Results 31 to 40 of about 152,450 (318)

Non-representable hyperbolic matroids [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2020
The generalized Lax conjecture asserts that each hyperbolicity cone is a linear slice of the cone of positive semidefinite matrices. Hyperbolic polynomials give rise to a class of (hyperbolic) matroids which properly contains the class of matroids ...
Nima Amini, Petter Branden
doaj   +1 more source

On Leonardo Pisano Hybrinomials

open access: yesMathematics, 2021
A generalization of complex, dual, and hyperbolic numbers has recently been defined as hybrid numbers. In this study, using the Leonardo Pisano numbers and hybrid numbers we investigate Leonardo Pisano polynomials and hybrinomials.
Ferhat Kürüz   +2 more
doaj   +1 more source

On Special Spacelike Hybrid Numbers

open access: yesMathematics, 2020
Hybrid numbers are generalizations of complex, hyperbolic and dual numbers. A hyperbolic complex structure is frequently used in both pure mathematics and numerous areas of physics.
Anetta Szynal-Liana, Iwona Włoch
doaj   +1 more source

Quantum Chromodynamics and the Hyperbolic Unitary Group SUh(3)

open access: yesAxioms, 2023
The paper shows that it is possible to construct quantum chromodynamics as a rigorous theory on the basis of employment of hyperbolic unitary group SUh(3), which is a symmetry group for the three-dimensional complex space of the hyperbolic type.
Nikolay Popov, Ivan Matveev
doaj   +1 more source

MCGDM Approach Using the Weighted Hyperbolic Sine Similarity Measure of Neutrosophic (Indeterminate Fuzzy) Multivalued Sets for the Teaching Quality Assessment of Teachers [PDF]

open access: yesNeutrosophic Sets and Systems, 2022
A neutrosophic (indeterminate fuzzy) multivalued set (NMS) can be effectively described by neutrosophic number sequences with identical or different neutrosophic numbers zi = i + viI  [0, 1] (i = 1, 2, …, q) for , v  R and I  [I  , I + ]. Therefore,
Mailing Zhao, Jun Ye
doaj   +1 more source

Hyperbolic manifolds with a large number of systoles

open access: yesTransactions of the American Mathematical Society, 2023
In this article, for any n ≥ 4 n\geq 4 we construct a sequence of compact hyperbolic n n -manifolds { M i } \{M_i\} with number of systoles at least as v o l ...
Dória, Cayo   +2 more
openaire   +2 more sources

Taylor’s series expansions for real powers of two functions containing squares of inverse cosine function, closed-form formula for specific partial Bell polynomials, and series representations for real powers of Pi

open access: yesDemonstratio Mathematica, 2022
In this article, by virtue of expansions of two finite products of finitely many square sums, with the aid of series expansions of composite functions of (hyperbolic) sine and cosine functions with inverse sine and cosine functions, and in the light of ...
Qi Feng
doaj   +1 more source

Hyperbolic band topology with non-trivial second Chern numbers

open access: yesNature Communications, 2023
To date, studies of topological band theory have mostly dealt with Euclidean space. Here, the authors use classical electric-circuit networks to realize topological insulators in 2D negatively-curved (hyperbolic) space with non-trivial second Chern ...
Weixuan Zhang   +4 more
doaj   +1 more source

Two identities and closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of the second kind

open access: yesDemonstratio Mathematica, 2022
In this article, the authors present two identities involving products of the Bernoulli numbers, provide four alternative proofs for these two identities, derive two closed-form formulas for the Bernoulli numbers in terms of central factorial numbers of ...
Chen Xue-Yan   +3 more
doaj   +1 more source

Additional Fibonacci-Bernoulli relations

open access: yesResearches in Mathematics, 2022
We continue our study on relationships between Fibonacci (Lucas) numbers and Bernoulli numbers and polynomials. The derivations of our results are based on functional equations for the respective generating functions, which in our case are combinations ...
K. Adegoke, R. Frontczak, T.P. Goy
doaj   +1 more source

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