Results 81 to 90 of about 2,997,678 (239)

Lollipop and Lariat Symmetric Functions [PDF]

SIAM Journal on Discrete Mathematics, 2018
We compute an explicit $e$-positive formula for the chromatic symmetric function of a lollipop graph, $L_{m,n}$. From here we deduce that there exist countably infinite distinct $e$-positive, and hence Schur-positive, bases of the algebra of symmetric functions whose generators are chromatic symmetric functions. Finally, we resolve 6 conjectures on the
Samantha Dahlberg, Stephanie van Willigenburg   +1 more
openaire   +3 more sources

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Toeplitz and Hankel Determinants for Certain Subclasses Associated with Sakaguchi Type Functions

Mathematical and Computational Applications
In this work, we establish bounds for Hermitian Toeplitz determinants of orders two and three for distinct subclasses of symmetric starlike functions associated with balloon-, limaçon-, and bean-shaped domains.
Mohammed Ali Alamri, Adriana Catas, Bushra Kanwal, Arooj Iman, Fethiye Müge Sakar, Saqib Hussain   +5 more
doaj   +1 more source

Generating Functions of the Products of Bivariate Complex Fibonacci Polynomials with Gaussian Numbers and Polynomials

Discussiones Mathematicae - General Algebra and Applications, 2020
In this paper, we define and study the bivariate complex Fibonacci and Lucas polynomials. We introduce a operator in order to derive some new symmetric properties of bivariate complex Fibonacci and bivariate complex Lucas polynomials, and give the ...
Boughaba Souhila, Boussayoud Ali, Saba Nabiha   +2 more
doaj   +1 more source

Comparison theorems for symmetric functions of characteristic roots

, 1961
Several theorems are proved that give necessary and sufficient conditions for A-B to be positive semidefinite Hermitian. The conditions are in terms of the comparison of elementar y symmetric functions of the charactelistlc roots of A+X and B+X as X ...
Marcus, Marvin
core   +1 more source

Upper bound on the characters of the symmetric groups for balanced Young diagrams and a generalized Frobenius formula [PDF]

, 2008
We study asymptotics of an irreducible representation of the symmetric group Sn corresponding to a balanced Young diagram λ (a Young diagram with at most View the MathML source rows and columns for some fixed constant C) in the limit as n tends to ...
Rattan, Amarpreet, Śniady, Piotr, Sniady, P.   +2 more
core   +1 more source

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

SOME TYPICAL PROPERTIES OF SYMMETRICALLY CONTINUOUS FUNCTIONS, SYMMETRIC FUNCTIONS AND CONTINUOUS FUNCTIONS [PDF]

Real Analysis Exchange, 1995
The existence of a bounded measurable (periodic) symmetrically continuous function and a bounded measurable symmetric function on an interval \([a,b]\) which are discontinuous at points of a set of power \(c\) was proved by D. Preiss and T.-C. Tran, respectively. It is used to show, in a straightforward way, that the functions with these properties are
openaire   +3 more sources

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

FEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer, Pawel Rubach, Zbigniew Dauter, Wojciech Dec, Dariusz Brzezinski, Marta Kulik, Wladek Minor, Mariusz Jaskolski   +7 more
wiley   +1 more source

Regular symmetric arrays for non-symmetric functions [PDF]

ISCAS'99. Proceedings of the 1999 IEEE International Symposium on Circuits and Systems VLSI (Cat. No.99CH36349), 2003
A new class of non-totally symmetric functions which can be represented as simple regular symmetric arrays without redundancy is identified. Regular circuits are becoming crucially important for deep submicron technologies, which needs new layout approaches to fully utilized their potential.
openaire   +2 more sources