Results 21 to 30 of about 16,299,195 (304)

Mulatu Numbers Which Are Concatenation of Two Fibonacci Numbers

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023
Let (M_k) be the sequence of Mulatu numbers defined by M_0=4, M_1=1, M_k=M_(k-1)+M_(k-2) and (F_k) be the Fibonacci sequence given by the recurrence F_k=F_(k-1)+F_(k-2) with the initial conditions F_0=0, F_1=1 for k≥2.
Fatih Erduvan, Merve Güney Duman
doaj   +1 more source

Model Reduction Software in the SLICOT Library [PDF]

open access: yes, 2000
We describe the model reduction software developed recently for the control and systems library SLICOT. Besides a powerful collection of Fortran 77 routines implementing the last algorithmic developments for several well-known balancing related methods,
A. Varga   +3 more
core   +1 more source

Curious Generalized Fibonacci Numbers

open access: yesMathematics, 2021
A generalization of the well-known Fibonacci sequence is the k−Fibonacci sequence whose first k terms are 0,…,0,1 and each term afterwards is the sum of the preceding k terms. In this paper, we find all k-Fibonacci numbers that are curious numbers (i.e.,
Jose L. Herrera   +2 more
doaj   +1 more source

On Balancing and Order Reduction of Unstable Periodic Systems [PDF]

open access: yes, 2001
Abstract: We consider the direct application of balancing techniques to unstable periodic systems by extending the balancing concepts to arbitrary periodic systems. We extend first the balancing concepts to unstable discrete-time systems by defining the
A. Varga, Varga, Andras
core   +1 more source

New symmetry reduction method for (1+1)-dimensional differential-difference equations

open access: yesFrontiers in Physics, 2023
We propose a new symmetry reduction method for (1+1)-dimensional differential-difference equations (DDEs), namely, the λ-symmetry reduction method of solving ordinary differential equations is generalized to DDEs.
Jielin Lyu   +3 more
doaj   +1 more source

On $k$-Fibonacci balancing and $k$-Fibonacci Lucas-balancing numbers

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The balancing number $n$ and the balancer $r$ are solution of the Diophantine equation $$1+2+\cdots+(n-1) = (n+1)+(n+2)+\cdots+(n+r). $$ It is well known that if $n$ is balancing number, then $8n^2 + 1$ is a perfect square and its positive square root is
S.E. Rihane
doaj   +1 more source

Global state of harm reduction 2020. [PDF]

open access: yes, 2020
he Global State of Harm Reduction is the only report that provides an independent analysis of harm reduction in the world. Now in its the seventh edition, the Global State of Harm Reduction 2020 is the most comprehensive global mapping of harm reduction ...

core  

Shard Load Balancing Method Using State Reduction [PDF]

open access: yesJisuanji kexue, 2022
Sharding technology is one of the core technologies to solve the scalability problem of blockchain.When transactions in the P2P network are aggregated into established shards according to the rules,and the verification nodes are randomly and evenly ...
CHEN Jing, LI Zhi-huai, GAO Dong-xue, LI Min
doaj   +1 more source

Dimensionality Reduction Mappings [PDF]

open access: yes, 2011
A wealth of powerful dimensionality reduction methods has been established which can be used for data visualization and preprocessing. These are accompanied by formal evaluation schemes, which allow a quantitative evaluation along general principles and ...
Hammer, Barbara ; https://orcid.org/   +12 more
core   +2 more sources

Research on Organic Acids in Fruit Wine and Acid Reduction Strategies

open access: yesShipin gongye ke-ji, 2023
The type and content of organic acids have important influence on the quality of fruit wine. Proper amount of organic acids can give fruit wine soft taste, and has certain antibacterial effect.
Ying CAO   +5 more
doaj   +1 more source

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