Sharma, Poonam; Mishra, Omendra Harmonic mappings and its directional convexity. (English) Zbl 1513.31001 Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 677-690 (2021). MSC: 31A05 30C45 30C55 PDFBibTeX XMLCite \textit{P. Sharma} and \textit{O. Mishra}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 677--690 (2021; Zbl 1513.31001) Full Text: DOI
Arjomandinia, Parviz; Aghalary, Rasoul Strong subordination and superordination with sandwich-type theorems using integral operators. (English) Zbl 1513.30038 Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 667-675 (2021). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{P. Arjomandinia} and \textit{R. Aghalary}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 667--675 (2021; Zbl 1513.30038) Full Text: DOI
Wanas, Abbas Kareem; Páll-Szabó, Ágnes Orsolya Coefficient bounds for new subclasses of analytic and \(m\)-fold symmetric bi-univalent functions. (English) Zbl 1513.30104 Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 659-666 (2021). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{A. K. Wanas} and \textit{Á. O. Páll-Szabó}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 4, 659--666 (2021; Zbl 1513.30104) Full Text: DOI
Sarkar, Arindam Equipolar meromorphic functions sharing a set. (English) Zbl 1513.30163 Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 507-520 (2021). MSC: 30D35 PDFBibTeX XMLCite \textit{A. Sarkar}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 507--520 (2021; Zbl 1513.30163) Full Text: DOI
Motamednezhad, Ahmad; Salehian, Safa Certain class of \(m\)-fold functions by applying Faber polynomial expansions. (English) Zbl 1513.30064 Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 491-505 (2021). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{A. Motamednezhad} and \textit{S. Salehian}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 491--505 (2021; Zbl 1513.30064) Full Text: DOI
Grigoriciuc, Eduard Ştefan On some classes of holomorphic functions whose derivatives have positive real part. (English) Zbl 1513.30051 Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 479-490 (2021). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{E. Ş. Grigoriciuc}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 479--490 (2021; Zbl 1513.30051) Full Text: DOI
Ibrahim, Rabha W.; Wazi, Mayada T.; Al-Saidi, Nadia Geometric properties of mixed operator involving Ruscheweyh derivative and Sălăgean operator. (English) Zbl 1513.30055 Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 471-477 (2021). MSC: 30C45 PDFBibTeX XMLCite \textit{R. W. Ibrahim} et al., Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 471--477 (2021; Zbl 1513.30055) Full Text: DOI
Anand, Swati; Kumar, Sushil; Ravichandran, V. Differential subordination for Janowski functions with positive real part. (English) Zbl 1513.30037 Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 457-470 (2021). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Anand} et al., Stud. Univ. Babeș-Bolyai, Math. 66, No. 3, 457--470 (2021; Zbl 1513.30037) Full Text: DOI arXiv
Al-Hawary, Tariq Sufficient conditions for analytic functions defined by Frasin differential operator. (English) Zbl 1513.30030 Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 353-359 (2021). MSC: 30C45 PDFBibTeX XMLCite \textit{T. Al-Hawary}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 353--359 (2021; Zbl 1513.30030) Full Text: DOI
Bărbatu, Camelia; Breaz, Daniel Classes of an univalent integral operator. (English) Zbl 1513.30041 Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 339-351 (2021). MSC: 30C45 PDFBibTeX XMLCite \textit{C. Bărbatu} and \textit{D. Breaz}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 339--351 (2021; Zbl 1513.30041) Full Text: DOI
Anastassiou, George A. Complex left Caputo fractional inequalities. (English) Zbl 1513.26025 Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 329-338 (2021). MSC: 26D10 26A33 26D15 30A10 PDFBibTeX XMLCite \textit{G. A. Anastassiou}, Stud. Univ. Babeș-Bolyai, Math. 66, No. 2, 329--338 (2021; Zbl 1513.26025) Full Text: DOI
Cotîrlă, Luminiţa-Ioana; Cătaş, Adriana Differential sandwich theorem for certain class of analytic functions associated with an integral operator. (English) Zbl 1513.30043 Stud. Univ. Babeș-Bolyai, Math. 65, No. 4, 487-494 (2020). MSC: 30C45 PDFBibTeX XMLCite \textit{L.-I. Cotîrlă} and \textit{A. Cătaş}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 4, 487--494 (2020; Zbl 1513.30043) Full Text: DOI
