vol. 31, no. 4 (2011)
A mixed integer nonlinear programming formulation for the problem of fitting positive exponential sums to empirical data
Adalys Alvarez, Hugo Lara
Opuscula Math. 31, no. 4 (2011), 481-499,
http://dx.doi.org/10.7494/OpMath.2011.31.4.481
Operators in divergence form and their Friedrichs and Kreĭn extensions
Yury Arlinskiĭ, Yury Kovalev
Opuscula Math. 31, no. 4 (2011), 501-517,
http://dx.doi.org/10.7494/OpMath.2011.31.4.501
Neighbourhood total domination in graphs
S. Arumugam, C. Sivagnanam
Opuscula Math. 31, no. 4 (2011), 519-531,
http://dx.doi.org/10.7494/OpMath.2011.31.4.519
Recursively arbitrarily vertex-decomposable suns
Olivier Baudon, Frédéric Gilbert, Mariusz Woźniak
Opuscula Math. 31, no. 4 (2011), 533-547,
http://dx.doi.org/10.7494/OpMath.2011.31.4.533
Free probability induced by electric resistance networks on energy Hilbert spaces
Ilwoo Cho, Palle E. T. Jorgensen
Opuscula Math. 31, no. 4 (2011), 549-598,
http://dx.doi.org/10.7494/OpMath.2011.31.4.549
Open trails in digraphs
Sylwia Cichacz, Agnieszka Görlich
Opuscula Math. 31, no. 4 (2011), 599-604,
http://dx.doi.org/10.7494/OpMath.2011.31.4.599
The Fejer-Riesz type result for some weighted Hilbert spaces of analytic functions in the unit disc
Piotr Jakóbczak
Opuscula Math. 31, no. 4 (2011), 605-614,
http://dx.doi.org/10.7494/OpMath.2011.31.4.605
Singular continuous spectrum of half-line Schrödinger operators with point interactions on a sparse set
Vladimir Lotoreichik
Opuscula Math. 31, no. 4 (2011), 615-628,
http://dx.doi.org/10.7494/OpMath.2011.31.4.615
Existence and uniqueness results for fractional differential equations with boundary value conditions
LinLi Lv, JinRong Wang, Wei Wei
Opuscula Math. 31, no. 4 (2011), 629-643,
http://dx.doi.org/10.7494/OpMath.2011.31.4.629
Strengthened Stone-Weierstrass type theorem
Piotr Niemiec
Opuscula Math. 31, no. 4 (2011), 645-650,
http://dx.doi.org/10.7494/OpMath.2011.31.4.645
On some classes of meromorphic functions defined by subordination and superordination
Alina Totoi
Opuscula Math. 31, no. 4 (2011), 651-668,
http://dx.doi.org/10.7494/OpMath.2011.31.4.651
Non symmetric random walk on infinite graph
Marcin J. Zygmunt
Opuscula Math. 31, no. 4 (2011), 669-674,
http://dx.doi.org/10.7494/OpMath.2011.31.4.669