Results 71 to 80 of about 143,301 (209)

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  

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

Equivariant toric geometry and Euler–Maclaurin formulae

Communications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 451-557, March 2026.
Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell, Laurenţiu Maxim, Jörg Schürmann, Julius L. Shaneson   +3 more
wiley   +1 more source

Commutative $C^*$-algebras generated by Toeplitz operators on the super unit ball

, 2015
We extend known results about commutative $C^*$-algebras generated Toeplitz operators over the unit ball to the supermanifold setup. This is obtained by constructing commutative $C^*$-algebras of super Toeplitz operators over the super ball $\mathbb{B ...
Quiroga-Barranco, R., Sánchez-Nungaray, A.   +1 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

Local equivalence and refinements of Rasmussen's s‐invariant

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract Inspired by the notions of local equivalence in monopole and Heegaard Floer homology, we introduce a version of local equivalence that combines odd Khovanov homology with equivariant even Khovanov homology into an algebraic package called a local even–odd (LEO) triple.
Nathan M. Dunfield, Robert Lipshitz, Dirk Schütz   +2 more
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

The ∞$\infty$‐categorical reflection theorem and applications

Journal of Topology, Volume 19, Issue 1, March 2026.
Abstract We prove an ∞$\infty$‐categorical version of the reflection theorem of AdÁmek and Rosický [Arch. Math. 25 (1989), no. 1, 89–94]. Namely, that a full subcategory of a presentable ∞$\infty$‐category that is closed under limits and κ$\kappa$‐filtered colimits is a presentable ∞$\infty$‐category.
Shaul Ragimov, Tomer M. Schlank
wiley   +1 more source