Št. zadetkov: 13
Ni določena
Oznake:
Leto:
2024
Vir:
Repozitorij Univerze na Primorskem (RUP)
Izvirni znanstveni članek
Oznake:
teorija grafov;topološki indeksi;parnost grafovskih invariant;merjeni grafovski parametri;
In this note we collect and state some facts on the parity of some integer-valued graph invariants. In particular, we show that several well-known bond-additive topological indices assume only even values for all connected graphs. Among them are both degreebased and distance-based indices. We also d ...
Leto:
2026
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
tilings;hexagonal lattice;Fibonacci numbers;tribonacci numbers;combinatorics;
In this paper, we explore two types of tilings of a oneycomb
strip and derive some closed-form formulas for the number of
tilings. Furthermore, we obtain some new identities involving tribonacci numbers, Padovan numbers and Narayana’s cow sequence and provide combinatorial proofs for several known ...
Leto:
2024
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
tempered sequence;log-convexity;log-concavity;log-balancedness;Fibonacci numbers;Lucas numbers;concyclic points;
Leto:
2025
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
Lambert W function;Helmberger linear pricing model;semi-exponential models;optimal transfer time;
Mathematical modelling has increasingly shifted towards computational and numerical methods, resulting in less emphasison exactly solvable models and closed-form analytical solutions. This study presents LambertWfunction solutions tomodels of the pricing, storage, and handling of agricultural good ...
Leto:
2026
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
total positivity;totally positive matrix;Toeplitz matrix;Hankel matrix;hyperfibonacci sequence;log-concavity;
Leto:
2019
Vir:
Repozitorij Univerze na Primorskem (RUP)
Izvirni znanstveni članek
Oznake:
Zagreb indices;spectral radius;trees;unicyclic graphs;
Leto:
2025
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
Hararyjev indeks;Wienerjev indeks;topološki indeksi;kemijska teorija grafov;minimizacija produkta indeksov;Wiener index;topological indices;chemical graph theory;
The Harary index and the Wiener index are two well-studied topological indices in chemical graph theory. Quite recently, the graphs attaining the minimum value of the product of the Harary and Wiener indices were characterized in [E. Azjargal, B. Horoldagva, I. Gutman, Minimum of product of Wiener a ...
Leto:
2025
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
teorija grafov;Zagrebški indeks;topološki indeksi;ekstremalne vrednosti grafov;
In this paper, we confirm a conjecture by Furtula and Oz regarding graphs that maximize the second complementary Zagreb index. We demonstrate that this conjecture holds for a broader class of indices, each of which is parameter-dependent, and which we will refer to as the generalized complementary s ...
Leto:
2026
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)
Izvirni znanstveni članek
Oznake:
katastrofalni vzorci okvar;procesorska polja;izguba povezljivosti;Dyckove poti;Motzkinove poti;Catastrophic fault patterns;Dyck path;Motznik path;
Catastrophic fault patterns are failure patterns resulting in the loss of connectivity of a processor array. We provide bijective correspondences between such patterns in one-dimensional processor arrays and lattice paths satisfying certain inertial criteria. In that way, we obtain new results for t ...
Leto:
2026
Vir:
Fakulteta za informacijske študije v Novem mestu (FIŠ)