Results 11 to 20 of about 290,262 (199)
A strong geometric hyperbolicity property for directed graphs and monoids [PDF]
, 2014 We introduce and study a strong "thin triangle"' condition for directed graphs, which generalises the usual notion of hyperbolicity for a metric space.
Gray, Robert, Kambites, Mark
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Samplers and Extractors for Unbounded Functions [PDF]
, 2019 Blasiok (SODA\u2718) recently introduced the notion of a subgaussian sampler, defined as an averaging sampler for approximating the mean of functions f from {0,1}^m to the real numbers such that f(U_m) has subgaussian tails, and asked for explicit ...
Agrawal, Rohit
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Super-replication of European Options with Convex Payoff under Proportional Transaction Costs
Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, 2018 The paper examines the super-replication of contingent claims in a discrete time financial market with proportional transaction costs. The sole assumption on stock price dynamics is that the returns are bounded.
Agnieszka Rygiel
doaj +1 more source
Spherical Tuples of Hilbert Space Operators [PDF]
, 2014 We introduce and study a class of operator tuples in complex Hilbert spaces, which we call spherical tuples. In particular, we characterize spherical multi-shifts, and more generally, multiplication tuples on RKHS.
Chavan, S., Yakubovich, D.
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Approximate resilience, monotonicity, and the complexity of agnostic learning [PDF]
, 2014 A function $f$ is $d$-resilient if all its Fourier coefficients of degree at most $d$ are zero, i.e., $f$ is uncorrelated with all low-degree parities. We study the notion of $\mathit{approximate}$ $\mathit{resilience}$ of Boolean functions, where we say
Dachman-Soled, Dana +4 more
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Some strongly bounded classes of Banach spaces [PDF]
, 2006 We show that the classes of separable reflexive Banach spaces and of spaces with separable dual are strongly bounded. This gives a new proof of a recent result of E. Odell and Th.
Dodos, Pandelis, Ferenczi, Valentin
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Journal of Function Spaces and Applications, 2011 I. Vekua’s integral representations of holomorphic functions, whose m-th derivative (m≥0) is Hӧlder-continuous in a closed domain bounded by the Lyapunov curve, are generalized for analytic functions whose m-th derivative is representable by a Cauchy ...
Vakhtang Kokilashvili +1 more
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Classification of bounded Baire class $\xi$ functions
, 2016 Kechris and Louveau showed that each real-valued bounded Baire class 1 function defined on a compact metric space can be written as an alternating sum of a decreasing countable transfinite sequence of upper semi-continuous functions. Moreover, the length
Kiss, Viktor
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Rigidity of escaping dynamics for transcendental entire functions
, 2008 We prove an analog of Boettcher's theorem for transcendental entire functions in the Eremenko-Lyubich class B. More precisely, let f and g be entire functions with bounded sets of singular values and suppose that f and g belong to the same parameter ...
A Avila +32 more
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Weighted Polynomial Approximations: Limits for Learning and Pseudorandomness [PDF]
, 2014 Polynomial approximations to boolean functions have led to many positive results in computer science. In particular, polynomial approximations to the sign function underly algorithms for agnostically learning halfspaces, as well as pseudorandom ...
Bun, Mark, Steinke, Thomas
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