Results 81 to 90 of about 12,228,153 (333)

On the Growth of Some Functions Related to z(n)

open access: yesMathematics, 2020
The order of appearance z : Z > 0 → Z > 0 is an arithmetic function related to the Fibonacci sequence ( F n ) n . This function is defined as the smallest positive integer solution of the congruence F k ≡ 0 ( mod n )
Pavel Trojovský
doaj   +1 more source

A hierarchy of ramified theories below primitive recursive arithmetic [PDF]

open access: yes, 2010
The arithmetical theory EA(I;O) developed by Çagman, Ostrin and Wainer ([18] and [48]) provides a formal setting for the variable separation of Bellantoni-Cook predicative recursion [6].
Spoors, Elliott John
core  

A remark on Fine's arithmetic functions

open access: yes, 2021
In this note, we take another look at some arithmetic identities of N.J. Fine associated with divisor functions. We connect these functions with indefinite quadratic forms using a result due to Andrews.
Patkowski, Alexander E.
core   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer   +4 more
wiley   +1 more source

On the Arithmetic of Abelina Functions [PDF]

open access: yesProceedings of the National Academy of Sciences, 1927
Systematic application of abelian functions to the theory of numbers discloses many new arithmetical phenomena of considerable interest. Particularly is this the case when the periods of the functions are connected by one or more singular relations in the usual sense.
openaire   +2 more sources

On some new arithmetic functions involving prime divisors and perfect powers. [PDF]

open access: yes, 2018
Integer division and perfect powers play a central role in numerous mathematical results, especially in number theory. Classical examples involve perfect squares like in Pythagora’s theorem, or higher perfect powers as the conjectures of Fermat (solved ...
Bagdasar, Ovidiu, Tatt, Ralph-Joseph
core   +1 more source

Optimization of the Production of Rubber Compounds Using Mathematical Models

open access: yesAdvanced Engineering Materials, EarlyView.
Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle   +7 more
wiley   +1 more source

Trapezoidal Type Fejér Inequalities Related to Harmonically Convex Functions and Application

open access: yesJournal of Function Spaces, 2019
Some authors introduced the concepts of the harmonically arithmetic convex functions and establish some integral inequalities of Hermite Hadamard Fejér type related to the harmonically arithmetic convex functions.
Sercan Turhan
doaj   +1 more source

Arithmetic learning in advanced age. [PDF]

open access: yesPLoS ONE, 2018
Acquisition of numerical knowledge and understanding of numerical information are crucial for coping with the changing demands of our digital society.
Laura Zamarian   +6 more
doaj   +1 more source

Basic Arithmetic Circuits

open access: yes, 2017
General‐purpose DSP processors, application‐specific processors, and algorithm‐specific processors are used to implement different types of DSP systems or subsystems.
Lars Wanhammar   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy