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In this article one builds a class of recursive sets, one establishes properties of these sets, and one proposes applications.

General Mathematics · Mathematics 2007-05-23 Florentin Smarandache

This paper presents a class of random orthogonal sequences associated with the number theoretic Hilbert transform. We present a constructive procedure for finding the random sequences for different modulus values. These random sequences…

Cryptography and Security · Computer Science 2013-11-28 Subhash Kak

In this paper we get two new classes of regular sequences in the polynomial ring over the field of complex numbers.

Commutative Algebra · Mathematics 2015-03-25 Ri-Xiang Chen

We study structure of pure morphic and morphic sequences and prove the following result: the subword complexity of arbitrary morphic sequence is either $\Theta(n^{1+1/k})$ for some $k\in\mathbb N$, or is $O(n \log n)$.

Combinatorics · Mathematics 2015-02-23 Rostislav Devyatov

Necessary and sufficient conditions for a sequence of positive integers to be the degree sequence of a k-connected simple graph are detailed. Conditions are also given under which such a sequence is necessarily k-connected.

Combinatorics · Mathematics 2015-12-19 Jonathan McLaughlin

This paper establishes new restrictions for attainable enhanced principal rank characteristic sequences (epr-sequences). These results are then used to classify two related families of sequences that are attainable by a real symmetric…

Combinatorics · Mathematics 2018-04-19 Xavier Martínez-Rivera

In the present paper we obtain the list of algebras, up to isomorphism, such that closure of any complex finite-dimensional algebra contains one of the algebra of the given list.

Rings and Algebras · Mathematics 2013-01-25 A. Kh. Khudoyberdiyev , B. A. Omirov

We investigate maximal exceptional sequences of line bundles on (P^1)^3, i.e. those consisting of 2^r elements. For r=3 we show that they are always full, meaning that they generate the derived category. Everything is done in the discrete…

Algebraic Geometry · Mathematics 2022-01-03 Klaus Altmann , Martin Altmann

We count the number of subsets of $\{1,2,\cdots,n\}$ under different conditions and study the sequence obtained as we let $n$ increase.

Combinatorics · Mathematics 2021-06-07 Hung Viet Chu

For any $n$ and $k$, we provide an explicit (that is, computable in polynomial time) example of integer $B_k$-sequence of size $n$ consisting of elements bounded by $n^{k+o(k)}$.

Combinatorics · Mathematics 2023-04-11 Igor S. Sergeev

In this note we provide a simple formula of general term of recurrent sequence.

Rings and Algebras · Mathematics 2007-05-23 S. Amghibech

We study tangent sets of strictly self-affine sets in the plane. If a set in this class satisfies the strong separation condition and projects to a line segment for sufficiently many directions, then for each generic point there exists a…

Classical Analysis and ODEs · Mathematics 2017-08-22 Antti Kaenmaki , Henna Koivusalo , Eino Rossi

In this paper, we give a class of reconstructible graphs.

Combinatorics · Mathematics 2007-05-23 Tetsuya Hosaka

We define a proper differential sequence of ordinary differential equations and introduce a method to derive an alternative sequence of integrals for such a sequence. We describe some general properties which are illustrated by several…

Exactly Solvable and Integrable Systems · Physics 2015-05-13 N. Euler , P. G. L. Leach

The Kolakoski sequence is the unique infinite sequence with values in $\{1, 2\}$ and first term twems $1, 2, \ldots$ which equals the sequence of run-lengths of itself, we call this $K(1, 2).$ We define $K(m, n)$ similarly for $m+n$ odd. A…

Combinatorics · Mathematics 2017-03-02 Bobby Shen

We show that the $Kn$--smooth part of $a^n-1$ for an integer $a>1$ is $a^{o(n)}$ for most positive integers $n$.

Number Theory · Mathematics 2022-03-24 Nikhil Balaji , Florian Luca

P(n,s) denotes the number of permutations of 1,2,...n that have exactly s sequences. Canfield and Wilf [math.CO/0609704] recently showed that P(n,s) can be written as a sum of s polynomials in n. We determine these polynomials explicitly…

Combinatorics · Mathematics 2007-05-23 Marcus Kollar

We describe two types of localization for $(\infty, 1)$-categories which determine the successive terms in the homotopy spectral sequence of a (co)simplicial object.

Algebraic Topology · Mathematics 2022-05-02 David Blanc , Nicholas Meadows

Morphic sequences form a natural class of infinite sequences, typically defined as the coding of a fixed point of a morphism. Different morphisms and codings may yield the same morphic sequence. This paper investigates how to prove that two…

Symbolic Computation · Computer Science 2024-07-29 Hans Zantema

We explain how to set up the homotopy spectral sequence of a (co)simplicial object in an $\infty$-category, with an emphasis on how to construct the differentials in a model-invariant manner.

Algebraic Topology · Mathematics 2021-10-04 David Blanc , Nicholas Meadows