Add to ORKGIn this paper, one studies the concavity of some functions that can be written as powers of linear combinations of powers of some concave functions
We prove that G(x,y)=|∫yxf(t)dt| is multiplicatively concave on [a,b]×[a,b] if f:[a,b]...
AbstractWe show that an involution T on some class of functions on Rn, which reverses order (meaning...
Several different classes of copulas are examined and relations among them are studied in details
In this paper, one studies the concavity of some functions that can be written as powers of linear c...
In this article, we introduce a class of concave analytic functions SnC0(?) defined by S?l?gean diff...
Using a natural representation of a $1/s$-concave function on $\mathbb{R}^d$ as a convex set in $\ma...
In this short note, the convexity and concavity of two functions related to the polygamma functions ...
26 pages, 1 appendixWe introduce a new problem on the elementary symmetric polynomials $\sigma_k$, s...
AbstractWe supply new proofs for two important properties of the matrix-concave function F(A) = (K′A...
We obtain new concavity results, up to a suitable transformation, for a class of quasi-linear equati...
A representation result is provided for concave Schur concave functions on L∞(Ω). In particular, it ...
In this paper five new classes of generalized-concave functions are introduced and studied. In parti...
We consider functions that map the open unit disc conformally onto the complement of a bounded conve...
The origins of the notion of quasi-concave function are considered, with special interest in some wo...
Murota et al. have recently developed a theory of discrete convex analysis which concerns M-convex f...
We prove that G(x,y)=|∫yxf(t)dt| is multiplicatively concave on [a,b]×[a,b] if f:[a,b]...
AbstractWe show that an involution T on some class of functions on Rn, which reverses order (meaning...
Several different classes of copulas are examined and relations among them are studied in details
In this paper, one studies the concavity of some functions that can be written as powers of linear c...
In this article, we introduce a class of concave analytic functions SnC0(?) defined by S?l?gean diff...
Using a natural representation of a $1/s$-concave function on $\mathbb{R}^d$ as a convex set in $\ma...
In this short note, the convexity and concavity of two functions related to the polygamma functions ...
26 pages, 1 appendixWe introduce a new problem on the elementary symmetric polynomials $\sigma_k$, s...
AbstractWe supply new proofs for two important properties of the matrix-concave function F(A) = (K′A...
We obtain new concavity results, up to a suitable transformation, for a class of quasi-linear equati...
A representation result is provided for concave Schur concave functions on L∞(Ω). In particular, it ...
In this paper five new classes of generalized-concave functions are introduced and studied. In parti...
We consider functions that map the open unit disc conformally onto the complement of a bounded conve...
The origins of the notion of quasi-concave function are considered, with special interest in some wo...
Murota et al. have recently developed a theory of discrete convex analysis which concerns M-convex f...
We prove that G(x,y)=|∫yxf(t)dt| is multiplicatively concave on [a,b]×[a,b] if f:[a,b]...
AbstractWe show that an involution T on some class of functions on Rn, which reverses order (meaning...
Several different classes of copulas are examined and relations among them are studied in details