory. Recently, Dube, Blose and Taherifar developed an abstract theory of zippedness by means of frames.
George Georgescu
doaj   +1 more source

Feigin-Frenkel center in types B, C and D

, 2011
For each simple Lie algebra g consider the corresponding affine vertex algebra V_{crit}(g) at the critical level. The center of this vertex algebra is a commutative associative algebra whose structure was described by a remarkable theorem of Feigin and ...
A. I. Molev, A. Jucys, A. Molev, A. Sole De, A.A. Tarasov, A.B. Zamolodchikov, A.P. Isaev, A.P. Isaev, B. Feigin, B. Feigin, B. Feigin, D. Arnaudon, D. Arnaudon, D.V. Talalaev, E. Frenkel, E. Frenkel, E. Frenkel, J. Dixmier, L.G. Rybnikov, L.G. Rybnikov, M. Nazarov, M. Nazarov, N.Yu. Reshetikhin, R. Brauer, R. Goodman, R. Howe, R. Leduc, R.M. Asherova, T. Hayashi, V. Kac, V.G. Drinfeld, V.G. Kac   +31 more
core   +1 more source

Division Algebras with Left Algebraic Commutators [PDF]

Algebras and Representation Theory, 2017
لنفترض أن D عبارة عن جبر قسمة مع المركز F و K a (ليس بالضرورة مركزيًا) من D. يسمى العنصر a D جبريًا يساريًا (جبريًا أيمنًا) على K، إذا كان هناك متعدد حدود أيسر غير صفري a 0 + a 1 x + i + a n x n (متعدد الحدود الأيمن resp. a 0 + x a 1 + i + x n a n ) على K بحيث يكون 0 + a 1 a + i + a n a n = 0 (resp. a 0 + a 1 + i + a n a n a n ).
Mehdi Aaghabali, Saieed Akbari, Mai Hoang Bien   +2 more
openaire   +1 more source

A Collapse Result in the Mereology of Properties

Ratio, EarlyView.
ABSTRACT I examine five principles about the metaphysics of properties, each of which has been defended in the literature: (1) the sum of properties is their corresponding conjunctive property, (2) the mereology of properties is classical, (3) properties are individuated by necessary co‐instantiation, (4) sums of objects belonging to different ...
Alejandro G. Di Rienzo
wiley   +1 more source

Commutative C⁎-Algebras of Toeplitz Operators via the Moment Map on the Polydisk

Journal of Function Spaces, 2016
We found that in the polydisk Dn there exist (n+1)(n+2)/2 different classes of commutative C⁎-algebras generated by Toeplitz operators whose symbols are invariant under the action of maximal Abelian subgroups of biholomorphisms.
Mauricio Hernández-Marroquin, Armando Sánchez-Nungaray, Luis Alfredo Dupont-García   +2 more
doaj   +1 more source

Spatial discretization of restricted group algebras [PDF]

, 2010
We consider spatial discretizations by the finite section method of the restricted group algebra of a finitely generated discrete group, which is represented as a concrete operator algebra via its left-regular representation.
Steffen Roch, Steffen Roch, Technische Universität Darmstadt   +2 more
core  

Twisting all the way: from algebras to morphisms and connections

, 2012
Given a Hopf algebra H and an algebra A that is an H-module algebra we consider the category of left H-modules and A-bimodules, where morphisms are just right A-linear maps (not necessarily H-equivariant). Given a twist F of H we then quantize (deform) H
Aschieri, Paolo
core   +1 more source