Ilmonen, Pauliina On meet hypermatrices and their eigenvalues. (English) Zbl 1362.11037 Linear Multilinear Algebra 64, No. 5, 842-855 (2016). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 06A12 15A18 15A69 15B36 PDFBibTeX XMLCite \textit{P. Ilmonen}, Linear Multilinear Algebra 64, No. 5, 842--855 (2016; Zbl 1362.11037) Full Text: DOI
Minculete, Nicuşor On certain inequalities about arithmetic functions which use the exponential divisors. (English) Zbl 1272.11012 Int. J. Number Theory 8, No. 6, 1527-1535 (2012). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 PDFBibTeX XMLCite \textit{N. Minculete}, Int. J. Number Theory 8, No. 6, 1527--1535 (2012; Zbl 1272.11012) Full Text: DOI
Bege, Antal Hadamard product of GCUD matrices. (English) Zbl 1271.11031 Acta Univ. Sapientiae, Math. 3, No. 2, 144-151 (2011). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 11A25 PDFBibTeX XMLCite \textit{A. Bege}, Acta Univ. Sapientiae, Math. 3, No. 2, 144--151 (2011; Zbl 1271.11031) Full Text: EMIS
Müller, Tom Is the sequence of the sum of digits of prime numbers bounded? (Ist die Folge der Primzahl-Quersummen beschränkt?) (German) Zbl 1302.11003 Elem. Math. 66, No. 4, 146-154 (2011). Reviewer: József Sándor (Cluj-Napoca) MSC: 11A63 11A41 PDFBibTeX XMLCite \textit{T. Müller}, Elem. Math. 66, No. 4, 146--154 (2011; Zbl 1302.11003) Full Text: DOI
Bartha, Zsolt; Bege, Antal Hyperperfect numbers and generalizations. (English) Zbl 1239.11006 Pop, Horia F. (ed.) et al., 8th joint conference on mathematics and computer science, MaCS 2010, Komárno, Slovakia, July 14–17, 2010. Selected papers. Győr: NOVADAT (ISBN 978-963-9056-38-1/pbk). 15-22 (2011). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11Y70 PDFBibTeX XMLCite \textit{Z. Bartha} and \textit{A. Bege}, in: 8th joint conference on mathematics and computer science, MaCS 2010, Komárno, Slovakia, July 14--17, 2010. Selected papers. Győr: NOVADAT. 15--22 (2011; Zbl 1239.11006)
Luca, Florian; te Riele, Herman J. J. \(\varphi\) and \(\sigma\): from Euler to Erdős. (English) Zbl 1294.11006 Nieuw Arch. Wiskd. (5) 12, No. 1, 31-36 (2011). Reviewer: József Sándor (Cluj-Napoca) MSC: 11A25 11-03 01A50 01A55 01A60 PDFBibTeX XMLCite \textit{F. Luca} and \textit{H. J. J. te Riele}, Nieuw Arch. Wiskd. (5) 12, No. 1, 31--36 (2011; Zbl 1294.11006) Full Text: Link
Bege, Antal Generalized GCD matrices. (English) Zbl 1246.11077 Acta Univ. Sapientiae, Math. 2, No. 2, 160-167 (2010). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 11A25 15B36 PDFBibTeX XMLCite \textit{A. Bege}, Acta Univ. Sapientiae, Math. 2, No. 2, 160--167 (2010; Zbl 1246.11077) Full Text: arXiv
El-Kassar, A. N.; Habre, S. S.; Awad, Y. A. Greatest common divisor and least common multiple matrices on factor closed sets in a principal ideal domain. (English) Zbl 1239.11030 J. Math. Stat. 5, No. 4, 342-347 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 11A25 PDFBibTeX XMLCite \textit{A. N. El-Kassar} et al., J. Math. Stat. 5, No. 4, 342--347 (2009; Zbl 1239.11030) Full Text: Link
Büyükköse, S. The reciprocal Mersenne meet matrices on posets. (English) Zbl 1197.11034 Int. J. Contemp. Math. Sci. 4, No. 1-4, 41-46 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 PDFBibTeX XMLCite \textit{S. Büyükköse}, Int. J. Contemp. Math. Sci. 4, No. 1--4, 41--46 (2009; Zbl 1197.11034) Full Text: Link
Bege, Antal; Fogarasi, Kinga Generalized perfect numbers. (English) Zbl 1192.11003 Acta Univ. Sapientiae, Math. 1, No. 1, 73-82 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11Y70 PDFBibTeX XMLCite \textit{A. Bege} and \textit{K. Fogarasi}, Acta Univ. Sapientiae, Math. 1, No. 1, 73--82 (2009; Zbl 1192.11003) Full Text: arXiv EuDML
Bege, Antal Hadamard product of GCD matrices. (English) Zbl 1192.11016 Acta Univ. Sapientiae, Math. 1, No. 1, 43-49 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 11A25 15B36 PDFBibTeX XMLCite \textit{A. Bege}, Acta Univ. Sapientiae, Math. 1, No. 1, 43--49 (2009; Zbl 1192.11016) Full Text: EuDML
Luca, Florian; Varona, Juan Luis Multiperfect numbers on lines of the Pascal triangle. (English) Zbl 1171.11002 J. Number Theory 129, No. 5, 1136-1148 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11B65 PDFBibTeX XMLCite \textit{F. Luca} and \textit{J. L. Varona}, J. Number Theory 129, No. 5, 1136--1148 (2009; Zbl 1171.11002) Full Text: DOI
