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I. Urbiha

4 papers hereh-index 453 citations16 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • last author4

Across the 4 of 4 papers where every author was matched, so the position is known.

fields
  • math.CO2
  • math.AG1
  • math.MG1

identity via Semantic Scholar / OpenAlex

activity
20042016
most citedHyperfibonacci Sequences and Polytopic Numbers

5 citations · 10 across the 3 of their papers we have counts for

collaborators

4 papers

math.CO2016★ 5 cited

Hyperfibonacci Sequences and Polytopic Numbers

Ligia Loretta Cristea, Ivica Martinjak, Igor Urbiha

We prove that the difference between the n-th hyperfibonacci number of r-th generation and its two consecutive predecessors is the n-th regular (r−1)-topic number. Using th…

math.CO2015

A New Generalized Cassini Determinant

Ivica Martinjak, Igor Urbiha

In this paper we extend a notion of Cassini determinant to recently introduced hyperfibonacci sequences. We find Q-matrix for the r-th generation hyperfibonacci numbers and pro…

math.MG2006★ 3 cited

Verification and Strengthening of the Atiyah--Sutcliffe Conjectures for Several Types of Configurations

Dragutin Svrtan, Igor Urbiha

In 2001 Sir M. F. Atiyah formulated a conjecture C1 and later with P. Sutcliffe two stronger conjectures C2 and C3. These conjectures, inspired by physics (spin-statistics theorem…

math.AG2004★ 2 cited

Atiyah-Sutcliffe Conjectures for Almost Collinear Configurations and Some New Conjectures for Symmetric Functions

Dragutin Svrtan, Igor Urbiha

In 2001 Sir M. F. Atiyah formulated a conjecture (C1) and later with P. Sutcliffe two stronger conjectures (C2) and (C3). These conjectures, inspired by physics (spin-statistics th…

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