Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Mingarelli, Angelo"'
Autor:
Mingarelli, Angelo B.
We prove an old conjecture that relates the existence of non-real eigenvalues of Sturm-Liouville Dirichlet problems on a finite interval to the non-existence of oscillation numbers of its real eigenfunctions, [[6], p.104, Problems 3 and 5]. This exte
Externí odkaz:
http://arxiv.org/abs/2404.19575
Autor:
Mingarelli, Angelo B.
We show that Sturm's classical comparison theorem (SCT) on the interlacing of zeros of solutions of pairs of real second order two-term ordinary differential equations necessarily fails if the usual Sturmian-type conditions on the coefficients are vi
Externí odkaz:
http://arxiv.org/abs/2204.12457
We continue the development of the basic theory of generalized derivatives as introduced in \cite{JPA} and give some of their applications. In particular, we formulate versions of a weak maximum principle, Rolle's theorem, the Mean value theorem, the
Externí odkaz:
http://arxiv.org/abs/2204.12450
Uncertainty relations between two general non-commuting self-adjoint operators are derived in a Krein space. All of these relations involve a Krein space induced fundamental symmetry operator, $J$, while some of these generalized relations involve an
Externí odkaz:
http://arxiv.org/abs/2103.04372
Autor:
Dehghan, Mohammad1 (AUTHOR) dehghan@math.carleton.ca, Mingarelli, Angelo B.1 (AUTHOR) angelo@math.carleton.ca
Publikováno v:
Fractal & Fractional. Apr2024, Vol. 8 Issue 4, p238. 21p.
Autor:
Gholizadeh Zivlaei, Leila1 (AUTHOR) leilagh@math.carleton.ca, Mingarelli, Angelo B.1 (AUTHOR) angelo@math.carleton.ca
Publikováno v:
Fractal & Fractional. Mar2024, Vol. 8 Issue 3, p148. 18p.
Publikováno v:
Journal of Physics Communications, Volume 2, Number 10 (2018)
A low-frequency gravitational-wave background (GWB) from the cosmic merger history of supermassive black holes is expected to be detected in the next few years by pulsar timing arrays. A GWB induces distinctive correlations in the pulsar residuals --
Externí odkaz:
http://arxiv.org/abs/1806.06979
Autor:
Mingarelli, Angelo B.
(Draft 3) A generalized differential operator on the real line is defined by means of a limiting process. These generalized derivatives include, as a special case, the classical derivative and current studies of fractional differential operators. All
Externí odkaz:
http://arxiv.org/abs/1803.02929
We introduce and present the general solution of three two-term fractional differential equations of mixed Caputo/Riemann Liouville type. We then solve a Dirichlet type Sturm-Liouville eigenvalue problem for a fractional differential equation derived
Externí odkaz:
http://arxiv.org/abs/1712.09891
Publikováno v:
Computational Methods for Differential Equations; Oct2024, Vol. 12 Issue 4, p651-668, 18p