Zhou, Weiyi; Zhu, Long On \(k\)-imperfect numbers. (English) Zbl 1175.11004 Integers 9, No. 1, Article A01, 1-8 (2009). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 PDFBibTeX XMLCite \textit{W. Zhou} and \textit{L. Zhu}, Integers 9, No. 1, Article A01, 1--8 (2009; Zbl 1175.11004) Full Text: DOI EuDML Link
Büyükköse, S. The Fermat meet and reciprocal Fermat meet matrices on posets. (English) Zbl 1197.11033 Int. J. Contemp. Math. Sci. 3, No. 33-36, 1739-1744 (2008). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 PDFBibTeX XMLCite \textit{S. Büyükköse}, Int. J. Contemp. Math. Sci. 3, No. 33--36, 1739--1744 (2008; Zbl 1197.11033) Full Text: Link
Altinişik, Ercan On the matrix norms of a GCD related matrix. (English) Zbl 1210.11036 Math. Inequal. Appl. 11, No. 4, 635-646 (2008). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 15A60 11A25 PDFBibTeX XMLCite \textit{E. Altinişik}, Math. Inequal. Appl. 11, No. 4, 635--646 (2008; Zbl 1210.11036) Full Text: DOI
Hong, Shaofang Infinite divisibility of Smith matrices. (English) Zbl 1163.11023 Acta Arith. 134, No. 4, 381-386 (2008). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 11A25 PDFBibTeX XMLCite \textit{S. Hong}, Acta Arith. 134, No. 4, 381--386 (2008; Zbl 1163.11023) Full Text: DOI arXiv
Hong, Shaofang Asymptotic behavior of largest eigenvalue of matrices associated with completely even functions (mod \(r\)). (English) Zbl 1172.11008 Asian-Eur. J. Math. 1, No. 2, 225-235 (2008). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15A18 15B36 PDFBibTeX XMLCite \textit{S. Hong}, Asian-Eur. J. Math. 1, No. 2, 225--235 (2008; Zbl 1172.11008) Full Text: DOI
Hong, Shaofang Divisibility properties of power GCD matrices and power LCM matrices. (English) Zbl 1137.11017 Linear Algebra Appl. 428, No. 4, 1001-1008 (2008). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 PDFBibTeX XMLCite \textit{S. Hong}, Linear Algebra Appl. 428, No. 4, 1001--1008 (2008; Zbl 1137.11017) Full Text: DOI
Goto, Takeshi Upper bounds for unitary perfect numbers and unitary harmonic numbers. (English) Zbl 1141.11006 Rocky Mt. J. Math. 37, No. 5, 1557-1576 (2007). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11Y70 PDFBibTeX XMLCite \textit{T. Goto}, Rocky Mt. J. Math. 37, No. 5, 1557--1576 (2007; Zbl 1141.11006) Full Text: DOI Euclid
Büyükköse, Şerife The Mersenne meet matrices on posets. (English) Zbl 1210.11037 Int. J. Contemp. Math. Sci. 1, No. 9-12, 469-474 (2006). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 PDFBibTeX XMLCite \textit{Ş. Büyükköse}, Int. J. Contemp. Math. Sci. 1, No. 9--12, 469--474 (2006; Zbl 1210.11037) Full Text: DOI Link
Siva Rama Prasad, V.; Dixit, Uma Inequalities related to the unitary analogue of Lehmer problem. (English) Zbl 1137.11008 JIPAM, J. Inequal. Pure Appl. Math. 7, No. 4, Paper No. 142, 4 p. (2006). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11A05 PDFBibTeX XMLCite \textit{V. Siva Rama Prasad} and \textit{U. Dixit}, JIPAM, J. Inequal. Pure Appl. Math. 7, No. 4, Paper No. 142, 4 p. (2006; Zbl 1137.11008) Full Text: EuDML EMIS
Le Anh Vinh; Dang Phuong Dung A note on multiplicatively e-perfect numbers. (English) Zbl 1137.11006 JIPAM, J. Inequal. Pure Appl. Math. 7, No. 3, Paper No. 99, 3 p. (2006). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 11A05 PDFBibTeX XMLCite \textit{Le Anh Vinh} and \textit{Dang Phuong Dung}, JIPAM, J. Inequal. Pure Appl. Math. 7, No. 3, Paper No. 99, 3 p. (2006; Zbl 1137.11006) Full Text: EuDML EMIS
Yin, Youzhan; Hong, Shaofang; Zhou, Xingwang Notes on primitive singular numbers. (English) Zbl 1140.11015 J. Sichuan Univ., Nat. Sci. Ed. 43, No. 2, 281-284 (2006). Reviewer: Pentti Haukkanen (Tampere) MSC: 11C20 15B36 11A25 PDFBibTeX XMLCite \textit{Y. Yin} et al., J. Sichuan Univ., Nat. Sci. Ed. 43, No. 2, 281--284 (2006; Zbl 1140.11015)
Sándor, József; Mitrinović, Dragoslav S.; Crstici, Borislav Handbook of number theory. I. 2nd printing. (English) Zbl 1151.11300 Dordrecht: Springer (ISBN 1-4020-4215-9/hbk; 1-4020-3658-2/ebook). xxvi, 622 p. (2006). MSC: 11-00 11-01 11-02 11A41 11A07 11L03 11N05 11N13 11N37 PDFBibTeX XMLCite \textit{J. Sándor} et al., Handbook of number theory. I. 2nd printing. Dordrecht: Springer (2006; Zbl 1151.11300) Full Text: DOI
Ramamoorthi, P.; Subrahmanyasastri, V. V. On e-b multiperfect numbers. (English) Zbl 1091.11005 Ranchi Univ. Math. J. 32(2001), 1-11 (2004). Reviewer: Pentti Haukkanen (Tampere) MSC: 11A25 PDFBibTeX XMLCite \textit{P. Ramamoorthi} and \textit{V. V. Subrahmanyasastri}, Ranchi Univ. Math. J. 32, 1--11 (2004; Zbl 1091.11005)