Shergill, Kuldeep Kaur; Billing, Sukhwinder Singh Meromorphic close-to-convex functions satisfying a differential inequality. (English) Zbl 1513.30090 Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 373-378 (2020). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{K. K. Shergill} and \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 373--378 (2020; Zbl 1513.30090) Full Text: DOI
Sălăgean, Grigore Ştefan; Páll-Szabó, Ágnes Orsolya On a certain class of harmonic functions and the generalized Bernardi-Libera-Livingston integral operator. (English) Zbl 1513.30082 Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 365-371 (2020). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{G. Ş. Sălăgean} and \textit{Á. O. Páll-Szabó}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 365--371 (2020; Zbl 1513.30082) Full Text: DOI
Kargar, Rahim Notes on the norm of pre-Schwarzian derivatives of certain analytic functions. (English) Zbl 1513.30056 Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 357-363 (2020). MSC: 30C45 PDFBibTeX XMLCite \textit{R. Kargar}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 357--363 (2020; Zbl 1513.30056) Full Text: DOI arXiv
Irmak, Hüseyin Various results in relation with the hypergeometric equations and the hypergeometric functions in the complex plane. (English) Zbl 1513.30003 Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 345-356 (2020). MSC: 30A10 34A40 33C05 33C20 33C45 30C15 33D15 37K20 PDFBibTeX XMLCite \textit{H. Irmak}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 345--356 (2020; Zbl 1513.30003) Full Text: DOI
Tripathi, Dinesh A refinement of an inequality due to Ankeny and Rivlin. (English) Zbl 07577375 Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 325-332 (2020). MSC: 30C10 26D05 PDFBibTeX XMLCite \textit{D. Tripathi}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 3, 325--332 (2020; Zbl 07577375) Full Text: DOI
Wani, Lateef Ahmad; Anbhu, Swaminathan Inclusion properties of hypergeometric type functions and related integral transforms. (English) Zbl 1513.30105 Stud. Univ. Babeș-Bolyai, Math. 65, No. 2, 211-227 (2020). MSC: 30C45 33C45 PDFBibTeX XMLCite \textit{L. A. Wani} and \textit{S. Anbhu}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 2, 211--227 (2020; Zbl 1513.30105) Full Text: DOI
Mahmood, Shahid; Mustafa, Saima; Khan, Imran Application of Ruscheweyh \(q\)-differential operator to analytic functions of reciprocal order. (English) Zbl 1513.30062 Stud. Univ. Babeș-Bolyai, Math. 65, No. 2, 199-210 (2020). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{S. Mahmood} et al., Stud. Univ. Babeș-Bolyai, Math. 65, No. 2, 199--210 (2020; Zbl 1513.30062) Full Text: DOI
Frasin, Basem Aref; Al-Hawary, Tariq; Yousef, Feras Some properties of a linear operator involving generalized Mittag-Leffler function. (English) Zbl 1513.33050 Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 67-75 (2020). MSC: 33E12 30C45 PDFBibTeX XMLCite \textit{B. A. Frasin} et al., Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 67--75 (2020; Zbl 1513.33050) Full Text: DOI
Adegani, Ebrahim Analouei; Motamednezhad, Ahmad; Bulut, Serap Coefficient estimates for a subclass of meromorphic bi-univalent functions defined by subordination. (English) Zbl 1513.30026 Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 57-66 (2020). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{E. A. Adegani} et al., Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 57--66 (2020; Zbl 1513.30026) Full Text: DOI
Porwal, Saurabh; Kumar, Shivam New subclasses of bi-univalent functions defined by multiplier transformation. (English) Zbl 1513.30077 Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 47-55 (2020). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Porwal} and \textit{S. Kumar}, Stud. Univ. Babeș-Bolyai, Math. 65, No. 1, 47--55 (2020; Zbl 1513.30077) Full Text: DOI
Ahamed, Molla Basir On the periodicity of meromorphic functions when sharing two sets IM. (English) Zbl 1513.30130 Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 497-510 (2019). MSC: 30D35 PDFBibTeX XMLCite \textit{M. B. Ahamed}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 497--510 (2019; Zbl 1513.30130) Full Text: DOI
Oros, Georgia Irina; Oros, Gheorghe Differential superordination for harmonic complex-valued functions. (English) Zbl 1513.30115 Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 487-496 (2019). MSC: 30C80 34A40 PDFBibTeX XMLCite \textit{G. I. Oros} and \textit{G. Oros}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 487--496 (2019; Zbl 1513.30115) Full Text: DOI
Páll-Szabó, Ágnes Orsolya Differential subordinations and superordinations for analytic functions defined by Sălăgean integro-differential operator. (English) Zbl 1513.30074 Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 477-486 (2019). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{Á. O. Páll-Szabó}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 477--486 (2019; Zbl 1513.30074) Full Text: DOI
