Problems for combinatorial numbers satisfying a class of triangular arrays
Numbers satisfying a class of triangular arrays, defined by a bivariate first-order linear difference equation with linear coefficients, include a wide range of combinatorial numbers: binomial coefficients, Morgan numbers, Stirling numbers of the first and the second types, non-central Stirling numb...
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| Published in | Lietuvos matematikos rinkinys Vol. 64; no. B; pp. 16 - 22 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Vilniaus universiteto leidykla / Vilnius University Press
20.11.2023
Vilnius University Press |
| Subjects | |
| Online Access | Get full text |
| ISSN | 0132-2818 2335-898X |
| DOI | 10.15388/LMR.2023.33577 |
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| Abstract | Numbers satisfying a class of triangular arrays, defined by a bivariate first-order linear difference equation with linear coefficients, include a wide range of combinatorial numbers: binomial coefficients, Morgan numbers, Stirling numbers of the first and the second types, non-central Stirling numbers, Eulerian numbers, Lah numbers, and their generalizations. In this work, we derive the general analytic expression of the numbers satisfying a class of triangular arrays and propose problems (both teaching and unsolved ones) for undergraduates studying probability theory and analytical combinatorics subjects in the study programs of the fields of mathematics and computer science. Some of the unsolved challenges can also be used as the basis for a thesis. |
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| AbstractList | Numbers satisfying a class of triangular arrays, defined by a bivariate first-order linear difference equation with linear coefficients, include a wide range of combinatorial numbers: binomial coefficients, Morgan numbers, Stirling numbers of the first and the second types, non-central Stirling numbers, Eulerian numbers, Lah numbers, and their generalizations. In this work, we derive the general analytic expression of the numbers satisfying a class of triangular arrays and propose problems (both teaching and unsolved ones) for undergraduates studying probability theory and analytical combinatorics subjects in the study programs of the fields of mathematics and computer science. Some of the unsolved challenges can also be used as the basis for a thesis. Numbers satisfying a class of triangular arrays, defined by a bivariate first-order linear difference equation with linear coefficients, include a wide range of combinatorial numbers: binomial coefficients, Morgan numbers, Stirling numbers of the first and the second types, non-central Stirling numbers, Eulerian numbers, Lah numbers, and their generalizations. In this work, we derive the general analytic expression of the numbers satisfying a class of triangular arrays and propose problems (both teaching and unsolved ones) for undergraduates studying probability theory and analytical combinatorics subjects in the study programs of the fields of mathematics and computer science. Some of the unsolved challenges can also be used as the basis for a thesis. Trikampių masyvų klasės skaičiai, apibrėžiami pirmosios eilės tiesine dviejų kintamųjų skirtumine lygtimi su tiesiniais koeficientais, apima platų kombinatorinių skaičių šeimų spektrą: binominius koeficientus, Morgano skaičius, Stirlingo pirmosios ir antrosios rūšių skaičius, necentrinius Stirlingo skaičius, Eulerio skaičius, Laho skaičius, ir jų apibendrinimus. Darbe yra išvedama trikampių masyvų klasės skaičių bendroji analizinė išraiška, bei siūlomos problemos (kaip lavinančios atitinkamą įrodymų techniką ir matematinį aparatą, taip ir dar neišspręstos) studijuojantiems matematikos ir informatikos krypčių studijų programose esančius tikimybių teorijos ir analizinės kombinatorikos dalykus bakalaurams. Kai kurie dar neišspręsti uždaviniai gali būti panaudoti ir kaip baigiamųjų darbų pagrindai. |
| Author | Belovas, Igoris |
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| Keywords | asymptotic normality asimptotinis normalumas ribinės teoremos combinatorial numbers limit theorems kombinatoriniai skaičiai |
| Language | English |
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| Title | Problems for combinatorial numbers satisfying a class of triangular arrays |
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