activity
20242026
most citedA new approach in two-dimensional heavy-tailed distributions

2 citations · 5 across the 18 of their papers we have counts for

collaborators

20 papers

math.PR2026

Asymptotic estimations for a nonstandard bidimensional risk model with dependent claims and constant interest force

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper we extend the results from Yang and Li(2017), in a non-renewal driven bivariate risk model. Concretely, we are interested in the asymptotic behavior of the joint tail…

math.PR2026

Local uniform asymptotics for a non-standard risk model and interplay of insurance and financial risks stemming by systemic factors

Dimitrios G. Konstantinides, Charalampos D. Passalidis, Meng Yuan

In this paper we study local uniform, with respect to time, asymptotic expressions for the asymptotic behavior of the entrance probability of discounted aggregate claims to some ra…

math.PR2026

Interplay of insurance and financial risks in a non Levy-Renewal environment

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper we consider a multivariate risk model, with common counting process and common process of logarithmic returns for the investment portfolio. We assume that the claim-v…

math.PR2026

Uniform asymptotics for a multidimensional renewal risk model with random number of delayed claims and multivariate subexponentiality

Dimitrios G. Konstantinides, Charalampos D. Passalidis, Meng Yuan

In this paper we examine a multivariate risk model, with common renewal counting process, constant interest rate, and each claim vector is accompanied by a random number of delayed…

math.PR2026

Asymptotics for a nonstandard risk model with multivariate subexponential claims and constant interest force

Dimitrios G. Konstantinides, Charalampos D. Passalidis, Hui Xu

In this paper, the asymptotic behavior of the entrance probability of discounted aggregate claims of a certain family of rare sets is studied, considering the finite and infinite t…

math.PR2026

Asymptotics of randomly weighted sums without moment conditions of random weights

Qingwu Gao, Dimitrios G. Konstantinides, Charalampos D. Passalidis +2

In the paper, we investigate the asymptotics of randomly weighted sums with upper tail asymptotically independent and quasi-upper tail asymptotically independent primary random var…

math.PR2025

Multivariate subexponentiality and interplay of insurance and financial risks in a renwal risk model

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper we consider a multivariate risk model with common renewal process, while the logarithmic returns of the insurers investment portfolio, are described by a Levy process…

math.PR2025

Asymptotics for aggregated interdependent multivariate subexponential claims with general investment returns

Zhangting Chen, Dimitrios G. Konstantinides, Charalampos D. Passalidis

This paper investigates asymptotic estimates for the entrance probability of the discounted aggregate claim vector from a multivariate renewal risk model into some rare set. We pro…

math.PR2025

The Bivariate regular variation of randomly weighted sums revisited in the presence of interdependence

Dimitrios G. Konstantinides, Charalampos D. Passalidis

We study the joint distribution of two randomly weighted sums. Inspired by the practical applications, we assume that the main random variables follow the non-standard bivariate re…

math.PR2025

Uniform asymptotics for a multidimensional renewal risk model with multivariate subexponential claims

Dimitrios G. Konstantinides, Jiajun Liu, Charalampos D. Passalidis

In this paper, we study a multidimensional risk model with a common renewal process and in the presence of a constant interest force. The claim sizes are independent and identicall…

math.PR2025

Tail behavior of randomly weighted sums with interdependent summands

Dimitrios G. Konstantinides, Remigijus Leipus, Charalampos D. Passalidis +1

We reconsider a classical, well-studied problem from applied probability. This is the max-sum equivalence of randomly weighted sums, and the originality is because we manage to inc…

math.PR2025

Multivariate strong subexponential distributions: properties and applications

Charalampos D. Passalidis

In this paper we introduce and study the class of multivariate strong and strongly subexponential distributions. Some first properties are verified, as for example a type of multiv…

math.PR2025

Heavy-tailed random vectros: theory and applications

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper we introduce and study several multivariate, heavy-tailed distribution classes, and we explore their closure properties and their applications. We consider the class…

math.PR2024

Uniform asymptotic estimates for ruin probabilities of a multidimensional risk model with cadlag returns and multivariate heavy tailed claims

Dimitrios G. Konstantinides, Charalampos D. Passalidis

We study a multidimensional renewal risk model, with common counting process and cadlag returns. Considering that the claim vectors have common distribution from some multivariate…

math.PR2024

Random vectors in the presence of a single big jump

Dimitrios G. Konstantinides, Charalampos D. Passalidis

The multidimensional distributions with heavy tails attracted recently the attention of several papers on Applied Probability. However, the most of the works of the last decades ar…

math.PR2024

Joint tail of randomly weighted sums under generalized quasi asymptotic independence

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper we revisited the classical problem of max-sum equivalence of randomly weighted sums in two dimensions. In opposite to the most papers in literature, we consider that…

math.PR2024★ 2 cited

Background risk model in presence of heavy tails under dependence

Dimitrios G. Konstantinides, Charalampos D. Passalidis

In this paper, we examine two problems on applied probability, which are directly connected with the dependence in presence of heavy tails. The first problem, is related to max-sum…

math.PR2024

Closure properties in positively decreasing and related distributions under dependence

Dimitrios G. Konstantinides, Charalampos D. Passalidis, Nikolaos E. Porichis

We consider closure properties in the class of positively decreasing distributions. Our results stem from different types of dependence, but each type belongs in the family of asym…

math.PR2024★ 1 cited

Closure properties and heavy tails: random vectors in the presence of dependence

Dimitrios G. Konstantinides, Charalampos D. Passalidis

This paper is organized in three parts closely related to closure properties of heavy-tailed distributions and heavy-tailed random vectors. In the first part we consider two random…

math.PR2024★ 2 cited

A new approach in two-dimensional heavy-tailed distributions

Dimitrios G. Konstantinides, Charalampos D. Passalidis

We consider a new approach in the definition of two-dimensional heavy-tailed distributions. Namely, we introduce the classes of two-dimensional long-tailed, of twodimensional domin…