Eker, Sevtap Sümer; Şeker, Bilal On subclasses of bi-convex functions defined by Tremblay fractional derivative operator. (English) Zbl 1513.30047 Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 467-476 (2019). MSC: 30C45 30C50 30C80 PDFBibTeX XMLCite \textit{S. S. Eker} and \textit{B. Şeker}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 4, 467--476 (2019; Zbl 1513.30047) Full Text: DOI
Banerjee, Abhijit; Majumder, Sujoy Some results on a question of Li, Yi and Li. (English) Zbl 1513.30134 Stud. Univ. Babeș-Bolyai, Math. 64, No. 3, 367-385 (2019). MSC: 30D35 PDFBibTeX XMLCite \textit{A. Banerjee} and \textit{S. Majumder}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 3, 367--385 (2019; Zbl 1513.30134) Full Text: DOI
Nunokawa, Mamoru; Sokół, Janusz; Tuneski, Nikola; Jolevska-Tuneska, Biljana On multivalent starlike functions. (English) Zbl 1438.30074 Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 91-102 (2019). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{M. Nunokawa} et al., Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 91--102 (2019; Zbl 1438.30074) Full Text: DOI
Porwal, Saurabh; Singh, Surya Pratap Some properties of a new subclass of analytic univalent functions defined by multiplier transformation. (English) Zbl 1438.30089 Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 81-90 (2019). MSC: 30C45 30C50 30C55 PDFBibTeX XMLCite \textit{S. Porwal} and \textit{S. P. Singh}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 81--90 (2019; Zbl 1438.30089) Full Text: DOI
Srivastava, Rekha; Zayed, Hanaa M. Subclasses of analytic functions of complex order defined by \(q\)-derivative operator. (English) Zbl 1438.30099 Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 71-80 (2019). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{R. Srivastava} and \textit{H. M. Zayed}, Stud. Univ. Babeș-Bolyai, Math. 64, No. 1, 71--80 (2019; Zbl 1438.30099) Full Text: DOI
Szatmari, Eszter Differential subordinations obtained by using a fractional operator. (English) Zbl 1438.30100 Stud. Univ. Babeș-Bolyai, Math. 63, No. 4, 475-482 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{E. Szatmari}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 4, 475--482 (2018; Zbl 1438.30100) Full Text: DOI
Srivastava, Hari Mohan; Khan, Shahid; Ahmad, Qazi Zahoor; Khan, Nazar; Hussain, Saqib The Faber polynomial expansion method and its application to the general coefficient problem for some subclasses of bi-univalent functions associated with a certain \(q\)-integral operator. (English) Zbl 1438.05021 Stud. Univ. Babeș-Bolyai, Math. 63, No. 4, 419-436 (2018). MSC: 05A30 30C45 11B65 47B38 PDFBibTeX XMLCite \textit{H. M. Srivastava} et al., Stud. Univ. Babeș-Bolyai, Math. 63, No. 4, 419--436 (2018; Zbl 1438.05021) Full Text: DOI
Arora, Vibhuti; Sahoo, Swadesh Kumar Meromorphic functions with small Schwarzian derivative. (English) Zbl 1438.30136 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 355-370 (2018). MSC: 30D30 30C45 30C55 34M05 PDFBibTeX XMLCite \textit{V. Arora} and \textit{S. K. Sahoo}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 355--370 (2018; Zbl 1438.30136) Full Text: DOI arXiv
Brar, Richa; Billing, Sukhwinder Singh Certain sufficient conditions for starlikeness and convexity using a multiplier transformation. (English) Zbl 1438.30123 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 341-354 (2018). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{R. Brar} and \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 341--354 (2018; Zbl 1438.30123) Full Text: DOI
Panigrahi, Trailokya; Raina, Ravinder Krishna Fekete-Szegö problems for generalized Sakaguchi type functions associated with quasi-subordination. (English) Zbl 1438.30082 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 329-340 (2018). MSC: 30C45 33C50 30D60 PDFBibTeX XMLCite \textit{T. Panigrahi} and \textit{R. K. Raina}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 329--340 (2018; Zbl 1438.30082) Full Text: DOI
Porwal, Saurabh; Kumar, Kaushal Fekete-Szegö problem for a class of analytic functions defined by Carlson-Shaffer operator. (English) Zbl 1438.30087 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 323-328 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Porwal} and \textit{K. Kumar}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 323--328 (2018; Zbl 1438.30087) Full Text: DOI
