Results 51 to 60 of about 4,252 (197)

On Some New Sequence Spaces and Statistical Convergence Methods for Double Sequences

Demonstratio Mathematica, 2014
In this paper, we introduce some new double sequence spaces with respect to an Orlicz function and define two new convergence methods related to the concepts of statistical convergence and lacunary statistical convergence for double sequences.
Belen Cemal, Yildirim Mustafa
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The Numerical Range of C*ψ Cφ and Cφ C*ψ

Concrete Operators, 2021
In this paper we investigate the numerical range of C*bφm Caφn and Caφn C*bφm on the Hardy space where φ is an inner function fixing the origin and a and b are points in the open unit disc.
Clifford John, Dabkowski Michael, Wiggins Alan   +2 more
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Strongly Almost Lacunary -Convergent Sequences

Abstract and Applied Analysis, 2013
We study some new strongly almost lacunary -convergent generalized difference sequence spaces defined by an Orlicz function. We give also some inclusion relations related to these sequence spaces.
Adem Kılıçman, Stuti Borgohain
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Critical temperatures of the Ising model on Sierpiñski fractal lattices [PDF]

EPJ Web of Conferences, 2020
We report our latest results of the spectra and critical temperatures of the partition function of the Ising model on deterministic Sierpiñski carpets in a wide range of fractal dimensions. Several examples of spectra are given.
Perreau Michel
doaj   +1 more source

Lacunary series in QK type spaces

Journal of Function Spaces and Applications, 2008
Under mild conditions on the weight function K we characterize lacunary series in QK(p,q) spaces, where QK(p,q) spaces are QK type spaces of functions analytic in the unit disk.
Jizhen Zhou
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CONSTRUCTION OF A SPLINE FUNCTION WITH MIXED NODE VALUES [PDF]

Journal of Mechanics of Continua and Mathematical Sciences
The present paper deals with the lacunary interpolation problem called the mixed values problem or (0, 3; 0, 2) problem for which known data points are function values at all the points, third derivatives at even knots, and second derivatives at odd ...
Rama Nand Mishra, Akhilesh Kumar Mishra, Kulbhushan Singh   +2 more
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Directional discrepancy in two dimensions

, 2009
In the present paper, we study the geometric discrepancy with respect to families of rotated rectangles. The well-known extremal cases are the axis-parallel rectangles (logarithmic discrepancy) and rectangles rotated in all possible directions ...
Bilyk, Dmitriy, Ma, Xiaomin, Pipher, Jill, Spencer, Craig   +3 more
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On a Generalized Difference Sequence Spaces of Fractional Order associated with Multiplier Sequence Defined by A Modulus Function

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
Let Γ(m) denotes the gamma function of a real number m∉{0,-1,-2,…}. Then the difference matrix Δ^α of a fractional order α is defined as (Δ^α v)_k=∑_i〖(-1)^i (Γ(α+1))/(i!Γ(α-i+1)) v_(k+i) 〗.Using the difference operator Δ^α, we introduce paranormed ...
Taja Yayıng
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Selected non-holonomic functions in lattice statistical mechanics and enumerative combinatorics

, 2015
We recall that the full susceptibility series of the Ising model, modulo powers of the prime 2, reduce to algebraic functions. We also recall the non-linear polynomial differential equation obtained by Tutte for the generating function of the q-coloured ...
Boukraa, S., Maillard, J-M.
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On lacunary Toeplitz determinants [PDF]

, 2013
By using Riemann--Hilbert problem based techniques, we obtain the asymptotic expansion of lacunary Toeplitz determinants $\det_N\big[ c_{\ell_a-m_b}[f] \big]$ generated by holomorhpic symbols, where $\ell_a=a$ (resp.
Kozlowski, K. K.
core