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77 Results Found

  • Article
  • Open Access
4 Citations
3,000 Views
13 Pages

Option Pricing, Zero Lower Bound, and COVID-19

  • Giacomo Morelli and
  • Lea Petrella

13 September 2021

This paper provides a quantitative assessment of equity options priced at the Zero Lower Bound, i.e., when interest rates are set essentially to zero. We obtain closed form formulas for American options when the Zero Lower Bound policy holds. We perf...

  • Article
  • Open Access
2 Citations
5,652 Views
18 Pages

The Cost of Overcoming the Zero Lower-Bound: A Welfare Analysis

  • Gerhard Rösl,
  • Franz Seitz and
  • Karl-Heinz Tödter

To broaden the operational scope of monetary policy, several authors suggest cash abolition as an appropriate means of breaking through the zero lower-bound. We argue that the welfare costs of bypassing the zero lower-bound by getting rid of cash ent...

  • Article
  • Open Access
1,511 Views
33 Pages

29 August 2024

After the 2007 financial crisis, many central banks adopted policies to lower their interest rates; the dynamics of these rates cannot be captured using classical models. Recently, Meucci and Loregian proposed an approach to estimate nonnegative inte...

  • Article
  • Open Access
1,764 Views
11 Pages

A Lower Bound for the Volatility Swap in the Lognormal SABR Model

  • Elisa Alòs,
  • Frido Rolloos and
  • Kenichiro Shiraya

29 July 2023

In the short time to maturity limit, it is proved that for the conditionally lognormal SABR model the zero vanna implied volatility is a lower bound for the volatility swap strike. The result is valid for all values of the correlation parameter and i...

  • Article
  • Open Access
1 Citations
2,232 Views
22 Pages

5 October 2022

In the present paper, we investigate the financial homogeneity of the euro area economies by contrasting eurozone countries’ responses to monetary policy steps to the theoretical assumptions of the liquidity trap phenomenon. Our assumption is t...

  • Article
  • Open Access
1 Citations
2,060 Views
24 Pages

This study investigates the impact of central bank digital currencies (CBDCs) on monetary policy flexibility, the effective lower bound (ELB), and negative interest rate policies (NIRPs), specifically in the case of the digital euro (DE). Through a c...

  • Article
  • Open Access
3 Citations
1,995 Views
15 Pages

19 February 2022

The distance between successive zeros of all solutions of first-order differential equations with several delays is studied in this work. Many new estimations for the upper bound of the distance between zeros are obtained. Our results improve many-we...

  • Article
  • Open Access
2 Citations
2,871 Views
15 Pages

13 August 2018

We consider the constrained ordered weighted averaging (OWA) aggregation problem with a single constraint and lower bounded variables. For the three-dimensional constrained OWA aggregation problem with lower bounded variables, we present four types o...

  • Article
  • Open Access
1,352 Views
29 Pages

11 June 2025

The channel reliability function is a crucial tool for characterizing the dependable transmission of messages across communication channels. In many cases, the only upper and lower bounds of this function are known. We investigate the computability o...

  • Article
  • Open Access
3,464 Views
19 Pages

20 July 2020

In this paper, we consider techniques for establishing lower bounds on the number of arm pulls for best-arm identification in the multi-armed bandit problem. While a recent divergence-based approach was shown to provide improvements over an older gap...

  • Article
  • Open Access
3,302 Views
15 Pages

25 October 2017

The paper contributes to stabilization problems of linear systems subject to time-varying delays. Drawing upon small gain criteria and robust analysis techniques, upper and lower bounds on the largest allowable time-varying delay are developed by usi...

  • Article
  • Open Access
2 Citations
5,471 Views
13 Pages

7 June 2017

The explicit form of the rate-distortion function has rarely been obtained, except for few cases where the Shannon lower bound coincides with the rate-distortion function for the entire range of the positive rate. From an information geometrical poin...

  • Article
  • Open Access
4 Citations
2,459 Views
11 Pages

This paper applies two different types of Riemann–Liouville derivatives to solve fractional differential equations of second order. Basically, the properties of the Riemann–Liouville fractional derivative depend mainly on the lower bound...