Mostafa, Adela O.; Aouf, Mohamed K. Subclasses of \(p\)-valent meromorphic functions involving certain operator. (English) Zbl 1438.30066 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 313-322 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{A. O. Mostafa} and \textit{M. K. Aouf}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 313--322 (2018; Zbl 1438.30066) Full Text: DOI
Ahuja, Om P.; Kumar, Sushil; Ravichandran, V. Applications of first order differential subordination for functions with positive real part. (English) Zbl 1438.30021 Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 303-311 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{O. P. Ahuja} et al., Stud. Univ. Babeș-Bolyai, Math. 63, No. 3, 303--311 (2018; Zbl 1438.30021) Full Text: DOI
Chakraborty, Bikash Power of a meromorphic function that share a set with its derivative. (English) Zbl 1438.30139 Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 213-224 (2018). MSC: 30D35 PDFBibTeX XMLCite \textit{B. Chakraborty}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 213--224 (2018; Zbl 1438.30139) Full Text: DOI
Al-Hawary, Tariq; Frasin, Basem Aref Coefficient estimates and subordination properties for certain classes of analytic functions of reciprocal order. (English) Zbl 1438.30026 Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 203-212 (2018). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{T. Al-Hawary} and \textit{B. A. Frasin}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 203--212 (2018; Zbl 1438.30026) Full Text: DOI
Aghalary, Rasoul; Mohammadian, Ali Radii of harmonic mapping with fixed second coefficients in the plane. (English) Zbl 1438.30019 Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 189-201 (2018). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{R. Aghalary} and \textit{A. Mohammadian}, Stud. Univ. Babeș-Bolyai, Math. 63, No. 2, 189--201 (2018; Zbl 1438.30019) Full Text: DOI
Magesh, Nanjundan; Porwal, Saurabh; Abirami, Chinnaswamy Starlike and convex properties for Poisson distribution series. (English) Zbl 1438.30063 Stud. Univ. Babeș-Bolyai, Math. 63, No. 1, 71-78 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{N. Magesh} et al., Stud. Univ. Babeș-Bolyai, Math. 63, No. 1, 71--78 (2018; Zbl 1438.30063) Full Text: DOI
Joshi, Santosh B.; Joshi, Sayali S.; Pawar, Haridas Applications of generalized fractional integral operator to unified subclass of prestarlike functions with negative coefficients. (English) Zbl 1438.30056 Stud. Univ. Babeș-Bolyai, Math. 63, No. 1, 59-69 (2018). MSC: 30C45 PDFBibTeX XMLCite \textit{S. B. Joshi} et al., Stud. Univ. Babeș-Bolyai, Math. 63, No. 1, 59--69 (2018; Zbl 1438.30056) Full Text: DOI
Arjomandinia, Parviz; Rahimpoor, Hossein A certain subclass of analytic functions associated with the quasi-subordination. (English) Zbl 1438.30032 Stud. Univ. Babeș-Bolyai, Math. 62, No. 4, 469-478 (2017). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{P. Arjomandinia} and \textit{H. Rahimpoor}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 4, 469--478 (2017; Zbl 1438.30032) Full Text: DOI
Páll-Szabó, Ágnes Orsolya Modified Hadamard product properties of certain class of analytic functions with varying arguments defined by Sălăgean and Ruscheweyh derivative. (English) Zbl 1438.30078 Stud. Univ. Babeș-Bolyai, Math. 62, No. 4, 461-468 (2017). MSC: 30C45 PDFBibTeX XMLCite \textit{Á. O. Páll-Szabó}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 4, 461--468 (2017; Zbl 1438.30078) Full Text: DOI
Agarwal, Ritu; Paliwal, Gauri Shankar; Parihar, Hari S. Geometric properties and neighborhood results for a subclass of analytic functions involving Komatu integral. (English) Zbl 1413.30023 Stud. Univ. Babeș-Bolyai, Math. 62, No. 3, 377-394 (2017). MSC: 30C45 PDFBibTeX XMLCite \textit{R. Agarwal} et al., Stud. Univ. Babeș-Bolyai, Math. 62, No. 3, 377--394 (2017; Zbl 1413.30023) Full Text: DOI
Venkateswarlu, Bolineni; Rani, Nekkanti Third Hankel determinant for reciprocal of bounded turning function has a positive real part of order alpha. (English) Zbl 1399.30079 Stud. Univ. Babeș-Bolyai, Math. 62, No. 3, 331-340 (2017). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{B. Venkateswarlu} and \textit{N. Rani}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 3, 331--340 (2017; Zbl 1399.30079) Full Text: DOI
Agarwal, Ritu; Goswami, Mahesh Puri; Agarwal, Ravi P. Mellin transform in bicomplex space and its application. (English) Zbl 1399.30155 Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 217-232 (2017). MSC: 30G35 42B10 PDFBibTeX XMLCite \textit{R. Agarwal} et al., Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 217--232 (2017; Zbl 1399.30155) Full Text: DOI
