Found 1,360 Documents (Results 1–100)
A minimal completion theorem and almost everywhere equivalence for completely positive maps. (English) Zbl 07928591
Generalized orthogonal measures on the space of unital completely positive maps. (English) Zbl 07920520
A class of Schwarz qubit maps with diagonal unitary and orthogonal symmetries. (English) Zbl 07917841
On the longest chain of faces of the completely positive and copositive cones. (English) Zbl 07901471
Understanding and generalizing unique decompositions of generators of dynamical semigroups. (English) Zbl 07898309
MSC:
81-XX
Arveson’s extension theorem for conditionally unital completely positive maps. (English. Russian original) Zbl 07881440
Proc. Steklov Inst. Math. 324, 261-274 (2024); translation from Tr. Mat. Inst. Steklova 324, 277-291 (2024).
Universal constraint for relaxation rates of semigroups of qubit Schwarz maps. (English) Zbl 07871225
Nice error basis and quantum channel. (English) Zbl 07866652
MSC:
81-XX
Decomposition of tracial positive maps and applications in quantum information. (English) Zbl 07849842
Two classes of operators related to positively limited sets on Banach lattices. (English) Zbl 07842196
Computing the completely positive factorization via alternating minimization. (English) Zbl 07830559
Exploiting ideal-sparsity in the generalized moment problem with application to matrix factorization ranks. (English) Zbl 07829615
Reviewer: Adhemar Bultheel (Leuven)
Approximation hierarchies for copositive cone over symmetric cone and their comparison. (English) Zbl 07827852
MSC:
90Cxx
Positive definiteness and Fell bundles over discrete groups. arXiv:2407.02216
Preprint, arXiv:2407.02216 [math.OA] (2024).
Cross-positive linear maps, positive polynomials and sums of squares. arXiv:2401.17425
Preprint, arXiv:2401.17425 [math.FA] (2024).
A note on positive bilinear maps. (English) Zbl 1536.46040
Reviewer: Luoyi Shi (Tianjin)
Some \(C^*\)-algebraic properties of non-commutative unitary \(C^*\)-algebra and its state space structure. (English) Zbl 1539.46036
CP-semigroups and dilations, subproduct systems and superproduct systems: the multi-parameter case and beyond. (English) Zbl 1539.46051
Analog of Schoenberg’s theorem for \(a\)-conditionally negative definite matrix-valued kernels. (English. Russian original) Zbl 1526.15031
Math. Notes 114, No. 1, 66-76 (2023); translation from Mat. Zametki 114, No. 1, 81-93 (2023).
MSC:
15B48
Model theory of operator systems and \(\mathrm{C}^\ast\)-algebras. (English) Zbl 07756062
Goldbring, Isaac (ed.), Model theory of operator algebras. Berlin: De Gruyter. De Gruyter Ser. Log. Appl. 11, 343-386 (2023).
Bayesian logistic model for positive and unlabeled data. (English) Zbl 1534.62097
Torra, Vicenç (ed.) et al., Modeling decisions for artificial intelligence. 20th international conference, MDAI 2023, Umeå, Sweden, June 19–22, 2023. Proceedings. Cham: Springer. Lect. Notes Comput. Sci. 13890, 157-168 (2023).
Approximate completely positive semidefinite factorizations and their ranks. (English) Zbl 1527.15008
A practical approach to SOS relaxations for detecting quantum entanglement. (English) Zbl 1532.46048
Decoherence for Markov chains. (English) Zbl 1518.60066
Stochastic entropy production: fluctuation relation and irreversibility mitigation in non-unital quantum dynamics. (English) Zbl 1529.81084
Projections, multipliers and decomposable maps on noncommutative \(L^p\)-spaces. (Projections, multiplicateurs et applications décomposables sur des espaces \(L^p\) noncommutatifs.) (English. French summary) Zbl 1529.46043
Mémoires de la Société Mathématique de France. Nouvelle Série 177. Paris: Société Mathématique de France (SMF) (ISBN 978-2-85629-971-5). vi, 185 p. (2023).