  • Article
  • Open Access
12 Citations
3,768 Views
23 Pages

7 September 2018

The capacity region of a two-transmitter Gaussian multiple access channel (MAC) under average input power constraints is studied, when the receiver employs a zero-threshold one-bit analogue-to-digital converter (ADC). It is proven that the input dist...

  • Article
  • Open Access
17 Citations
4,335 Views
30 Pages

On the Reliability Function of Variable-Rate Slepian-Wolf Coding

  • Jun Chen,
  • Da-ke He,
  • Ashish Jagmohan and
  • Luis A. Lastras-Montaño

28 July 2017

The reliability function of variable-rate Slepian-Wolf coding is linked to the reliability function of channel coding with constant composition codes, through which computable lower and upper bounds are derived. The bounds coincide at rates close to...

  • Article
  • Open Access
4 Citations
4,479 Views
13 Pages

Effect of Quantum Coherence on Landauer’s Principle

  • Kazunari Hashimoto and
  • Chikako Uchiyama

13 April 2022

Landauer’s principle provides a fundamental lower bound for energy dissipation occurring with information erasure in the quantum regime. While most studies have related the entropy reduction incorporated with the erasure to the lower bound (ent...

  • Article
  • Open Access
2 Citations
3,600 Views
52 Pages

Based on the geometry of a radial function, a sequence of approximations for arcsine, arccosine and arctangent are detailed. The approximations for arcsine and arccosine are sharp at the points zero and one. Convergence of the approximations is prove...

  • Article
  • Open Access
2 Citations
3,019 Views
32 Pages

1 December 2019

In this paper, we introduce the zero-delay multiple-description problem, where an encoder constructs two descriptions and the decoders receive a subset of these descriptions. The encoder and decoders are causal and operate under the restriction of ze...

  • Article
  • Open Access
2 Citations
1,851 Views
17 Pages

On the Extended Adjacency Eigenvalues of a Graph

  • Alaa Altassan,
  • Hilal A. Ganie and
  • Yilun Shang

26 September 2024

Let H be a graph of order n with m edges. Let di=d(vi) be the degree of the vertex vi. The extended adjacency matrix Aex(H) of H is an n×n matrix defined as Aex(H)=(bij), where bij=12didj+djdi, whenever vi and vj are adjacent and equal to zero...

  • Article
  • Open Access
1,957 Views
29 Pages

5 January 2024

Quantum Parameter Estimation (QPE) is commonly led using quantum probe states for the characterization of quantum systems. For these purposes, Quantum Fisher Information (QFI) plays a crucial role by imposing a lower bound for the parametric estimati...

  • Article
  • Open Access
3 Citations
2,523 Views
10 Pages

On the Covering Radius of Codes over Z p k

  • Mohan Cruz,
  • Chinnapillai Durairajan and
  • Patrick Solé

3 March 2020

In this correspondence, we investigate the covering radius of various types of repetition codes over Z p k ( k ≥ 2 ) with respect to the Lee distance. We determine the exact covering radius of the various repetition codes, which have...

  • Feature Paper
  • Article
  • Open Access
3 Citations
1,717 Views
37 Pages

24 January 2025

A private compression design problem is studied, where an encoder observes useful data Y, wishes to compress them using variable-length code, and communicates them through an unsecured channel. Since Y are correlated with the private attribute X, the...

  • Article
  • Open Access
5 Citations
6,887 Views
12 Pages

On the Query Complexity of Black-Peg AB-Mastermind

  • Mourad El Ouali,
  • Christian Glazik,
  • Volkmar Sauerland and
  • Anand Srivastav

2 January 2018

Mastermind is a two players zero sum game of imperfect information. Starting with Erdős and Rényi (1963), its combinatorics have been studied to date by several authors, e.g., Knuth (1977), Chvátal (1983), Goodrich (2009). The first player, called “c...

  • Article
  • Open Access
4 Citations
6,828 Views
13 Pages

Relative Entropy Derivative Bounds

  • Pablo Zegers,
  • Alexis Fuentes and
  • Carlos Alarcón

23 July 2013

We show that the derivative of the relative entropy with respect to its parameters is lower and upper bounded. We characterize the conditions under which this derivative can reach zero. We use these results to explain when the minimum relative entrop...