Panigrahi, Trailokya; Breaz, Daniel Admissible classes of analytic functions associated with generalized Struve functions. (English) Zbl 1399.30063 Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 205-215 (2017). MSC: 30C45 30C80 33C10 PDFBibTeX XMLCite \textit{T. Panigrahi} and \textit{D. Breaz}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 205--215 (2017; Zbl 1399.30063) Full Text: DOI
Bohra, Nisha; Ravichandran, V. Schwarzian derivative and Janowski convexity. (English) Zbl 1399.30033 Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 197-204 (2017). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{N. Bohra} and \textit{V. Ravichandran}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 197--204 (2017; Zbl 1399.30033) Full Text: DOI
Prajapat, Jugal K.; Bansal, Deepak; Maharana, Sudhananda Bounds on third Hankel determinant for certain classes of analytic functions. (English) Zbl 1399.30067 Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 183-195 (2017). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{J. K. Prajapat} et al., Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 183--195 (2017; Zbl 1399.30067) Full Text: DOI
Ali, Ekram Elsayed Majorization for certain classes of analytic functions defined by convolution structure. (English) Zbl 1399.30025 Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 175-181 (2017). MSC: 30C45 PDFBibTeX XMLCite \textit{E. E. Ali}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 2, 175--181 (2017; Zbl 1399.30025) Full Text: DOI
Ali, Ekram Elsayed; El-Ashwah, Rabha Mohamed; Aouf, Mohamed Kamal On sandwich theorems for some subclasses defined by generalized hypergeometric functions. (English) Zbl 1399.30026 Stud. Univ. Babeș-Bolyai, Math. 62, No. 1, 89-99 (2017). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{E. E. Ali} et al., Stud. Univ. Babeș-Bolyai, Math. 62, No. 1, 89--99 (2017; Zbl 1399.30026) Full Text: DOI
Mohapatra, Ram Narayan; Panigrahi, Trailokya Starlikeness and related properties of certain integral operator for multivalent functions. (English) Zbl 1399.30053 Stud. Univ. Babeș-Bolyai, Math. 62, No. 1, 77-87 (2017). MSC: 30C45 PDFBibTeX XMLCite \textit{R. N. Mohapatra} and \textit{T. Panigrahi}, Stud. Univ. Babeș-Bolyai, Math. 62, No. 1, 77--87 (2017; Zbl 1399.30053) Full Text: DOI
Banerjee, Abhijit; Majumder, Sujoy Nonlinear differential polynomial sharing a nonzero polynomial with certain degree. (English) Zbl 1399.30119 Stud. Univ. Babeș-Bolyai, Math. 61, No. 4, 503-530 (2016). MSC: 30D35 PDFBibTeX XMLCite \textit{A. Banerjee} and \textit{S. Majumder}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 4, 503--530 (2016; Zbl 1399.30119)
Başcanbaz-Tunca, Gülen; Çetin, Nursel; Gal, Sorin G. Complex operators generated by \(q\)-Bernstein polynomials, \(q \geq 1\). (English) Zbl 1389.30146 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 169-176 (2016). MSC: 30E10 41A35 41A29 42A10 PDFBibTeX XMLCite \textit{G. Başcanbaz-Tunca} et al., Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 169--176 (2016; Zbl 1389.30146)
Arjomandinia, Parviz; Aghalary, Rasoul On the starlikeness of iterative integral operators. (English) Zbl 1389.30030 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 163-168 (2016). MSC: 30C45 PDFBibTeX XMLCite \textit{P. Arjomandinia} and \textit{R. Aghalary}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 163--168 (2016; Zbl 1389.30030)
Rahmatan, Hormoz; Najafzadeh, Shahram; Ebadian, Ali The norm of pre-Schwarzian derivatives of certain analytic functions with bounded positive real part. (English) Zbl 1389.30079 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 155-162 (2016). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{H. Rahmatan} et al., Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 155--162 (2016; Zbl 1389.30079)
Joshi, Sayali; Joshi, Santosh B.; Mohapatra, Ram On a subclass of analytic functions for operator on a Hilbert space. (English) Zbl 1389.30055 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 147-153 (2016). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{S. Joshi} et al., Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 147--153 (2016; Zbl 1389.30055)
Engel, Olga; Szász, Róbert On a subclass of convex functions. (English) Zbl 1389.30046 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 137-146 (2016). MSC: 30C45 PDFBibTeX XMLCite \textit{O. Engel} and \textit{R. Szász}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 137--146 (2016; Zbl 1389.30046)
Aouf, Mohamed K.; Mostafa, Adela O.; Lashen, Abd-Elmoem Y.; Munassar, Basheer M. On certain class of meromorphic univalent functions with positive coefficients defined by Dziok-Srivastava operator. (English) Zbl 1389.30028 Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 127-135 (2016). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{M. K. Aouf} et al., Stud. Univ. Babeș-Bolyai, Math. 61, No. 2, 127--135 (2016; Zbl 1389.30028)
