Guzmán-Pro, Santiago; Hernández-Cruz, César Duality pairs and homomorphisms to oriented and unoriented cycles. (English) Zbl 1470.05117 Electron. J. Comb. 28, No. 3, Research Paper P3.17, 13 p. (2021). MSC: 05C60 05C75 05C20 PDFBibTeX XMLCite \textit{S. Guzmán-Pro} and \textit{C. Hernández-Cruz}, Electron. J. Comb. 28, No. 3, Research Paper P3.17, 13 p. (2021; Zbl 1470.05117) Full Text: DOI arXiv
Cockburn, Sally Homomorphic preimages of geometric paths. (English) Zbl 1390.05147 Discuss. Math., Graph Theory 38, No. 2, 553-571 (2018). MSC: 05C60 05C62 05C38 PDFBibTeX XMLCite \textit{S. Cockburn}, Discuss. Math., Graph Theory 38, No. 2, 553--571 (2018; Zbl 1390.05147) Full Text: DOI
Zhou, Huishan; Zhu, Xuding Multiplicativity of acyclic local tournaments. (English) Zbl 0907.05023 Combinatorica 17, No. 1, 135-145 (1997). MSC: 05C20 05C45 PDFBibTeX XMLCite \textit{H. Zhou} and \textit{X. Zhu}, Combinatorica 17, No. 1, 135--145 (1997; Zbl 0907.05023) Full Text: DOI
Zhou, Huishan Multiplicativity of acyclic digraphs. (English) Zbl 0888.05031 Discrete Math. 176, No. 1-3, 263-271 (1997). Reviewer: G.Chaty (Paris) MSC: 05C20 05C45 20B27 PDFBibTeX XMLCite \textit{H. Zhou}, Discrete Math. 176, No. 1--3, 263--271 (1997; Zbl 0888.05031) Full Text: DOI
Hell, Pavol; Nešetřil, Jaroslav; Zhu, Xuding Complexity of tree homomorphisms. (English) Zbl 0868.05018 Discrete Appl. Math. 70, No. 1, 23-36 (1996). Reviewer: P.Kirschenhofer (Leoben) MSC: 05C05 68R10 05C15 05C38 PDFBibTeX XMLCite \textit{P. Hell} et al., Discrete Appl. Math. 70, No. 1, 23--36 (1996; Zbl 0868.05018) Full Text: DOI Link
Nešetřil, Jaroslav; Zhu, Xuding Path homomorphisms. (English) Zbl 0857.05057 Math. Proc. Camb. Philos. Soc. 120, No. 2, 207-220 (1996). Reviewer: N.F.Quimpo (Manila) MSC: 05C38 05C99 06A07 PDFBibTeX XMLCite \textit{J. Nešetřil} and \textit{X. Zhu}, Math. Proc. Camb. Philos. Soc. 120, No. 2, 207--220 (1996; Zbl 0857.05057) Full Text: DOI
Duffus, Dwight; Sauer, Norbert Lattices arising in categorial investigations of Hedetniemi’s conjecture. (English) Zbl 0853.06006 Discrete Math. 152, No. 1-3, 125-139 (1996). MSC: 06D15 08A02 05C15 18D35 18B35 PDFBibTeX XMLCite \textit{D. Duffus} and \textit{N. Sauer}, Discrete Math. 152, No. 1--3, 125--139 (1996; Zbl 0853.06006) Full Text: DOI
Hell, Pavol; Zhu, Xuding Homomorphisms to oriented paths. (English) Zbl 0819.05030 Discrete Math. 132, No. 1-3, 107-114 (1994). Reviewer: J.Bang-Jensen (Odense) MSC: 05C20 05C38 05C75 05C15 PDFBibTeX XMLCite \textit{P. Hell} and \textit{X. Zhu}, Discrete Math. 132, No. 1--3, 107--114 (1994; Zbl 0819.05030) Full Text: DOI