Results 71 to 80 of about 7,643 (187)
The finite sum of finite products of Toeplitz operators on the polydisk
Journal of Mathematical Analysis and Applications, 2006 This paper gives some connection between the theory of Toeplitz operator theory and function theory of the polydisk, and establishes a limit theorem for a finite sum of finite products of Toeplitz operators on the Hardy space in the polydisk. As a consequence, it shows that the product of six Toeplitz operators with pluriharmonic symbols is compact if ...
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Exponential sums with reducible polynomials
Discrete Analysis, 2019 Exponential sums with reducible polynomials, Discrete Analysis 2019:15, 31 pp. A sequence $(a_n)$ of real numbers in the interval $[0,1]$ is said to be _equidistributed_ if for every subinterval $[a,b]$ of $[0,1]$, the proportion of the $a_n$ that live
Cécile Dartyge, Greg Martin
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General expectation of partitional moment functions
Revista Técnica de la Facultad de Ingeniería, 2011 The paper provides a general theory for expected values of linear functions of products of sample power sums in terms of products of population power sums -all given symbolically by partitions.
D. S. Tracy, P. S. Dwyer
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Finding finite sums, products, and limits of some numerical sequences. Part 2. Application of methods of higher mathematics. Finding sums of series [PDF]
, 2021 Valerii O. Bilyi, Oleksandr G. Bilyi
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EPJ Web of Conferences, 2018 We discuss recent developments for exact reformulations of lattice field theories in terms of worldlines and worldsheets. In particular we focus on a strategy which is applicable also to non-abelian theories: traces and matrix/vector products are written
Gattringer Christof +2 more
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Monochromatic sums and products
Discrete Analysis, 2016 Monochromatic sums and products, Discrete Analysis 2016:5, 48pp. An old and still unsolved problem in Ramsey theory asks whether if the positive integers are coloured with finitely many colours, then there are positive integers $x$ and $y$ such that $x,
Ben Green, Tom Sanders
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Properness of nilprogressions and the persistence of polynomial growth of given degree
Discrete Analysis, 2018 Properness of nilprogressions and the persistence of polynomial growth of given degree, Discrete Analysis 2018:17, 38 pp. A $k$-_dimensional arithmetic progression_ is a set $P$ of the form $\{a_0+\sum_{i=1}^ka_id_i:0\leq ...
Romain Tessera, Matthew Tointon
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East European Journal of Physics, 2016 Klein-Gordon and Dirac equations are generalized to eliminate divergences in the integrals for Green functions of these equations. The generalized equations are presented as products of the operators for the Klein-Gordon equation with different masses ...
Yu. V. Kulish
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On correlation functions in models related to the Temperley-Lieb algebra
SciPost PhysicsWe deal with quantum spin chains whose Hamiltonian arises from a representation of the Temperley-Lieb algebra, and we consider the mean values of those local operators which are generated by the Temperley-Lieb algebra.
Kohei Fukai, Raphael Kleinemühl, Balázs Pozsgay, Eric Vernier
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On the use of the Operator Product Expansion in finite-energy sum rules for light-quark correlators [PDF]
, 2021 Diogo Boito +3 more
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