Results 11 to 20 of about 624,674 (321)

On Kirchberg's Embedding Problem [PDF]

open access: yesJournal of Functional Analysis, 2015
Kirchberg's Embedding Problem (KEP) asks whether every separable C$^*$ algebra embeds into an ultrapower of the Cuntz algebra $\mathcal{O}_2$. In this paper, we use model theory to show that this conjecture is equivalent to a local approximate nuclearity
Goldbring, Isaac, Sinclair, Thomas
core   +3 more sources

Generalized Post Embedding Problems [PDF]

open access: yesTheory of Computing Systems, 2014
The Regular Post Embedding Problem extended with partial (co)directness is shown decidable. This extends to universal and/or counting versions.
Karandikar, Prateek   +1 more
core   +3 more sources

Embedding Problems and Finite Quotients [PDF]

open access: yesPacific Journal of Mathematics, 2002
We give a condition on a family of solutions of quotients of an embedding problem which implies the embedding problem has a solution. This shows, in particular, that to solve an embedding problem associated to the maximal extension of a number field ...
Chinburg, Ted, Glass, Darren B.
core   +3 more sources

An Open Problem in Embedding [PDF]

open access: hybridJournal of Combinatorial Mathematics and Combinatorial Computing
We propose and study the problem of finding the smallest nonnegative integer s such that a GDD ( m , n , 3 ; 0 , λ ) can be embedded into a BIBD ( m n + s , 3 , λ ) . We find the values of s for all cases except for the case where n ≡ 5 ( mod 6 ) and m ≡ 1 , 3 ( mod 6 ) and m ≥ 3 , which remains as an open problem.
Dinesh G. Sarvate   +2 more
openalex   +3 more sources

Certain embedding problems of semigroups, II [PDF]

open access: bronzeProceedings of the Japan Academy, Series A, Mathematical Sciences, 1965
Reikichi Yoshida
openalex   +4 more sources

Relative Embedding Problems [PDF]

open access: yesTransactions of the American Mathematical Society, 2000
We consider Galois embedding problems G ↠ H ≅ Gal ⁡ ( X / Z ) G\twoheadrightarrow H\cong \operatorname {Gal}(X/Z) such that a Galois embedding problem G ↠ Gal ⁡ ( Y / Z
Black, Elena V., Swallow, John R.
openaire   +2 more sources

Embedded plateau problem [PDF]

open access: yesTransactions of the American Mathematical Society, 2012
We show that if C is a simple closed curve bounding an embedded disk in a closed 3-manifold M, then there exists a disk D in M with boundary C such that D minimizes the area among the embedded disks with boundary C. Moreover, D is smooth, minimal and embedded everywhere except where the boundary C meets the interior of D.
openaire   +7 more sources

Distributed Virtual Network Embedding for Software-Defined Networks Using Multiagent Systems

open access: yesIEEE Access, 2021
Virtual Network Embedding (VNE), which provides methods to assign multiple Virtual Networks (VN) to a single physical Substrate Network (SN), is an important task in network virtualization. The main problem in VNE is the efficiency of assigning customers'
Ali Akbar Nasiri   +2 more
doaj   +1 more source

Minor-Embedding in Adiabatic Quantum Computation: I. The Parameter Setting Problem [PDF]

open access: yes, 2008
We show that the NP-hard quadratic unconstrained binary optimization (QUBO) problem on a graph $G$ can be solved using an adiabatic quantum computer that implements an Ising spin-1/2 Hamiltonian, by reduction through minor-embedding of $G$ in the quantum
Choi, Vicky
core   +2 more sources

TA-SBERT: Token Attention Sentence-BERT for Improving Sentence Representation

open access: yesIEEE Access, 2022
A sentence embedding vector can be obtained by connecting a global average pooling (GAP) to a pre-trained language model. The problem of such a sentence embedding vector using a GAP is that it is generated with the same weight for all words appearing in ...
Jaejin Seo   +3 more
doaj   +1 more source

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