The Moore–Penrose inverse of a partitioned nonnegative definite matrix
, 2000 Jürgen Groß
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Speech denoising using nonnegative matrix factorization with priors [PDF]
, 2008 Kevin Wilson +3 more
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Partial Observability of Implied Volatility Matrices: Identification and Covolatilities Filtering
Mathematical Finance, EarlyView.ABSTRACT Whereas data on implied volatilities are available for a large number of assets, this is less frequently the case of implied covolatilities. We introduce a new approach based on static and dynamic Wishart models to solve this problem of missing data.
Christian Gouriéroux, Yang Lu
wiley +1 more source
Nonnegative realizations of matrix transfer functions
, 2000 K.-H. Förster, B. Nagy
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Fast Nonnegative Matrix Factorization Algorithms Using Projected Gradient Approaches for Large-Scale Problems [PDF]
, 2008 Rafał Zdunek, Andrzej Cichocki
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Public Administration, Local and Regional Governance, and Domestic Terrorism
Public Administration Review, EarlyView.ABSTRACT This study examines how the nature of public administration and local and regional governance affects domestic terrorism in 73 mixed and democratic countries from multiple regions and levels of development. In conducting a cross‐national statistical analysis from 1991 to 2019 with standard political, economic, and social controls, and ...
Lance Y. Hunter +3 more
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A note on the sequence of consecutive powers of a nonnegative matrix in max algebra
, 2001 Chin-Tzong Pang, Sy‐Ming Guu
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Nonnegative Matrix Factorization Applied to Nonlinear Speech and Image Cryptosystems [PDF]
, 2008 Xie Sheng-li, Zuyuan Yang, Yuli Fu
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Wild blocks of type A$A$ Hecke algebras are strictly wild
Bulletin of the London Mathematical Society, EarlyView.Abstract We prove that all wild blocks of type A$A$ Hecke algebras with quantum characteristic e⩾3$e \geqslant 3$ — that is, blocks of weight at least 2 — are strictly wild, with the possible exception of the weight 2 Rouquier block for e=3$e = 3$.
Liron Speyer
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Exponential actions defined by vector configurations, Gale duality, and moment‐angle manifolds
Bulletin of the London Mathematical Society, EarlyView.Abstract Exponential actions defined by vector configurations provide a universal framework for several constructions of holomorphic dynamics, non‐Kähler complex geometry, toric geometry and topology. These include leaf spaces of holomorphic foliations, intersections of real and Hermitian quadrics, the quotient construction of simplicial toric ...
Taras Panov
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