A simplified completely positive reformulation for binary quadratic programs. (English) Zbl 1525.90319
Extending the Gneiting class for modeling spatially isotropic and temporally symmetric vector random fields. (English) Zbl 07686679
Orbit-injective covariant quantum channels. (English) Zbl 1515.81064
MSC:
81P47
Dilations, completely positive maps and geometry. (English) Zbl 1523.47004
Texts and Readings in Mathematics 84. New Delhi: Hindustan Book Agency; Singapore: Springer (ISBN 978-81-957829-2-5/hbk; 978-981-99-8351-3/hbk; 978-981-99-8354-4/pbk; 978-981-99-8352-0/ebook). xi, 246 p. (2023).
Reviewer: Jaydeb Sarkar (Bangalore)
Coexistence of chaotic and elliptic behaviors among analytic, symplectic diffeomorphisms of any surface. (Coexistence de comportements chaotiques et elliptiques parmi les symplectomorphismes analytiques de toute surface.) (English. French summary) Zbl 1521.37068
The property (d) and the almost limited completely continuous operators. (English) Zbl 1524.46027
Reviewer: Olav Nygaard (Kristiansand)
\(\alpha\)-\(z\)-Rényi relative entropy related quantities and their preservers. (English) Zbl 1529.81036
Morita equivalences for completely positive linear maps and GNS-\(C^\ast\)-correspondences. (English) Zbl 1515.46025
Sign patterns of inverse doubly nonnegative matrices and inverse completely positive matrices. (English) Zbl 1505.15033
Reviewer: Roksana Słowik (Gliwice)
The complete positivity of symmetric tridiagonal and pentadiagonal matrices. (English) Zbl 1502.15023
Fixed points of completely positive maps and their dual maps. (English) Zbl 1539.47070
Reviewer: Dumitrŭ Popa (Constanţa)
A Radon-Nikodým theorem for local completely positive invariant multilinear maps. (English) Zbl 1522.46036
Preservers of the cp-rank. (English) Zbl 1514.15007
Reviewer: Julio Benítez Lopez (Valencia)
On the number of CP factorizations of a completely positive matrix. (English) Zbl 1520.15002
Reviewer: Laura Cossu (Padova)
On equality of complete positivity and complete copositivity of positive map. (English) Zbl 1524.15001
Strong Morita equivalence for completely positive linear maps on \(C^\ast\)-algebras. (English) Zbl 1516.46036
Non-linear traces on matrix algebras, majorization, unitarily invariant norms and 2-positivity. (English) Zbl 1524.46076
Reviewer: Antonio M. Peralta (Granada)
The capacity of quiver representations and Brascamp-Lieb constants. (English) Zbl 1521.16009
Int. Math. Res. Not. 2022, No. 24, 19399-19430 (2022); erratum ibid. 2022, No. 24, 20004 (2022).
Reviewer: Sebastian Eckert (Bielefeld)
On the use of total state decompositions for the study of reduced dynamics. (English) Zbl 1516.81142
Free noncommutative hereditary kernels: Jordan decomposition, Arveson extension, kernel domination. (English) Zbl 07625708
Reviewer: Jaydeb Sarkar (Bangalore)
On factorization of separating maps on noncommutative \(L^p\)-spaces. (English) Zbl 1523.46049
Reviewer: Stanisław Goldstein (Łódź)
The extension of unital completely positive semigroups on operator systems to semigroups on \(C^*\)-algebras. (English) Zbl 1510.46043
Non-linear monotone positive maps. (English) Zbl 1524.46075
Reviewer: Takeaki Yamazaki (Kawagoe)
Which states can be reached from a given state by unital completely positive maps? (English) Zbl 1508.46043
Completely positive completely positive maps (and a resource theory for non-negativity of quantum amplitudes). (English) Zbl 1513.81008
On weak boundary representations and quasi hyperrigidity for operator systems. (English) Zbl 1505.46049
Dilation properties of measurable Schur multipliers and Fourier multipliers. (English) Zbl 1511.47010
Reviewer: Guoxing Ji (Xi’an)
Criteria and characterizations for spatially isotropic and temporally symmetric matrix-valued covariance functions. (English) Zbl 1513.42021
Purity of the embeddings of operator systems into their \(C^\ast \)- and injective envelopes. (English) Zbl 1502.46044
Free products of operator systems. (English) Zbl 1503.46044
Reviewer: Preeti Luthra (Delhi)
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