  • Article
  • Open Access
2 Citations
2,027 Views
12 Pages

23 July 2023

Given several nonnegative matrices with a single pattern of allocation among their zero/nonzero elements, the average matrix should have the same pattern, too. This is the first tenet of the pattern-multiplicative average (PMA) concept, while the sec...

  • Article
  • Open Access
6 Citations
2,897 Views
10 Pages

Hulls of linear codes have been extensively studied due to their wide applications and links with the efficiency of some algorithms in coding theory. In this paper, the average dimension of the Euclidean hull of negacyclic codes of length n over fini...

  • Article
  • Open Access
2 Citations
1,732 Views
18 Pages

2 June 2023

The existence of Fano resonances in dynamic resonant tunneling (RT) systems has been investigated. Fano resonances are characterized by the appearance of a 100% reflection coefficient in proximity to a high transmission coefficient. For a Fano resona...

  • Article
  • Open Access
5 Citations
3,156 Views
18 Pages

The issue of the robust exponential passivity analysis for uncertain neutral-type neural networks with mixed interval time-varying delays is discussed in this work. For our purpose, the lower bounds of the delays are allowed to be either positive or...

  • Article
  • Open Access
47 Citations
4,438 Views
23 Pages

25 December 2018

Due to the existence of time-varying chaotic disturbances in complex applications, the chaotic synchronization of sensor systems becomes a tough issue in industry electronics fields. To accelerate the synchronization process of chaotic sensor systems...

  • Article
  • Open Access
4 Citations
2,269 Views
20 Pages

26 March 2023

A class of heterogeneous second-order multi-agent consensus problems is studied, in which an event-triggered method is used to improve the feasibility of the control protocol. The sliding mode control method is used to achieve the robustness of the s...

  • Article
  • Open Access
1 Citations
2,258 Views
16 Pages

16 October 2023

The paper presents an event-triggered higher-order sliding mode controller design. The event-triggering technique is the alternative approach to real-time controller execution, unlike the classic time-triggering technique, which is not time-dependabl...

  • Article
  • Open Access
13 Citations
3,641 Views
21 Pages

Sunflower and Watermelon Seeds and Their Hybrids with Pineapple Leaf Fibers as New Novel Thermal Insulation and Sound-Absorbing Materials

  • Mohamed Ali,
  • Zeyad Al-Suhaibani,
  • Redhwan Almuzaiqer,
  • Khaled Al-Salem,
  • Abdullah Nuhait,
  • Fahad Algubllan,
  • Meshari Al-Howaish,
  • Abdullah Aloraini and
  • Ibrahim Alqahtani

16 November 2023

Pineapple leaf fiber (PALF), striped sunflower seed fiber (SFSF), and watermelon seed (WMS) are considered natural waste polymer materials, which are biodegradable and sustainable. This study presents new novel thermal insulation and sound absorption...

  • Feature Paper
  • Article
  • Open Access
2 Citations
3,862 Views
26 Pages

Two-Party Zero-Error Function Computation with Asymmetric Priors

  • Basak Guler,
  • Aylin Yener,
  • Prithwish Basu and
  • Ananthram Swami

23 November 2017

We consider a two party network where each party wishes to compute a function of two correlated sources. Each source is observed by one of the parties. The true joint distribution of the sources is known to one party. The other party, on the other ha...

  • Article
  • Open Access
2,197 Views
29 Pages

19 October 2023

A flexible extended Krylov subspace method (F-EKSM) is considered for numerical approximation of the action of a matrix function f(A) to a vector b, where the function f is of Markov type. F-EKSM has the same framework as the extended Krylov subspace...

  • Article
  • Open Access
7 Citations
3,383 Views
12 Pages

Some Bounds on Zeroth-Order General Randić Index

  • Muhammad Kamran Jamil,
  • Ioan Tomescu,
  • Muhammad Imran and
  • Aisha Javed

7 January 2020

For a graph G without isolated vertices, the inverse degree of a graph G is defined as I D ( G ) = ∑ u ∈ V ( G ) d ( u ) − 1 where d ( u ) is the number of vertices adjacent to the vertex u in G. By replacin...