Sharma, Kanika; Ravichandran, V. Sufficient conditions for Janowski starlike functions. (English) Zbl 1389.30084 Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 63-76 (2016). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{K. Sharma} and \textit{V. Ravichandran}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 63--76 (2016; Zbl 1389.30084)
Brar, Richa; Billing, Sukhwinder Singh Certain sufficient conditions for parabolic starlike and uniformly close-to-convex functions. (English) Zbl 1389.30111 Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 53-62 (2016). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{R. Brar} and \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 53--62 (2016; Zbl 1389.30111)
Oladipo, Abiodun Tinuoye Coefficient inequality for subclass of analytic univalent functions related to simple logistic activation functions. (English) Zbl 1389.30068 Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 45-52 (2016). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{A. T. Oladipo}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 45--52 (2016; Zbl 1389.30068)
Altınkaya, Şahsene; Yalçın, Sibel Faber polynomial coefficient bounds for a subclass of bi-univalent functions. (English) Zbl 1389.30023 Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 37-44 (2016). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{Ş. Altınkaya} and \textit{S. Yalçın}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 37--44 (2016; Zbl 1389.30023)
Rahrovi, Samira On a certain subclass of analytic univalent function defined by using Komatu integral operator. (English) Zbl 1389.30080 Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 27-36 (2016). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Rahrovi}, Stud. Univ. Babeș-Bolyai, Math. 61, No. 1, 27--36 (2016; Zbl 1389.30080)
Billing, Sukhwinder Singh On close-to-convex functions satisfying a differential inequality. (English) Zbl 1389.30035 Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 561-565 (2015). MSC: 30C45 PDFBibTeX XMLCite \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 561--565 (2015; Zbl 1389.30035)
Al Sarari, Fuad; Satyanarayana, Latha A new class of \((j, k)\)-symmetric harmonic starlike functions. (English) Zbl 1389.31001 Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 553-559 (2015). MSC: 31A05 30C45 PDFBibTeX XMLCite \textit{F. Al Sarari} and \textit{L. Satyanarayana}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 553--559 (2015; Zbl 1389.31001)
Porwal, Saurabh; Kumar Ghai, Sanjay; Kumar, Kaushal Some new subclasses of bi-univalent functions. (English) Zbl 1389.30078 Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 543-552 (2015). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Porwal} et al., Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 543--552 (2015; Zbl 1389.30078)
Pescar, Virgil On the univalence of an integral operator. (English) Zbl 1389.30073 Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 535-542 (2015). MSC: 30C45 PDFBibTeX XMLCite \textit{V. Pescar}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 4, 535--542 (2015; Zbl 1389.30073)
Li, Ming; Sugawa, Toshiyuki Some extensions of the Open Door Lemma. (English) Zbl 1374.30043 Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 421-430 (2015). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{M. Li} and \textit{T. Sugawa}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 421--430 (2015; Zbl 1374.30043) Full Text: arXiv
Krishna, D. Vamshee; RamReddy, T. Second Hankel determinant for the class of Bazilevic functions. (English) Zbl 1374.30041 Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 413-420 (2015). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{D. V. Krishna} and \textit{T. RamReddy}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 413--420 (2015; Zbl 1374.30041)
Öner, Birgül; Eker, Sevtap Sümer Pascu-type \(p\)-valent functions associated with the convolution structure. (English) Zbl 1374.30054 Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 403-411 (2015). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{B. Öner} and \textit{S. S. Eker}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 403--411 (2015; Zbl 1374.30054)
Al-Hawary, T.; Frasin, B. A.; Darus, M. On sandwich theorems for \(p\)-valent functions involving a new generalized differential operator. (English) Zbl 1374.30018 Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 395-402 (2015). MSC: 30C45 PDFBibTeX XMLCite \textit{T. Al-Hawary} et al., Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 395--402 (2015; Zbl 1374.30018)
