Results 11 to 20 of about 3,384 (237)

Point-free Construction of Real Exponentiation [PDF]

open access: yesLogical Methods in Computer Science, 2022
We define a point-free construction of real exponentiation and logarithms, i.e.\ we construct the maps $\exp\colon (0, \infty)\times \mathbb{R} \rightarrow \!(0,\infty),\, (x, \zeta) \mapsto x^\zeta$ and $\log\colon (1,\infty)\times (0, \infty ...
Ming Ng, Steven Vickers
doaj   +1 more source

Grid-Tied Single-Phase Integrated Zeta Inverter for Photovoltaic Applications

open access: yesEnergies, 2023
Recently, the development of integrated inverters for photovoltaic systems has been widely performed to reduce overall system size, costs, and losses.
Anderson Aparecido Dionizio   +3 more
doaj   +1 more source

Topological properties of q-analogues of multiple zeta values [PDF]

open access: yesInternational Journal of Number Theory, 2019
In the space of bounded real-valued functions on the interval (0,1), we study the convergent sequences of [Formula: see text]-analogues of multiple zeta values which do not converge to 0, and we obtain the derived sets of the set of some [Formula: see text]-analogue of multiple zeta values.
Li, Zhonghua, Pan, Ende
openaire   +2 more sources

A novel approach to design of a power factor correction and total harmonic distortion reduction-based BLDC motor drive

open access: yesFrontiers in Energy Research, 2023
This study describes a novel approach to design of a power factor correction (PFC) and total harmonic distortion (THD) reduction-based brushless DC (BLDC) motor drive. The drive was designed to obtain a reduced THD for PFC.
Li Bin   +6 more
doaj   +1 more source

On the poles of topological zeta functions [PDF]

open access: yesProceedings of the American Mathematical Society, 2006
We study the topological zeta function Z t o p , f ( s ) Z_{top,f}(s) associated to a polynomial f f with complex coefficients.
Lemahieu, Ann   +2 more
openaire   +4 more sources

Holomorphy of Igusa’s and topological zeta functions for homogeneous polynomials [PDF]

open access: yesPacific Journal of Mathematics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Rodrigues, Bart, Veys, Willem
openaire   +1 more source

On topological entropy, Lefschetz numbers and Lefschetz zeta functions [PDF]

open access: yesTopology and its Applications, 2019
In the present article we give sufficient conditions for C∞ self-maps on some connected compact manifolds in order to have positive entropy. The conditions are given in terms of the Lefschetz numbers of the iterates of the map and/or its Lefschetz zeta function. We consider the cases where the manifold is a compact orientable and non-orientable surface,
Llibre, Jaume, Sirvent, Víctor F.
openaire   +6 more sources

On the smallest poles of topological zeta functions [PDF]

open access: yesCompositio Mathematica, 2004
18 pages, to appear in Compositio ...
Segers, Dirk, Veys, Willem
openaire   +2 more sources

Water Pumping System Supplied by a PV Generator and with a Switched Reluctance Motor Using a Drive Based on a Multilevel Converter with Reduced Switches

open access: yesDesigns, 2023
Pumping systems play a fundamental role in many applications. One of the applications in which these systems are very important is to pump water. However, in the real world context, the use of renewable energies to supply this kind of system becomes ...
Vitor Fernão Pires   +6 more
doaj   +1 more source

Combinatorial analogs of topological zeta functions [PDF]

open access: yesDiscrete Mathematics, 2019
In this article we introduce a new matroid invariant, a combinatorial analog of the topological zeta function of a polynomial. More specifically we associate to any ranked, atomic meet-semilattice L a rational function Z(L,s), in such a way that when L is the lattice of flats of a complex hyperplane arrangement we recover the usual topological zeta ...
openaire   +3 more sources

Home - About - Disclaimer - Privacy