  • Communication
  • Open Access
729 Views
10 Pages

Fractional Probit with Cross-Sectional Volatility: Bridging Heteroskedastic Probit and Fractional Response Models

  • Songsak Sriboonchitta,
  • Aree Wiboonpongse,
  • Jittaporn Sriboonjit and
  • Woraphon Yamaka

This paper introduces a new econometric framework for modeling fractional outcomes bounded between zero and one. We propose the Fractional Probit with Cross-Sectional Volatility (FPCV), which specifies the conditional mean through a probit link and a...

  • Article
  • Open Access
15 Citations
10,189 Views
24 Pages

19 June 2012

The application of the Maximum Entropy (ME) principle leads to a minimum of the Mutual Information (MI), I(X,Y), between random variables X,Y, which is compatible with prescribed joint expectations and given ME marginal distributions. A sequence of s...

  • Article
  • Open Access
5 Citations
2,778 Views
33 Pages

9 October 2022

This paper addresses the issue of optimal redundancy allocation in hybrid structure large binary systems. Two aspects of optimization are considered: (1) maximizing the reliability of the system under the cost constraint, and (2) obtaining the necess...

  • Article
  • Open Access
1,548 Views
18 Pages

Some Constructions and Mathematical Properties of Zero-Correlation-Zone Sonar Sequences

  • Xiaoxiang Jin,
  • Gangsan Kim,
  • Sangwon Chae and
  • Hong-Yeop Song

5 April 2024

In this paper, we propose the zero-correlation-zone (ZCZ) of radius r on two-dimensional m×n sonar sequences and define the (m,n,r) ZCZ sonar sequences. We also define some new optimality of an (m,n,r) ZCZ sonar sequence which has the largest r...

  • Article
  • Open Access
201 Views
31 Pages

Hybrid trolleybuses (HTBs) with in-motion charging (IMC) can extend zero-emission service using existing catenary, but high on-wire charging powers may concentrate loads and accelerate battery aging. We present a data-driven simulation that replays r...

  • Article
  • Open Access
1 Citations
5,481 Views
17 Pages

Segment Anything Model (SAM) and Medical SAM (MedSAM) for Lumbar Spine MRI

  • Christian Chang,
  • Hudson Law,
  • Connor Poon,
  • Sydney Yen,
  • Kaustubh Lall,
  • Armin Jamshidi,
  • Vadim Malis,
  • Dosik Hwang and
  • Won C. Bae

7 June 2025

Lumbar spine Magnetic Resonance Imaging (MRI) is commonly used for intervertebral disc (IVD) and vertebral body (VB) evaluation during low back pain. Segmentation of these tissues can provide useful quantitative information such as shape and volume....

  • Article
  • Open Access
13 Citations
3,240 Views
14 Pages

This paper proposes the preliminary results on a novel control architecture based on model predictive control (MPC) for cable-driven parallel robots (CDPRs) and applies them to a three degrees of freedom (3-DOF) robot with a suspended configuration,...

  • Article
  • Open Access
1,622 Views
10 Pages

25 February 2023

This paper studies the global asymptotic regulation problem for a class of lower-triangular nonlinear systems with actuator failures and limited delays. New integral controllers consisting of an integral dynamic are constructed to make all system sta...

  • Article
  • Open Access
22 Citations
3,635 Views
32 Pages

8 May 2018

We consider the rate distortion problem with side information at the decoder posed and investigated by Wyner and Ziv. Using side information and encoded original data, the decoder must reconstruct the original data with an arbitrary prescribed distor...

  • Article
  • Open Access
3 Citations
2,391 Views
24 Pages

6 February 2020

A D-dimensional Einstein–Gauss–Bonnet model with a cosmological term Λ , governed by two non-zero constants: α 1 and α 2 , is considered. By restricting the metrics to diagonal ones, we study a class...

  • Article
  • Open Access
1 Citations
2,294 Views
18 Pages

28 June 2022

This paper models the foreign exchange intervention policy following the Rayleigh process derived from the standard flexible-price monetary framework. The exchange rate dynamics associated with the interventions are more sensitive to the change in th...

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