Aouf, M. K.; Mostafa, A. O.; Lashin, A. Y.; Munassar, B. M. On certain subclasses of meromorphic functions defined by convolution with positive and fixed second coefficients. (English) Zbl 1374.30026 Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 385-394 (2015). MSC: 30C45 PDFBibTeX XMLCite \textit{M. K. Aouf} et al., Stud. Univ. Babeș-Bolyai, Math. 60, No. 3, 385--394 (2015; Zbl 1374.30026)
Andrei, Loriana Some differential superordination results using a generalized Sălăgean operator and Ruscheweyh operator. (English) Zbl 1374.30025 Stud. Univ. Babeș-Bolyai, Math. 60, No. 1, 75-89 (2015). MSC: 30C45 34A40 PDFBibTeX XMLCite \textit{L. Andrei}, Stud. Univ. Babeș-Bolyai, Math. 60, No. 1, 75--89 (2015; Zbl 1374.30025)
Aouf, M. K.; EL-Ashwah, R. M.; Zayed, H. M. Subclass of meromorphic functions with positive coefficients defined by convolution. (English) Zbl 1499.30223 Stud. Univ. Babeș-Bolyai, Math. 59, No. 3, 289-301 (2014). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{M. K. Aouf} et al., Stud. Univ. Babeș-Bolyai, Math. 59, No. 3, 289--301 (2014; Zbl 1499.30223) Full Text: Link
Billing, Sukhwinder Singh Differential inequalities and criteria for starlike and convex functions. (English) Zbl 1324.30061 Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 191-198 (2014). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 191--198 (2014; Zbl 1324.30061)
Magesh, Nanjundan; Porwal, Saurabh; Prameela, Vasu Harmonic uniformly \(\beta\)-starlike functions of complex order defined by convolution and integral convolution. (English) Zbl 1324.30027 Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 177-190 (2014). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{N. Magesh} et al., Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 177--190 (2014; Zbl 1324.30027)
Pescar, Virgil New univalence criteria for some integral operators. (English) Zbl 1324.30030 Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 167-176 (2014). MSC: 30C45 PDFBibTeX XMLCite \textit{V. Pescar}, Stud. Univ. Babeș-Bolyai, Math. 59, No. 2, 167--176 (2014; Zbl 1324.30030)
Nagpal, Sumit; Ravichandran, V. A comprehensive class of harmonic functions defined by convolution and its connection with integral transforms and hypergeometric functions. (English) Zbl 1313.30064 Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 41-55 (2014). MSC: 30C45 31A05 33C05 PDFBibTeX XMLCite \textit{S. Nagpal} and \textit{V. Ravichandran}, Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 41--55 (2014; Zbl 1313.30064) Full Text: arXiv
Szász, Róbert Improvement of a result due to P. T. Mocanu. (English) Zbl 1313.30080 Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 37-40 (2014). MSC: 30C45 PDFBibTeX XMLCite \textit{R. Szász}, Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 37--40 (2014; Zbl 1313.30080)
El-Ashwah, Rabha M.; Aouf, Mohammed K.; Hassan, Alaa H. Fekete-Szegő problem for a new class of analytic functions with complex order defined by certain differential operator. (English) Zbl 1313.30044 Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 25-36 (2014). MSC: 30C45 PDFBibTeX XMLCite \textit{R. M. El-Ashwah} et al., Stud. Univ. Babeș-Bolyai, Math. 59, No. 1, 25--36 (2014; Zbl 1313.30044)
Aldweby, Huda; Darus, Maslina Integral operator defined by \(q\)-analogue of Liu-Srivastava operator. (English) Zbl 1313.30024 Stud. Univ. Babeș-Bolyai, Math. 58, No. 4, 529-537 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{H. Aldweby} and \textit{M. Darus}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 4, 529--537 (2013; Zbl 1313.30024)
Andrica, Dorin; Barbu, Cătălin The hyperbolic Desargues theorem in the Poincaré model of hyperbolic geometry. (English) Zbl 1313.30156 Stud. Univ. Babeș-Bolyai, Math. 58, No. 4, 431-435 (2013). MSC: 30F45 20N99 51B10 51M10 PDFBibTeX XMLCite \textit{D. Andrica} and \textit{C. Barbu}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 4, 431--435 (2013; Zbl 1313.30156)
Billing, Sukhwinder Singh Some sufficient conditions for starlike and convex functions. (English) Zbl 1299.30068 Stud. Univ. Babeș-Bolyai, Math. 58, No. 3, 355-360 (2013). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{S. S. Billing}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 3, 355--360 (2013; Zbl 1299.30068)
Joshi, Santosh; Shelake, Girish Certain subclasses of analytic univalent functions generated by harmonic univalent functions. (English) Zbl 1299.30032 Stud. Univ. Babeș-Bolyai, Math. 58, No. 3, 345-354 (2013). MSC: 30C45 30C55 30E20 PDFBibTeX XMLCite \textit{S. Joshi} and \textit{G. Shelake}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 3, 345--354 (2013; Zbl 1299.30032)
Muhanna, Yusuf Abu; Yallaoui, El-Bachir Compact composition operators on spaces of Laguerre polynomials kernels. (English) Zbl 1299.30112 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 189-198 (2013). MSC: 30E20 30D99 47B33 33C45 PDFBibTeX XMLCite \textit{Y. A. Muhanna} and \textit{E.-B. Yallaoui}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 189--198 (2013; Zbl 1299.30112)
Kumar, S. Sivaprasad; Kumar, Virendra Fekete-Szegö problem for a class of analytic functions. (English) Zbl 1299.30035 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 181-188 (2013). MSC: 30C45 30C80 PDFBibTeX XMLCite \textit{S. S. Kumar} and \textit{V. Kumar}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 181--188 (2013; Zbl 1299.30035)
Vijaya, K.; Deepa, K. Neighborhood and partial sums results on the class of starlike functions involving Dziok-Srivastava operator. (English) Zbl 1299.30055 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 171-180 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{K. Vijaya} and \textit{K. Deepa}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 171--180 (2013; Zbl 1299.30055)
Stanciu, Laura; Breaz, Daniel The order of convexity for a new integral operator. (English) Zbl 1299.30050 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 165-170 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{L. Stanciu} and \textit{D. Breaz}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 165--170 (2013; Zbl 1299.30050)
Porwal, Saurabh; Dixit, Kaushal Kishore On a certain class of analytic functions. (English) Zbl 1299.30043 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 159-164 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{S. Porwal} and \textit{K. K. Dixit}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 159--164 (2013; Zbl 1299.30043)
Frasin, Basem Aref; Magesh, Nanjundan Certain subclasses of uniformly harmonic \(\beta\)-starlike functions of complex order. (English) Zbl 1299.30026 Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 147-158 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{B. A. Frasin} and \textit{N. Magesh}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 2, 147--158 (2013; Zbl 1299.30026)
Aouf, Mohamed Kamal; Magesh, Nanjundan; Jothibasu, Jagadeesan; Murthy, Sami On certain subclasses of meromorphic functions with positive coefficients. (English) Zbl 1299.30067 Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 31-42 (2013). MSC: 30C80 30C45 PDFBibTeX XMLCite \textit{M. K. Aouf} et al., Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 31--42 (2013; Zbl 1299.30067)
Selvaraj, Chellaian; Moni, Chinnian Santhosh Subordination results for a class of Bazilević functions with respect to symmetric points. (English) Zbl 1299.30044 Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 23-30 (2013). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{C. Selvaraj} and \textit{C. S. Moni}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 23--30 (2013; Zbl 1299.30044)
Porwal, Saurabh; Dixit, Kaushal Kishore Partial sums of harmonic univalent functions. (English) Zbl 1299.30042 Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 15-21 (2013). MSC: 30C45 26D05 PDFBibTeX XMLCite \textit{S. Porwal} and \textit{K. K. Dixit}, Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 15--21 (2013; Zbl 1299.30042)
Faisal, Imran; Shareef, Zahid; Darus, Maslina On certain subclasses of analytic functions. (English) Zbl 1299.30023 Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 9-14 (2013). MSC: 30C45 PDFBibTeX XMLCite \textit{I. Faisal} et al., Stud. Univ. Babeș-Bolyai, Math. 58, No. 1, 9--14 (2013; Zbl 1299.30023)
Arsenović, Miloš; Shamoyan, Romi F. Two remarks on harmonic Bergman spaces in \(\mathbb B^n\) and \(\mathbb R^{n+1}_+\). (English) Zbl 1299.30134 Stud. Univ. Babeș-Bolyai, Math. 57, No. 4, 519-525 (2012). Reviewer: D. K. Ugulawa (Tbilisi) MSC: 30H20 26D07 PDFBibTeX XMLCite \textit{M. Arsenović} and \textit{R. F. Shamoyan}, Stud. Univ. Babeș-Bolyai, Math. 57, No. 4, 519--525 (2012; Zbl 1299.30134)
Yaşar, Elif; Yalçin, Sibel Generalized Salagean-type harmonic univalent functions. (English) Zbl 1289.30126 Stud. Univ. Babeș-Bolyai, Math. 57, No. 3, 395-403 (2012). MSC: 30C45 30C50 PDFBibTeX XMLCite \textit{E. Yaşar} and \textit{S. Yalçin}, Stud. Univ. Babeș-Bolyai, Math. 57, No. 3, 395--403 (2012; Zbl 1289.30126)
Zaprawa, Paweł Distortion theorems for certain subclasses of typically real functions. (English) Zbl 1274.30084 Stud. Univ. Babeș-Bolyai, Math. 57, No. 2, 301-308 (2012). MSC: 30C45 PDFBibTeX XMLCite \textit{P. Zaprawa}, Stud. Univ. Babeș-Bolyai, Math. 57, No. 2, 301--308 (2012; Zbl 1274.30084)